mirror of https://github.com/schoebel/mars
7342 lines
134 KiB
Plaintext
7342 lines
134 KiB
Plaintext
#LyX 2.3 created this file. For more info see http://www.lyx.org/
|
||
\lyxformat 544
|
||
\begin_document
|
||
\begin_header
|
||
\save_transient_properties true
|
||
\origin unavailable
|
||
\textclass scrreprt
|
||
\begin_preamble
|
||
\usepackage{listings}
|
||
\end_preamble
|
||
\options abstracton,most,usenames,dvipsnames
|
||
\use_default_options true
|
||
\begin_modules
|
||
customHeadersFooters
|
||
enumitem
|
||
fixltx2e
|
||
tcolorbox
|
||
\end_modules
|
||
\maintain_unincluded_children false
|
||
\language english
|
||
\language_package default
|
||
\inputencoding auto
|
||
\fontencoding global
|
||
\font_roman "default" "default"
|
||
\font_sans "default" "default"
|
||
\font_typewriter "default" "default"
|
||
\font_math "auto" "auto"
|
||
\font_default_family rmdefault
|
||
\use_non_tex_fonts false
|
||
\font_sc false
|
||
\font_osf false
|
||
\font_sf_scale 100 100
|
||
\font_tt_scale 100 100
|
||
\use_microtype false
|
||
\use_dash_ligatures false
|
||
\graphics default
|
||
\default_output_format default
|
||
\output_sync 0
|
||
\bibtex_command default
|
||
\index_command default
|
||
\paperfontsize 10
|
||
\spacing single
|
||
\use_hyperref true
|
||
\pdf_title "Football User Manual"
|
||
\pdf_author "Thomas Schöbel-Theuer"
|
||
\pdf_bookmarks true
|
||
\pdf_bookmarksnumbered false
|
||
\pdf_bookmarksopen true
|
||
\pdf_bookmarksopenlevel 2
|
||
\pdf_breaklinks true
|
||
\pdf_pdfborder true
|
||
\pdf_colorlinks true
|
||
\pdf_backref section
|
||
\pdf_pdfusetitle true
|
||
\papersize a4paper
|
||
\use_geometry true
|
||
\use_package amsmath 1
|
||
\use_package amssymb 1
|
||
\use_package cancel 1
|
||
\use_package esint 1
|
||
\use_package mathdots 1
|
||
\use_package mathtools 1
|
||
\use_package mhchem 1
|
||
\use_package stackrel 1
|
||
\use_package stmaryrd 1
|
||
\use_package undertilde 1
|
||
\cite_engine basic
|
||
\cite_engine_type default
|
||
\biblio_style plain
|
||
\use_bibtopic false
|
||
\use_indices false
|
||
\paperorientation portrait
|
||
\suppress_date false
|
||
\justification true
|
||
\use_refstyle 1
|
||
\use_minted 0
|
||
\index Index
|
||
\shortcut idx
|
||
\color #008000
|
||
\end_index
|
||
\leftmargin 3.7cm
|
||
\topmargin 2.7cm
|
||
\rightmargin 2.8cm
|
||
\bottommargin 2.3cm
|
||
\secnumdepth 3
|
||
\tocdepth 3
|
||
\paragraph_separation indent
|
||
\paragraph_indentation default
|
||
\is_math_indent 0
|
||
\math_numbering_side default
|
||
\quotes_style english
|
||
\dynamic_quotes 0
|
||
\papercolumns 1
|
||
\papersides 2
|
||
\paperpagestyle headings
|
||
\tracking_changes false
|
||
\output_changes false
|
||
\html_math_output 0
|
||
\html_css_as_file 0
|
||
\html_be_strict false
|
||
\end_header
|
||
|
||
\begin_body
|
||
|
||
\begin_layout Standard
|
||
\begin_inset ERT
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
|
||
\backslash
|
||
title{Football User Manual}
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset CommandInset include
|
||
LatexCommand input
|
||
preview true
|
||
filename "common-front-matter.lyx"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset CommandInset toc
|
||
LatexCommand tableofcontents
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Chapter
|
||
LV Football / VM Football / Container Football
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "chap:LV-Football"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
The Football scripts can be obtained in two different ways:
|
||
\end_layout
|
||
|
||
\begin_layout Enumerate
|
||
|
||
\family typewriter
|
||
git clone --recurse-submodules https://github.com/schoebel/mars
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
|
||
\family default
|
||
then
|
||
\family typewriter
|
||
cd mars/football/
|
||
\end_layout
|
||
|
||
\begin_layout Enumerate
|
||
|
||
\family typewriter
|
||
git clone https://github.com/schoebel/football
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
The
|
||
\family typewriter
|
||
--recurse-submodule
|
||
\family default
|
||
method is the preferred way for non-developers because the main repo contains
|
||
a link to the right version of Football.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
When switching branches, you should use
|
||
\family typewriter
|
||
git submodule update
|
||
\family default
|
||
for synchronizing the Football submodule with the MARS main checkout.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset Graphics
|
||
filename images/lightbulb_brightlit_benj_.png
|
||
lyxscale 12
|
||
scale 7
|
||
|
||
\end_inset
|
||
|
||
Recommended MARS branch for playing Football is
|
||
\family typewriter
|
||
mars0.1a.y
|
||
\family default
|
||
.
|
||
Although the old stable branch
|
||
\family typewriter
|
||
mars0.1.y
|
||
\family default
|
||
has been updated for the most important
|
||
\family typewriter
|
||
marsadm
|
||
\family default
|
||
features
|
||
\family typewriter
|
||
merge-cluster
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
split-cluster
|
||
\family default
|
||
, it does not scale well for Football and can cause operational problems
|
||
when merging too many hosts together, showing some
|
||
\begin_inset Formula $O(n^{2})$
|
||
\end_inset
|
||
|
||
metadata update behaviour where
|
||
\begin_inset Formula $n$
|
||
\end_inset
|
||
|
||
is the number of machines in a MARS cluster.
|
||
The future branch
|
||
\family typewriter
|
||
mars0.1b.y
|
||
\family default
|
||
will contain more scalability improvements; in particular the
|
||
\family typewriter
|
||
split-cluster
|
||
\family default
|
||
operation should no longer be needed at all because it is planned to scale
|
||
with
|
||
\begin_inset Formula $O(k)$
|
||
\end_inset
|
||
|
||
where
|
||
\begin_inset Formula $k$
|
||
\end_inset
|
||
|
||
is the number of resources at a
|
||
\emph on
|
||
single
|
||
\emph default
|
||
host.
|
||
This should allow creation of a
|
||
\emph on
|
||
virtual(!)
|
||
\emph default
|
||
|
||
\family typewriter
|
||
BigCluster
|
||
\family default
|
||
pool at
|
||
\emph on
|
||
metadata
|
||
\emph default
|
||
level (where metadata transfer rates are typically measured in KiB/s),
|
||
consisting of thousands of machines, while at the same time creating a
|
||
|
||
\family typewriter
|
||
LocalSharding
|
||
\family default
|
||
or
|
||
\family typewriter
|
||
FlexibleSharding
|
||
\family default
|
||
model at the realtime IO paths (where some petabytes are pumped through
|
||
thick pipelines).
|
||
Please check the other branches regularly at the github repo whether some
|
||
newer branches will be marked
|
||
\begin_inset Quotes eld
|
||
\end_inset
|
||
|
||
stable
|
||
\begin_inset Quotes erd
|
||
\end_inset
|
||
|
||
, or at least
|
||
\begin_inset Quotes eld
|
||
\end_inset
|
||
|
||
beta
|
||
\begin_inset Quotes erd
|
||
\end_inset
|
||
|
||
.
|
||
At the moment (spring 2018),
|
||
\family typewriter
|
||
mars0.1a.y
|
||
\family default
|
||
is marked
|
||
\begin_inset Quotes eld
|
||
\end_inset
|
||
|
||
beta
|
||
\begin_inset Quotes erd
|
||
\end_inset
|
||
|
||
although it is in production at several thousands of machines for several
|
||
months.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Low-level documentation is available by calling any of the scripts with
|
||
|
||
\family typewriter
|
||
--help
|
||
\family default
|
||
parameter (see also appendix
|
||
\begin_inset CommandInset ref
|
||
LatexCommand ref
|
||
reference "sec:football-–help"
|
||
|
||
\end_inset
|
||
|
||
ff):
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
|
||
\family typewriter
|
||
./football.sh --help
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
|
||
\family typewriter
|
||
./screener.sh --help
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
By adding
|
||
\family typewriter
|
||
--verbose
|
||
\family default
|
||
, you can get a list of parameters for configuring and tweaking.
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
Football Overview
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "sec:Football-Overview"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Topmost architectural level (not yet implemented):
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Graphics
|
||
filename images/pool-optimizer.fig
|
||
width 100col%
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
The planned heart of the Football system is the generic pool optimizer,
|
||
which aims to provide a similar functionality than Kubernetes, but working
|
||
on a sharding architecture.
|
||
Instead of controlling
|
||
\emph on
|
||
stateless
|
||
\emph default
|
||
Docker containers, its designated goal is to control masses of LVs on thousands
|
||
of machines, creating a
|
||
\begin_inset Quotes eld
|
||
\end_inset
|
||
|
||
Virtually Distributed LVM pool
|
||
\begin_inset Quotes erd
|
||
\end_inset
|
||
|
||
(petabytes of total storage), and doing similar things than Software Defined
|
||
Storage (SDS) on the virtual pool.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
In addition to load balancing of storage space (and its special cases like
|
||
hardware lifecycle), there will be designated plugins for dealing with
|
||
CPU and RAM dimensions.
|
||
Further dimensions and a variety of goal functions could be added via future
|
||
plugins.
|
||
The optimizer itself aims to be as generic as possible, while functionality
|
||
and interfaces can be added via plugins and/or drivers.
|
||
Future versions might even support DRBD in addition to MARS.
|
||
The first version may use a simple greedy algorithm for solving the underlying
|
||
|
||
\begin_inset Formula ${\cal NP}$
|
||
\end_inset
|
||
|
||
-complete problem, but could be augmented with more sophisticated problem
|
||
solvers in future.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
The automatic operations generated by pool-optimizer will be customizable
|
||
by dozens of parameters, and also extendable by action plugins.
|
||
At the moment, the following
|
||
\family typewriter
|
||
football.sh
|
||
\family default
|
||
actions are planned:
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
migrate
|
||
\family default
|
||
This will move an LV (together with its VM / LXC container / etc) to a
|
||
different machine in the machine pool.
|
||
This is the classical Football
|
||
\begin_inset Quotes eld
|
||
\end_inset
|
||
|
||
kick
|
||
\begin_inset Quotes erd
|
||
\end_inset
|
||
|
||
operation.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
shrink
|
||
\family default
|
||
This decreases the occupied LV space of a filesystem (currently only
|
||
\family typewriter
|
||
xfs
|
||
\family default
|
||
implemented, but easily extendable) via creation of a smaller temporary
|
||
LV at the hypervisor, then transferring all data during operations via
|
||
local
|
||
\family typewriter
|
||
rsync
|
||
\family default
|
||
, then shutting down the VM for a short period, doing a final incremental
|
||
|
||
\family typewriter
|
||
rsync
|
||
\family default
|
||
, renaming the copied temporary LV to its original name, restarting the
|
||
VM on the new version (which contains the same data as before but wastes
|
||
less space), and finally re-establishing the MARS replicas (but of course
|
||
with smaller LV size).
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
extend
|
||
\family default
|
||
This is much easier than shrinking: it first increases the underlying LV
|
||
size dynamically on all replicas, then
|
||
\family typewriter
|
||
marsadm resize
|
||
\family default
|
||
, and finally calls
|
||
\family typewriter
|
||
xfs_growfs
|
||
\family default
|
||
while the filesystem remains mounted and while the VM / container is running.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
migrate+shrink
|
||
\family default
|
||
Similar to
|
||
\family typewriter
|
||
migrate
|
||
\family default
|
||
immediately followed by
|
||
\family typewriter
|
||
shrink
|
||
\family default
|
||
, but produces less network traffic and runs faster.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
migrate+shrink+back
|
||
\family default
|
||
Use this when there is not enough local temporary space for shrinking.
|
||
The LV is first migrated to a temporary host, then shrunk, and finally
|
||
migrated back to its original position.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
By running the overall system in an endless loop, a control loop for permanent
|
||
optimization can be established.
|
||
Typical periods are each few days, or once a week.
|
||
In addition, manual triggering is also possible.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
The result of an (incremental) pool-optimizer run is a CSV file, which may
|
||
be automatically forwarded to the execution engine
|
||
\family typewriter
|
||
football.sh
|
||
\family default
|
||
for
|
||
\emph on
|
||
manual
|
||
\emph default
|
||
execution, or to
|
||
\family typewriter
|
||
screener.sh
|
||
\family default
|
||
for mass execution on a common control machine.
|
||
Alternatively, intermediate steps like manual checking, filtering etc may
|
||
be inserted into the processing pipeline.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
The excecution engine
|
||
\family typewriter
|
||
football.sh
|
||
\family default
|
||
rep.
|
||
its 1&1-internal variant
|
||
\family typewriter
|
||
tetris.sh
|
||
\family default
|
||
is already in production at 1&1, and already reached more than 300 migrations
|
||
per week.
|
||
Architecture of the execution engine:
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Graphics
|
||
filename images/football.fig
|
||
width 90col%
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
The so-called Screener is simply a generic program allowing mass execution
|
||
of arbitrary scripts in background
|
||
\family typewriter
|
||
screen
|
||
\family default
|
||
sessions.
|
||
This allows masses (several hundreds, possibly thousands) of long-lasting
|
||
processes (hours or days) to run
|
||
\emph on
|
||
unattended
|
||
\emph default
|
||
in background, while allowing a (larger) group of sysadmins to attach /
|
||
detach to
|
||
\family typewriter
|
||
screen
|
||
\family default
|
||
sessions at any time for corrective by-hand actions, e.g.
|
||
in case of failures or other problems, or for supervision, etc.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
When Screener is combined with the Football execution engine
|
||
\family typewriter
|
||
football.sh
|
||
\family default
|
||
, more specialized functionality is available (via a variety of plugins):
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
Optional waiting for sysadmin confirmation before some customer downtime
|
||
is initiated.
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
Automatic generation of
|
||
\family typewriter
|
||
motd
|
||
\family default
|
||
status reporting to other sysadmins.
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
Automatic sending of email alerts or status reports, e.g.
|
||
on errors or critical errors, etc.
|
||
By sending email to SMS gateways, real-time alerting can be configured
|
||
(e.g.
|
||
over the weekend).
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
Generic interfacing to external scripts with configurable parameters, e.g.
|
||
for triggering monitoring systems, feeding external databases, etc.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Screener can detect and will automatically manage the following states (in
|
||
this example, all state lists are empty):
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset listings
|
||
inline false
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
$common_user> ./screener.sh list
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of waiting:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of delayed:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of condition:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of running:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of critical:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of serious:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of interrupted:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of illegal:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of failed:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of timeouted:
|
||
\end_layout
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
List of done:
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
Screener can discriminate the
|
||
\emph on
|
||
seriosity
|
||
\emph default
|
||
of errors as follows:
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
failed
|
||
\family default
|
||
An error occurred
|
||
\emph on
|
||
outside
|
||
\emph default
|
||
of critical sections, e.g.
|
||
during preparation of LV space etc.
|
||
During ordinary operations, VMs / containers are usually running continuously,
|
||
and there is no customer impact to be expected.
|
||
Typically,
|
||
\family typewriter
|
||
./screener.sh restart $resource
|
||
\family default
|
||
should fix the problem if it is only a temporary problem.
|
||
However, for maximum safety, manual inspection via .
|
||
\family typewriter
|
||
/screener.sh attach $resource
|
||
\family default
|
||
or inspection of the logfile via .
|
||
\family typewriter
|
||
/screener.sh show $resource
|
||
\family default
|
||
is recommended before trying an automatic restart.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
serious
|
||
\family default
|
||
An error occured while a VM / container was temporarily stopped, which
|
||
|
||
\series bold
|
||
would
|
||
\series default
|
||
normally lead to customer downtime, but Football was able to
|
||
\emph on
|
||
compensate
|
||
\emph default
|
||
the problem
|
||
\emph on
|
||
for now
|
||
\emph default
|
||
by
|
||
\emph on
|
||
automatically
|
||
\emph default
|
||
restarting the VM.
|
||
Thus no long-lasting customer impact has likely occurred.
|
||
However, manual inspection and repair by sysadmins is likely necessary.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
critical
|
||
\family default
|
||
An
|
||
\emph on
|
||
uncompensated
|
||
\emph default
|
||
error occured during customer downtime.
|
||
The VM / container is likely down.
|
||
This will need manual sysadmin actions ASAP, such as hardware replacement,
|
||
networking fixes, etc.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
timeouted
|
||
\family default
|
||
This means that the script is assumed to hang because it did not produce
|
||
any output for more than
|
||
\family typewriter
|
||
$session_timeout
|
||
\family default
|
||
seconds (default 3600 * 3 = 3 hours).
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
illegal
|
||
\family default
|
||
This means that a precondition is not met.
|
||
For example, there is not enough space at the target LVM.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
interrupted
|
||
\family default
|
||
Somebody has pressed
|
||
\family typewriter
|
||
Ctl-c
|
||
\family default
|
||
in a
|
||
\family typewriter
|
||
screen
|
||
\family default
|
||
session, or has otherwise sent a signal to the running script.
|
||
As a result, a signal
|
||
\family typewriter
|
||
trap
|
||
\family default
|
||
has been executed.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
Ordinary Screener states during execution:
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
running
|
||
\family default
|
||
This means that a (background) process is currently running.
|
||
You can attach to the screen session either manually via
|
||
\family typewriter
|
||
screen -x $pid.$resource
|
||
\family default
|
||
, or more comfortably via
|
||
\family typewriter
|
||
./screener.sh attach $resource
|
||
\family default
|
||
.
|
||
Then you can use
|
||
\family typewriter
|
||
screen
|
||
\family default
|
||
as documented in
|
||
\family typewriter
|
||
man screen
|
||
\family default
|
||
.
|
||
The most important operation is detaching via keystrokes
|
||
\family typewriter
|
||
Ctrl-a d
|
||
\family default
|
||
.
|
||
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
|
||
\begin_inset Graphics
|
||
filename images/MatieresCorrosives.png
|
||
lyxscale 50
|
||
scale 17
|
||
|
||
\end_inset
|
||
|
||
Notice: don't press
|
||
\family typewriter
|
||
Ctrl-c
|
||
\family default
|
||
unless you know what you are doing.
|
||
In most cases, this will terminate the running process, and in consequence
|
||
lead to
|
||
\family typewriter
|
||
\series bold
|
||
interrupted
|
||
\family default
|
||
\series default
|
||
or
|
||
\family typewriter
|
||
\series bold
|
||
failed
|
||
\family default
|
||
\series default
|
||
or even
|
||
\family typewriter
|
||
\series bold
|
||
critical
|
||
\family default
|
||
\series default
|
||
state (depending on the moment of keypress).
|
||
Depending on parameter
|
||
\family typewriter
|
||
drop_shell
|
||
\family default
|
||
, the Screener session will also terminate, or you will get an interactive
|
||
shell for manual repair.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
waiting
|
||
\family default
|
||
When the plugins
|
||
\family typewriter
|
||
football-waiting
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
screener-waiting
|
||
\family default
|
||
are configured properly (which is
|
||
\emph on
|
||
not
|
||
\emph default
|
||
the default), the script execution will pause immediately before a customer
|
||
downtime action would be started.
|
||
Now any sysadmin from the larger group has a chance to
|
||
\family typewriter
|
||
./screener attach $resource
|
||
\family default
|
||
and to press RETURN to continue the waiting script and to personally watch
|
||
the course of the critical section.
|
||
There are some more comfortable variants like
|
||
\family typewriter
|
||
./screener continue $resource
|
||
\family default
|
||
for background continuation of a single session, or
|
||
\family typewriter
|
||
./screener continue 100
|
||
\family default
|
||
which can be used for continuing masses of waiting sessions.
|
||
There are further variants which are automatically attaching to sessions,
|
||
see Appendix
|
||
\begin_inset CommandInset ref
|
||
LatexCommand ref
|
||
reference "sec:screener–help"
|
||
|
||
\end_inset
|
||
|
||
.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
delayed
|
||
\family default
|
||
This state is only entered before
|
||
\family typewriter
|
||
lvremove $resource
|
||
\family default
|
||
is executed (which will destroy your old internal backup copy), and when
|
||
configured appropriately.
|
||
Typically, you also need to configure the
|
||
\family typewriter
|
||
$wait_before_cleanup
|
||
\family default
|
||
variable in order to avoid endless waiting.
|
||
Notice that old LV data gets soon outdated after a while, so please don't
|
||
unnecessarily prolong the running time of your scripts by choosing too
|
||
long
|
||
\family typewriter
|
||
$wait_before_cleanup
|
||
\family default
|
||
values.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
condition
|
||
\family default
|
||
Special case of delay: some condition is currently not met, such as the
|
||
|
||
\family typewriter
|
||
$business_hours
|
||
\family default
|
||
feature, where you can configure when customer downtimes are allowed, and
|
||
when not.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
done
|
||
\family default
|
||
This means that the script reported successful execution by exit status
|
||
|
||
\family typewriter
|
||
0
|
||
\family default
|
||
.
|
||
The background screen session terminated automatically.
|
||
You can inspect the logfile manually via
|
||
\family typewriter
|
||
./screener.sh show $resource
|
||
\family default
|
||
, or by looking into the directory
|
||
\family typewriter
|
||
$screener_logdir/done/
|
||
\family default
|
||
.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset Graphics
|
||
filename images/lightbulb_brightlit_benj_.png
|
||
lyxscale 12
|
||
scale 7
|
||
|
||
\end_inset
|
||
|
||
Logfiles of other states can also be inspected (or monitored by standard
|
||
tools like
|
||
\family typewriter
|
||
grep
|
||
\family default
|
||
) by looking into sister directories, such as
|
||
\family typewriter
|
||
$screener_logdir/running/
|
||
\family default
|
||
.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset Graphics
|
||
filename images/MatieresCorrosives.png
|
||
lyxscale 50
|
||
scale 17
|
||
|
||
\end_inset
|
||
|
||
When running Screener for several months or years, old logfiles will accumulate
|
||
in these directories over time.
|
||
Call
|
||
\family typewriter
|
||
./screener.sh purge
|
||
\family default
|
||
or
|
||
\family typewriter
|
||
./screener.sh cron
|
||
\family default
|
||
regularly via a cron job, or archieve your old logfiles from time to time
|
||
via another method.
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
HOWTO instantiate / customize Football
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "sec:HOWTO-instantiate-Football"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
In order to install and operate Football, the recommended
|
||
\emph on
|
||
deployment
|
||
\emph default
|
||
strategy is bottom-up, layer by layer.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset Graphics
|
||
filename images/lightbulb_brightlit_benj_.png
|
||
lyxscale 12
|
||
scale 7
|
||
|
||
\end_inset
|
||
|
||
Top-down strategies should be used
|
||
\emph on
|
||
only
|
||
\emph default
|
||
, and
|
||
\emph on
|
||
only
|
||
\emph default
|
||
, for planning.
|
||
An Egyptian pyramid can never be built, even if you had some billions of
|
||
workers, by starting at the tip and by creating the foundations as the
|
||
very last step.
|
||
Suchalike attempt would end up in a disaster.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset Graphics
|
||
filename images/lightbulb_brightlit_benj_.png
|
||
lyxscale 12
|
||
scale 7
|
||
|
||
\end_inset
|
||
|
||
|
||
\series bold
|
||
Testing
|
||
\series default
|
||
of each layer
|
||
\series bold
|
||
separately
|
||
\series default
|
||
is very important.
|
||
Before proceeding to the next higher layer, first ensure that any lower
|
||
layer is working
|
||
\emph on
|
||
correctly
|
||
\emph default
|
||
.
|
||
Otherwise debugging can become tricky.
|
||
\end_layout
|
||
|
||
\begin_layout Subsection
|
||
Block Device Layer
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Step-by-step instructions can be found in chapter
|
||
\begin_inset CommandInset ref
|
||
LatexCommand vref
|
||
reference "chap:Quick-Start-Guide"
|
||
|
||
\end_inset
|
||
|
||
.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Please ensure that your hardware (including RAID controllers and LVM and
|
||
so on), and your operating system, and your network / setup, and MARS is
|
||
working correctly before proceeding to the next layer.
|
||
\end_layout
|
||
|
||
\begin_layout Subsection
|
||
Mechanics Layer of Cluster Operations
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "subsec:Mechanics-Layer of Cluster"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
In the following example, it is assumed that
|
||
\family typewriter
|
||
systemd
|
||
\family default
|
||
is used, as explained in section
|
||
\begin_inset CommandInset ref
|
||
LatexCommand vref
|
||
reference "sec:systemd-Templates"
|
||
|
||
\end_inset
|
||
|
||
, and now applied to
|
||
\family typewriter
|
||
vm4711
|
||
\family default
|
||
supposed to run on hypervisors
|
||
\family typewriter
|
||
hyper1234a
|
||
\family default
|
||
(primary role) and
|
||
\family typewriter
|
||
hyper1234b
|
||
\family default
|
||
(secondary role), which is assumed to be controllable via the following
|
||
|
||
\family typewriter
|
||
systemd
|
||
\family default
|
||
start and stop units:
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
|
||
\family typewriter
|
||
marsadm set-systemd-unit vm4711 lxc-vm4711.target vol-vm4711.mount
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Test the cluster mechanics layer like in the following example:
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
On host
|
||
\family typewriter
|
||
hyper1234b
|
||
\family default
|
||
, the following must work:
|
||
\family typewriter
|
||
marsadm primary vm4711
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This must result in an automatic handover of
|
||
\family typewriter
|
||
vm4711
|
||
\family default
|
||
from the current primary site
|
||
\family typewriter
|
||
hyper1234a
|
||
\family default
|
||
to the new primary
|
||
\family typewriter
|
||
hyper1234b
|
||
\family default
|
||
, as explained in section
|
||
\begin_inset CommandInset ref
|
||
LatexCommand vref
|
||
reference "sec:systemd-Templates"
|
||
|
||
\end_inset
|
||
|
||
.
|
||
Please check that
|
||
\family typewriter
|
||
vm4711
|
||
\family default
|
||
is running correctly at the new location.
|
||
It must be reachable via network.
|
||
In case you are using BGP because
|
||
\family typewriter
|
||
hyper1234a
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
hyper1234b
|
||
\family default
|
||
are located in different datacenters, ensure that BGP is also controlled
|
||
by your
|
||
\family typewriter
|
||
systemd
|
||
\family default
|
||
unit dependencies, and test it.
|
||
\end_layout
|
||
|
||
\begin_layout Subsection
|
||
Mechanics Layer of Football Operations
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "subsec:Mechanics-Layer-of-Football"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
At the moment, there are two alternative plugins already implemented in
|
||
the Football sub-project (see subdirectory
|
||
\family typewriter
|
||
football/plugins/
|
||
\family default
|
||
).
|
||
Of course, you can implement some further plugins.
|
||
Please put them under GPL, and share them.
|
||
Please contact the author of MARS for inclusion into the official MARS
|
||
release.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
football-cm3.sh
|
||
\family default
|
||
This plugin can be only used at Shared Hosting Linux (ShaHoLin) at 1&1,
|
||
since it is bound to a specific
|
||
\emph on
|
||
proprietary
|
||
\emph default
|
||
instance.
|
||
However, the
|
||
\emph on
|
||
sourcecode
|
||
\emph default
|
||
of the
|
||
\emph on
|
||
plugin
|
||
\emph default
|
||
itself (not the code called by the plugin, e.g.
|
||
over REST interfaces) is under GPL.
|
||
You can (and
|
||
\emph on
|
||
should
|
||
\emph default
|
||
)
|
||
\emph on
|
||
inspect
|
||
\emph default
|
||
the plugin code, and
|
||
\series bold
|
||
learn
|
||
\series default
|
||
how a real-world system (which has grown over some decades and bears a
|
||
lot of history) is actually working at certain points.
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
This plugin is automatically activated when called via the symlink
|
||
\family typewriter
|
||
tetris.sh
|
||
\family default
|
||
instead of directly calling
|
||
\family typewriter
|
||
football.sh
|
||
\family default
|
||
.
|
||
This has historic reasons.
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
football-basic.sh
|
||
\family default
|
||
This plugin uses the new
|
||
\family typewriter
|
||
systemd
|
||
\family default
|
||
interface of
|
||
\family typewriter
|
||
marsadm
|
||
\family default
|
||
for controlling the mechanics.
|
||
See section
|
||
\begin_inset CommandInset ref
|
||
LatexCommand vref
|
||
reference "sec:systemd-Templates"
|
||
|
||
\end_inset
|
||
|
||
.
|
||
You should be familiar with commands like
|
||
\family typewriter
|
||
marsadm set-systemd-unit
|
||
\family default
|
||
.
|
||
Manual handover via
|
||
\family typewriter
|
||
marsadm primary $resource
|
||
\family default
|
||
must be already working (with high reliability
|
||
\begin_inset Formula $\leadsto$
|
||
\end_inset
|
||
|
||
check that any
|
||
\family typewriter
|
||
umount
|
||
\family default
|
||
works everywhere without hangups) before you can start using this plugin
|
||
for
|
||
\family typewriter
|
||
football.sh
|
||
\family default
|
||
.
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
This plugin is automatically activated when calling football.sh.
|
||
It can be deactivated by overriding variable
|
||
\family typewriter
|
||
enable_basic
|
||
\family default
|
||
=0.
|
||
\end_layout
|
||
|
||
\begin_layout Subsubsection
|
||
Configuring and Overriding Variables
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
A detailed list of all available customization options can be obtained via
|
||
|
||
\family typewriter
|
||
./football.sh --help --verbose
|
||
\family default
|
||
.
|
||
Each option is documented by some help text, and you can always see the
|
||
default settings.
|
||
See also section
|
||
\begin_inset CommandInset ref
|
||
LatexCommand vref
|
||
reference "sec:football-help-verbose"
|
||
|
||
\end_inset
|
||
|
||
.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
If you create any new plugin for Football, or if you modify an existing
|
||
one, please follow these standards.
|
||
Try to describe any option as concisely as possible.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Configuring is possible in the following ways, in order of precedence:
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
at the command line via
|
||
\family typewriter
|
||
./football.sh --$variable_name=$value $arguments
|
||
\family default
|
||
.
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
via environment variables, e.g.
|
||
globally via
|
||
\family typewriter
|
||
export $variable_name=$value && ./football.sh $arguments
|
||
\family default
|
||
, or locally via
|
||
\family typewriter
|
||
$variable_name=$value ./football.sh $arguments
|
||
\family default
|
||
.
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
by adding some small
|
||
\family typewriter
|
||
football-*.conf
|
||
\family default
|
||
files into one of the directories
|
||
\family typewriter
|
||
/usr/lib/mars/plugins
|
||
\family default
|
||
|
||
\family typewriter
|
||
/etc/mars/plugins
|
||
\family default
|
||
|
||
\family typewriter
|
||
$script_dir/plugins
|
||
\family default
|
||
|
||
\family typewriter
|
||
$HOME/.mars/plugins
|
||
\family default
|
||
|
||
\family typewriter
|
||
./plugins
|
||
\family default
|
||
, in this order of precedence.
|
||
This list of directories can be modifed externally over the environment
|
||
variable
|
||
\family typewriter
|
||
football_includes
|
||
\family default
|
||
(but not during already running inclusions of
|
||
\family typewriter
|
||
football-*.conf
|
||
\family default
|
||
files).
|
||
\end_layout
|
||
|
||
\begin_layout Subsubsection
|
||
|
||
\family typewriter
|
||
football-basic.sh
|
||
\family default
|
||
Customization
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Here is a brief summary of the most important configuration tasks and options:
|
||
\end_layout
|
||
|
||
\begin_layout Description
|
||
|
||
\family typewriter
|
||
initial_hostname_file
|
||
\family default
|
||
Somehow, the
|
||
\family typewriter
|
||
football-basic.sh
|
||
\family default
|
||
plugin must know the hostnames of your pool.
|
||
Once Football is working, the hostname will be
|
||
\emph on
|
||
automatically
|
||
\emph default
|
||
maintained whenever
|
||
\family typewriter
|
||
marsadm join-cluster
|
||
\family default
|
||
or
|
||
\family typewriter
|
||
marsadm merge-cluster
|
||
\family default
|
||
is executed somewhere.
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
|
||
\begin_inset Graphics
|
||
filename images/lightbulb_brightlit_benj_.png
|
||
lyxscale 12
|
||
scale 7
|
||
|
||
\end_inset
|
||
|
||
For your hardware deployment strategy, this means the following: just deploy
|
||
any new hardware, or remove your old one (after Football has emptied all
|
||
of your former LV resources).
|
||
It does not matter how you are doing this, e.g.
|
||
via OpenStack, or via the proprietary
|
||
\family typewriter
|
||
Schlunix
|
||
\family default
|
||
methods used at ShaHoLin, or whatever.
|
||
Then you have the following options for adding the new machines to the
|
||
Football hostname cache (see variable
|
||
\family typewriter
|
||
hostname_cache
|
||
\family default
|
||
):
|
||
\end_layout
|
||
|
||
\begin_deeper
|
||
\begin_layout Enumerate
|
||
Write the pure hostname(s) into the file as configured with
|
||
\family typewriter
|
||
initial_hostname_file
|
||
\family default
|
||
(by default:
|
||
\family typewriter
|
||
./hostnames.input
|
||
\family default
|
||
).
|
||
Each hostname must be on its own ASCII line.
|
||
Not only these new hosts will be picked up automatically, but also...
|
||
\end_layout
|
||
|
||
\begin_layout Enumerate
|
||
...any further hosts reported anywhere (at the already known hosts) by
|
||
\family typewriter
|
||
marsadm view-cluster-members
|
||
\family default
|
||
,
|
||
\series bold
|
||
transitively
|
||
\series default
|
||
.
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
|
||
\begin_inset Graphics
|
||
filename images/lightbulb_brightlit_benj_.png
|
||
lyxscale 12
|
||
scale 7
|
||
|
||
\end_inset
|
||
|
||
Consequence: if you are running the new
|
||
\family typewriter
|
||
mars0.1b.y
|
||
\family default
|
||
(or newer) branch of MARS, you don't need
|
||
\family typewriter
|
||
marsadm split-cluster
|
||
\family default
|
||
anymore.
|
||
Then you can operate several thousands of machines as a big
|
||
\series bold
|
||
virtual
|
||
\series default
|
||
cluster, even if their storage is local (see
|
||
\family typewriter
|
||
LocalSharding
|
||
\family default
|
||
model described in section
|
||
\begin_inset CommandInset ref
|
||
LatexCommand vref
|
||
reference "subsec:Variants-of-Sharding"
|
||
|
||
\end_inset
|
||
|
||
).
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
|
||
\begin_inset Graphics
|
||
filename images/MatieresCorrosives.png
|
||
lyxscale 50
|
||
scale 17
|
||
|
||
\end_inset
|
||
|
||
Previous versions of MARS, like
|
||
\family typewriter
|
||
mars0.1.y
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
mars0.1a.y
|
||
\family default
|
||
, are not yet scalable at their
|
||
\series bold
|
||
metadata
|
||
\series default
|
||
exchange level.
|
||
Trying to
|
||
\family typewriter
|
||
join-cluster
|
||
\family default
|
||
or
|
||
\family typewriter
|
||
merge-cluster
|
||
\family default
|
||
several tens or even hundreds of machines with those versions will surely
|
||
lead to a disaster.
|
||
Always use
|
||
\family typewriter
|
||
marsadm split-cluster
|
||
\family default
|
||
at those versions, regularly.
|
||
First upgrade to the future
|
||
\family typewriter
|
||
mars0.1b.y
|
||
\family default
|
||
(or later versions) before creating big clusters at
|
||
\emph on
|
||
metadata
|
||
\emph default
|
||
level!
|
||
\end_layout
|
||
|
||
\begin_layout Enumerate
|
||
Use
|
||
\family typewriter
|
||
./football.sh basic_add_host $hostname
|
||
\family default
|
||
for adding a single new host manually.
|
||
Afterwards, the transitive closure of all reachable hosts is computed as
|
||
usual.
|
||
This may also be used for the very first initialization of a fresh Football
|
||
installation, provided you already have a big cluster at metadata level.
|
||
\end_layout
|
||
|
||
\end_deeper
|
||
\begin_layout Standard
|
||
Test the Football mechanics like one of the following example command sequences,
|
||
where it is assumed that
|
||
\family typewriter
|
||
hyper4321a
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
hyper4321b
|
||
\family default
|
||
are already
|
||
\emph on
|
||
newly
|
||
\emph default
|
||
deployed hypervisors having enough local LVM storage, and have been already
|
||
added to the MARS cluster via
|
||
\family typewriter
|
||
marsadm join-cluster
|
||
\family default
|
||
, or have been at least added to
|
||
\family typewriter
|
||
hostname_cache
|
||
\family default
|
||
as explained above:
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
|
||
\family typewriter
|
||
ssh-add; ./football.sh migrate vm4711 hyper4321a hyper4321b
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
|
||
\family typewriter
|
||
ssh-add; ./football.sh migrate vm4711 hyper4321a hyper4321b --screener; ./screener.s
|
||
h attach vm4711
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Check the automatically produced logfile (via
|
||
\family typewriter
|
||
./screener.sh show vm4711
|
||
\family default
|
||
) that Football has automatically determined the old hypervisor where
|
||
\family typewriter
|
||
vm4711
|
||
\family default
|
||
was running before, that it has automatically executed
|
||
\family typewriter
|
||
marsadm merge-cluster
|
||
\family default
|
||
when necessary, and has created the LV replicas at the new hypervisors,
|
||
and has executed some
|
||
\family typewriter
|
||
marsadm join-resource
|
||
\family default
|
||
commands, has automatically waited for MARS fast fullsync to finish, then
|
||
successfully executed an automatic handover to the new primary hypervisor,
|
||
and finally has destructed the old MARS replicas including their old LVs.
|
||
Check that
|
||
\family typewriter
|
||
vm4711
|
||
\family default
|
||
is running correctly at the new hypervisor pair, and that handover between
|
||
the new hypervisor sites
|
||
\family typewriter
|
||
*a
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
*b
|
||
\family default
|
||
is working correctly.
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
A larger group of sysadmins can co-work over a central common control machine
|
||
via ssh agent forwarding (which must be enabled in
|
||
\family typewriter
|
||
/etc/ssh/sshd_config
|
||
\family default
|
||
) in the following way:
|
||
\end_layout
|
||
|
||
\begin_layout Itemize
|
||
At the workstation:
|
||
\family typewriter
|
||
ssh-add; ssh -A football@common-control.mycompany.org
|
||
\family default
|
||
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Then
|
||
\family typewriter
|
||
cd $script_dir
|
||
\family default
|
||
and run your
|
||
\family typewriter
|
||
./football.sh
|
||
\family default
|
||
or
|
||
\family typewriter
|
||
./screener.sh
|
||
\family default
|
||
commands as usual.
|
||
The automatically generated logfiles will be tagged with the
|
||
\emph on
|
||
real
|
||
\emph default
|
||
usernames from your original workstation login, as reported by
|
||
\family typewriter
|
||
ssh-add -l
|
||
\family default
|
||
, even transitively when using ssh agent forwarding.
|
||
Thus you may use a common username like
|
||
\family typewriter
|
||
football
|
||
\family default
|
||
on the common
|
||
\begin_inset Foot
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
Of course, it is also possible to maintain individual accounts for the same
|
||
Unix group, and set
|
||
\family typewriter
|
||
umask
|
||
\family default
|
||
and common directory permissions accordingly, such that the classical group-wis
|
||
e working concept from the 1970s will do the rest.
|
||
This is much more work, but can establish more fine-grained access control.
|
||
Even more sophisticated methods could involve ACLs, but suchalike is probably
|
||
only necessary at extremely high-sensitive installations.
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
control machine.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset Graphics
|
||
filename images/lightbulb_brightlit_benj_.png
|
||
lyxscale 12
|
||
scale 7
|
||
|
||
\end_inset
|
||
|
||
Hint: use
|
||
\family typewriter
|
||
./screener.sh list
|
||
\family default
|
||
(or one of its more specific variants like
|
||
\family typewriter
|
||
./screener.sh list-running
|
||
\family default
|
||
) for determining what's currently going on in a larger group of sysadmins.
|
||
\end_layout
|
||
|
||
\begin_layout Chapter
|
||
\start_of_appendix
|
||
Football Redundancy Diagrams
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "chap:Football-Redundancy-Diagrams"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
The following tables are showing the number of replicas during Football.
|
||
We focus at the common case of starting with 2 replicas, and ending up
|
||
in a total of another 2 replicas at another machines.
|
||
Further cases, involving multiple secondaries, should go analogously.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Active primaries are colored in red.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Backup or shadow replicas (which are present at LVM level, but currently
|
||
not used by MARS) are in parentheses.
|
||
In case of emergency, they could be activated again.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Replicas which are not in parentheses are kept in
|
||
\family typewriter
|
||
UpToDate
|
||
\family default
|
||
state all the time, until they are retired into backup replicas.
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
Parallel
|
||
\family typewriter
|
||
migrate
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This creates two additional replicas in parallel, at the target pair.
|
||
After handover to the new site, and after some configurable waiting time,
|
||
the old replicas are deleted.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Tabular
|
||
<lyxtabular version="3" rows="4" columns="6">
|
||
<features tabularvalignment="middle">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "14col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
migrate
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate x 2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
4
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
After Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
</lyxtabular>
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
Stepwise
|
||
\family typewriter
|
||
migrate
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant is useful for hardware lifecycle.
|
||
The uplink of the old hardware is only loaded with creation of 1 replica
|
||
in migration step 1.
|
||
Step 2 creates then another replica at the new hardware, which should have
|
||
a better replication network (e.g.
|
||
better uplinks and/or better capacity for cross-traffic between datacenters).
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant is selected by parameter
|
||
\family typewriter
|
||
migrate_two_phase=1
|
||
\family default
|
||
.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Tabular
|
||
<lyxtabular version="3" rows="5" columns="6">
|
||
<features tabularvalignment="middle">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "14col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
2-Step
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
migrate
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate 1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
3
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate 2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
4
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
After Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
</lyxtabular>
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
Plain
|
||
\family typewriter
|
||
shrink
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
Here we need to discriminate between replicas with the old size, and the
|
||
new size (which is typically smaller than the old size).
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Tabular
|
||
<lyxtabular version="3" rows="5" columns="7">
|
||
<features tabularvalignment="middle">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "14col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
shrink
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
old_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
new_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\color inherit
|
||
+ (1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Working
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(2)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Finished
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) + 1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(2)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
After Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
</lyxtabular>
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
Full
|
||
\family typewriter
|
||
migrate+shrink
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant is
|
||
\emph on
|
||
almost
|
||
\emph default
|
||
equivalent to
|
||
\family typewriter
|
||
migrate
|
||
\family default
|
||
followed by
|
||
\family typewriter
|
||
shrink
|
||
\family default
|
||
.
|
||
The only difference is that cleanup is done
|
||
\emph on
|
||
later
|
||
\emph default
|
||
.
|
||
This means, more replicas are kept for some longer time.
|
||
Thus this variant is more safe than doing
|
||
\family typewriter
|
||
migrate
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
shrink
|
||
\family default
|
||
separately.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant is selected by parameters
|
||
\family typewriter
|
||
migrate_two_phase=0
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_always_all=1
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_early_cleanup=0
|
||
\family default
|
||
:
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Tabular
|
||
<lyxtabular version="3" rows="7" columns="7">
|
||
<features tabularvalignment="middle">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "14col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
FULL
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
migrate+shrink
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
old_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
new_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate x 2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
4
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\color inherit
|
||
+ (1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
4
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Working
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(4)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Finished
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) + 1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(4)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
After Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
</lyxtabular>
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
There is a variant which does early cleanup, which is roughly equivalent
|
||
to doing a standalone
|
||
\family typewriter
|
||
migrate
|
||
\family default
|
||
followed by a standalone
|
||
\family typewriter
|
||
shrink
|
||
\family default
|
||
.
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant is selected by parameters
|
||
\family typewriter
|
||
migrate_two_phase=0
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_always_all=1
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_early_cleanup=1
|
||
\family default
|
||
.
|
||
It is less safe because it keeps less replicas and is thus less recommended:
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Tabular
|
||
<lyxtabular version="3" rows="8" columns="7">
|
||
<features tabularvalignment="middle">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "14col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
Sequential
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
migrate+shrink
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
old_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
new_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate x 2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
4
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Early Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\color inherit
|
||
+ (1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Working
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(2)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Finished
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) + 1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(2)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
After Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
</lyxtabular>
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
Stepwise
|
||
\family typewriter
|
||
migrate+shrink
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant is useful for hardware lifecycle.
|
||
The uplink of the old hardware is only loaded with creation of 1 replica
|
||
in migration step 1.
|
||
Step 2 creates then another replica at the new hardware, which should have
|
||
a better replication network.
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant is selected by parameters
|
||
\family typewriter
|
||
migrate_two_phase=1
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_always_all=1
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_early_cleanup=0
|
||
\family default
|
||
:
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Tabular
|
||
<lyxtabular version="3" rows="8" columns="7">
|
||
<features tabularvalignment="middle">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "14col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
2-Step
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
migrate+shrink
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
old_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
new_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate 1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
3
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate 2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
4
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\color inherit
|
||
+ (1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
4
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Working
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(4)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Finished
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) + 1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(4)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
After Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
</lyxtabular>
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
This variant can also be combined with early cleanup.
|
||
The result is similar to above.
|
||
The only difference is that the second additional replica is created at
|
||
the new hardware.
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant is selected by parameters
|
||
\family typewriter
|
||
migrate_two_phase=1
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_always_all=0
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_early_cleanup=
|
||
\family default
|
||
1.
|
||
Again, this variant is less safe and therefore less recommended.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
However, it keeps at least 2 (backup) replicas all the time and thus could
|
||
be an alternative when decommissioning of old hardware is time-critical.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Tabular
|
||
<lyxtabular version="3" rows="9" columns="7">
|
||
<features tabularvalignment="middle">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "14col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
2-Step
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
migrate+shrink
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
old_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
new_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate 1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
3
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate 2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
4
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Early Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\color inherit
|
||
+ (1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Working
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(2)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Finished
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) + 1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(2)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
After Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
</lyxtabular>
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
FAST
|
||
\family typewriter
|
||
migrate+shrink
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant tries to keep a balance by not creating too many unnecessary
|
||
replicas and to reduce network traffic.
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
This variant is selected by parameters
|
||
\family typewriter
|
||
migrate_two_phase=0
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_always_all=0
|
||
\family default
|
||
and
|
||
\family typewriter
|
||
migrate_early_cleanup=0
|
||
\family default
|
||
:
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
\align center
|
||
\begin_inset Tabular
|
||
<lyxtabular version="3" rows="7" columns="7">
|
||
<features tabularvalignment="middle">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<column alignment="center" valignment="top">
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "14col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
FAST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
migrate+shrink
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
SRC
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Primary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "10col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
DST
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
Secondary
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
old_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
\begin_inset Box Frameless
|
||
position "t"
|
||
hor_pos "c"
|
||
has_inner_box 1
|
||
inner_pos "t"
|
||
use_parbox 0
|
||
use_makebox 0
|
||
width "12col%"
|
||
special "none"
|
||
height "1in"
|
||
height_special "totalheight"
|
||
thickness "0.4pt"
|
||
separation "3pt"
|
||
shadowsize "4pt"
|
||
framecolor "black"
|
||
backgroundcolor "none"
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
# Replicas
|
||
\begin_inset Newline newline
|
||
\end_inset
|
||
|
||
new_size
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Migrate x 1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
3
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Start
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\color inherit
|
||
+ (1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
3
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Working
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(3)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
Shrink Finished
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(1) +
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
(3)
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
<row>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
After Cleanup
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
\color red
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
1
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
-
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
|
||
\begin_inset Text
|
||
|
||
\begin_layout Plain Layout
|
||
2
|
||
\end_layout
|
||
|
||
\end_inset
|
||
</cell>
|
||
</row>
|
||
</lyxtabular>
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\noindent
|
||
As before, this could
|
||
\emph on
|
||
theoretically
|
||
\emph default
|
||
be combined with early cleanup.
|
||
Such a combination is however not recommended because there is one intermediate
|
||
step where all existing replicas are at the DST primary, and thus this
|
||
one machine must not fail.
|
||
\end_layout
|
||
|
||
\begin_layout Chapter
|
||
Command Documentation for Userspace Tools
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "chap:Command-Documentation-for"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
|
||
\family typewriter
|
||
football.sh --help
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "sec:football-–help"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset ERT
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
|
||
\backslash
|
||
input{football.help}
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
|
||
\family typewriter
|
||
football.sh --help --verbose
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "sec:football-help-verbose"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset ERT
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
|
||
\backslash
|
||
input{football-verbose.help}
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
|
||
\family typewriter
|
||
screener.sh --help
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "sec:screener–help"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset ERT
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
|
||
\backslash
|
||
input{screener.help}
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Section
|
||
|
||
\family typewriter
|
||
screener.sh --help --verbose
|
||
\begin_inset CommandInset label
|
||
LatexCommand label
|
||
name "sec:screener-help-verbose"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset ERT
|
||
status open
|
||
|
||
\begin_layout Plain Layout
|
||
|
||
|
||
\backslash
|
||
input{screener-verbose.help}
|
||
\end_layout
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\begin_layout Standard
|
||
\begin_inset CommandInset include
|
||
LatexCommand input
|
||
preview true
|
||
filename "common-back-matter.lyx"
|
||
|
||
\end_inset
|
||
|
||
|
||
\end_layout
|
||
|
||
\end_body
|
||
\end_document
|