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all: remove deprecated branch descriptions

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Thomas Schoebel-Theuer 2019-03-15 08:14:45 +01:00 committed by Thomas Schoebel-Theuer
parent 4a23a0e4b4
commit 704c1167d5
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@ -30,7 +30,7 @@ Example: mars0.3alpha*:
Release Conventions / Branches / Tagnames
-----------------------------------------
FLOW OF BUGFIXES: 0.1 -> 0.1a -> 0.1b -> 0.2 -> ...
FLOW OF BUGFIXES: 0.1 -> 0.1a -> ...
mars0.1 series (stable, will go EOL soon):
- Will run in parallel to branch 0.1a for a few
@ -48,64 +48,6 @@ Release Conventions / Branches / Tagnames
- Stable branch: mars0.1a.y
- Stable tagnames: mars0.1astable%02d
mars0.1b series (currently alpha):
This is an _imtermediate_ series between 0.1 and 0.2.
The goal is to improve _scalability_ to thousands of
hosts in one cluster, as well as thousands of resources.
Likely, this intermdiate branch will be merged into 0.2
and then continue development there. When this point
will arrive is uncertain at the moment.
Likely, the stabilization of the new scalability features
will occur together with the 0.2 series.
Reason for this: the rollout strategy at 1&1 to
thousands of machines wants to do small incremental
steps. The risk of directly going to 0.2 in _masses_
is minimized by first rolling out the really necessary
changes, and to postpone those developments which are
currently not yet really needed in mass deployment.
mars0.2 series (currently in beta stage):
Mostly for internal needs of 1&1 (but not limited to that).
- Getting rid of the kernel prepatch! MARS may be built
as an external kernel module for any supported
kernel version. First prototype is only tested for
unaltered 3.2.x vanilla kernel, but compatibility to
further vanilla kernel versions (maybe even
Redhat-specific ones) will follow during the course of
the MARS mars0.2 stable series. The problem is not
compatibility as such, but _testing_ that it really
works. These tests need a lot of time.
=> further arguments for getting to kernel upstream ASAP.
- Improved network throughput by parallel TCP connections
(in particular under packet loss).
Also called "socket bundling".
First benchmarks show an impressive speedup over
highly congested long-distance lines.
- Future-proof updates in the network protocol:
Mixed operation of 32/64bit and/or {big,low}endian
- Support for multi-homed network interfaces.
- Transparent data compression over low bandwidth lines.
Consumes a lot of CPU, therefore only recommended for
low write loads or for desperate network situations.
- Remote device: bypassing iSCSI. In essence,
/dev/mars/mydata can appear at any other cluster member
which doesn't necessarily need any local disks.
- Various smaller features and improvements.
- Unstable tagnames: mars0.2beta%d.%d (current)
- Stable branch: mars0.2.y (already in use for beta)
- Stable tagnames: mars0.2stable%02d (planned)
mars0.3 series (planned):
(some might possibly go to 1.0 series instead)
- Improve replication latency.
- New pseudo-synchronous replication modes.
For the internal needs of database folks at 1&1.
- (Maybe) old test suite could be retired, a new
one is at github.com/schoebel/test-suite
- Unstable tagnames: mars0.3beta%d.%d (planned)
- Stable branch: mars0.3.y (planned)
- Stable tagnames: mars0.3stable%02d (planned)
mars1.0 series (planned):
- Replace symlink tree by transactional status files
(future-proof)
@ -130,16 +72,6 @@ Release Conventions / Branches / Tagnames
necessary for a bugfix, or for an important usability improvement
(such as clearer display of errors, hints for resolving them, etc).
-----------------------------------
Changelog for series 0.2:
(you need to checkout branch mars0.2.y to see any details)
-----------------------------------
Changelog for series 0.1b:
(you need to checkout branch mars0.1b.y to see any details)
-----------------------------------
Changelog for series 0.1a:
(you need to checkout branch mars0.1a.y to see any details)