Improve the glossary entry "Ceph Manager" by correcting the grammar and
properly linking to the "Ceph Manager" section of the Architecture
Guide.
Signed-off-by: Zac Dover <zac.dover@gmail.com>
This commit updates link to the research paper that announces and
explains the CRUSH algorithm. This link was broken in the migration from
the old Ceph website to ceph.io.
Signed-off-by: Zac Dover <zac.dover@gmail.com>
This commit removes similar but distinct entries for the following:
* CephFS
* Ceph Client
Removal of a glossary term that is referred to in the body of the
documentation suite requires the alteration of the text string
that refers to the glossary term. Alterations of this kind have
been made to doc/architecture.rst and doc/rados/api/index.rst.
Signed-off-by: Zac Dover <zac.dover@gmail.com>
Address tracker 23443
Signed-off-by: Anthony D'Atri <anthony.datri@gmail.com>
doc: object -> file -> disk is wrong for bluestore
Signed-off-by: Anthony D'Atri <anthony.datri@gmail.com>
RTD does not support installing system packages, the only ways to install
dependencies are setuptools and pip. while ditaa is a tool written in
Java. so we need to find a native python tool allowing us to render ditaa
images. plantweb is able to the web service for rendering the ditaa
diagram. so let's use it as a fallback if "ditaa" is not around.
also start a new line after the directive, otherwise planweb server will
return 500 at seeing the diagram.
Signed-off-by: Kefu Chai <kchai@redhat.com>
In erasure coding section under Architecture, there is a mention of k = 2 + M =1 for
number of data copies and redundancy copies respectively, which is a bit ambiguous.
The proposal is to change to k = 2, M = 1 as the + sign is not needed here.
Signed-off-by: Nag Pavan Chilakam <nagpavan.chilakam@gmail.com>
Let the other docs link Ceph Filesystem glossary from outside.
If the user wants then let him visit the Ceph Filesystem doc(s)
from the glossary.
Signed-off-by: Jos Collin <jcollin@redhat.com>
Since kraken, Ceph enforces a 1:1 correspondence between CRUSH ruleset and
CRUSH rule, so effectively ruleset and rule are the same thing, although
the term "ruleset" still survives - notably in the CRUSH rule itself, where it
effectively denotes the number of the rule.
This commit updates the documentation to more faithfully reflect the current
state of the code.
Fixes: http://tracker.ceph.com/issues/20559
Signed-off-by: Nathan Cutler <ncutler@suse.com>
This mostly is just removing the commands from the man page ceph(1). I
left the legacy section in doc/cephfs/administration.rst as-is.
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
Description:- When write is completed successfully and previous chunks of previous version of object is removed - log should show 1,2 and no need of indicating - write operation.
Signed-off-by: Rachana Patel <rachana83.patel@gmail.com>
In this example of a write of v2 of the object being interrupted, OSD2
would never have any version of the D1 chunk. It only has the old v1
version of the D2 chunk.
Signed-off-by: Adam Spiers <aspiers@suse.com>
To Calculate PG ID, if I didn't get it wrong, CRUSH calculates the hash modulo
the number of PGs instead of OSDs, according to osd/osd_types.cc:963
ceph_stable_mod(pg.ps(), pg_num, pg_num_mask).
Signed-off-by: Kai Zhang <zakir.exe@gmail.com>
