[Bugs] [Bug 1368312] Value of `replica.split-brain-status' attribute of a directory in metadata split-brain in a dist-rep volume reads that it is not in split-brain
bugzilla at redhat.com
bugzilla at redhat.com
Mon Sep 12 07:38:33 UTC 2016
https://bugzilla.redhat.com/show_bug.cgi?id=1368312
--- Comment #10 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: http://review.gluster.org/15201 committed in master by Raghavendra G
(rgowdapp at redhat.com)
------
commit c4e9ec653c946002ab6d4c71ee8e6df056438a04
Author: Mohit Agrawal <moagrawa at redhat.com>
Date: Fri Aug 19 10:33:50 2016 +0530
dht: "replica.split-brain-status" attribute value is not correct
Problem: In a distributed-replicate volume attribute
"replica.split-brain-status" value does not display split-brain
condition though directory is in split-brain.
If directory is in split brain on mutiple replica-pairs
it does not show full list of replica pairs.
Solution: Update the dht_aggregate code to aggregate the xattr
value in this specific condition.
Fix: 1) function getChoices returns the choices from split-brain
status string.
2) function add_opt adding the choices to local buffer to
store in dictionary
3) For the key "replica.split-brain-status" function
dht_aggregate
call dht_aggregate_split_brain_xattr to prepare the list.
Test: To verify the patch followed below steps
1) Create a distributed replica volume and create mount point
2) Stop heal daemon
3) Touch file and directories on mount point
mkdir test{1..5};touch tmp{1..5}
4) Down brick process on one of the replica set
pkill -9 glusterfsd
5) Change permission of dir on mount point
chmod 755 test{1..5}
6) Restart brick process on node with force option
7) kill brick process on other node in same replica set
8) Change permission of dir again on mount point
chmod 766 test{1..5}
9) Reexecute same step from 4-9 on other replica set also
10) After check heal status on server it will show dir's are
in split brain on all replica sets
11) After check the replica.split-brain-status attr on mount
point it will show wrong status of split brain.
12) After apply the patch the attribute shows correct value.
BUG: 1368312
Change-Id: Icdfd72005a4aa82337c342762775a3d1761bbe4a
Signed-off-by: Mohit Agrawal <moagrawa at redhat.com>
Reviewed-on: http://review.gluster.org/15201
Smoke: Gluster Build System <jenkins at build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp at redhat.com>
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