summaryrefslogtreecommitdiffstats
path: root/tests/bugs/replicate/bug-1335652.t
Commit message (Collapse)AuthorAgeFilesLines
* cluster/afr : Do post-op in case of symmetric errorsAnuradha Talur2016-05-131-0/+29
In afr_changelog_post_op_now(), if there was any error, meaning op_ret < 0, post-op was not being done even when the errors were symmetric and there were no "failed subvols". Fix: When the errors are symmetric, perform post-op. How was the bug found : In a 1 X 3 volume with shard and write behind on when writes were done into a file with one brick down, the trusted.afr.dirty xattr's value for .shard directory would keep increasing as post op was not done but pre-op was. This incorrectly showed .shard to be in split-brain. RCA: When WB is on, due to multiple writes being sent on offset lying in the same shard, chances are that same shard file will be created more than once with the second one failing with op_ret < 0 and op_errno = EEXIST. As op_ret was negative, afr wouldn't do post-op, leading to no decrement of trusted.afr.dirty xattr. Thus showing .shard directory to be in split-brain. Change-Id: I711bdeaa1397244e6a7790e96f0c84501798fc59 BUG: 1335652 Signed-off-by: Anuradha Talur <atalur@redhat.com> Reviewed-on: http://review.gluster.org/14310 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Ravishankar N <ravishankar@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com>