[Bugs] [Bug 1410072] New: Fix failure of split-brain-favorite-child-policy.t in CentOS7

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1410072

            Bug ID: 1410072
           Summary: Fix failure of split-brain-favorite-child-policy.t in
                    CentOS7
           Product: GlusterFS
           Version: 3.9
         Component: replicate
          Keywords: Triaged
          Assignee: bugs at gluster.org
          Reporter: ravishankar at redhat.com
                CC: bugs at gluster.org
        Depends On: 1408757



+++ This bug was initially created as a clone of Bug #1408757 +++

Description of problem:

Detailed in https://bugzilla.redhat.com/show_bug.cgi?id=1408660#c2

--- Additional comment from Worker Ant on 2016-12-27 00:44:42 EST ---

REVIEW: http://review.gluster.org/16288 (tests: Fix
split-brain-favorite-child-policy.t failures) posted (#1) for review on master
by Ravishankar N (ravishankar at redhat.com)

--- Additional comment from Worker Ant on 2016-12-27 01:36:36 EST ---

REVIEW: http://review.gluster.org/16288 (tests: Fix
split-brain-favorite-child-policy.t failures) posted (#2) for review on master
by Ravishankar N (ravishankar at redhat.com)

--- Additional comment from Worker Ant on 2016-12-27 07:21:57 EST ---

REVIEW: http://review.gluster.org/16288 (tests: Fix
split-brain-favorite-child-policy.t failures) posted (#3) for review on master
by Ravishankar N (ravishankar at redhat.com)

--- Additional comment from Worker Ant on 2016-12-29 19:30:46 EST ---

REVIEW: http://review.gluster.org/16288 (tests: Fix
split-brain-favorite-child-policy.t failures) posted (#4) for review on master
by Ravishankar N (ravishankar at redhat.com)

--- Additional comment from Worker Ant on 2017-01-03 01:13:56 EST ---

COMMIT: http://review.gluster.org/16288 committed in master by Pranith Kumar
Karampuri (pkarampu at redhat.com) 
------
commit 76fff8cb2a164b596ca67e65c99623f5b68361fd
Author: Ravishankar N <ravishankar at redhat.com>
Date:   Thu Dec 29 12:10:00 2016 +0000

    tests: Fix split-brain-favorite-child-policy.t failures

    Problem:
    In CentOS-7, the file was receving an extra removexattr(security.ima)
    FOP which changed its ctime, breaking the assumption that a particular
brick
    had the latest ctime based on the writevs done in the .t

    Fix:
    1. Compare the ctime of both files in the backend and pick the one with
    the latest ctime for the fav-child policy. Also unmount the volume
    before comparing, to avoid any further FOPS on the file that
    can possibly modify the timestamps.

    2. Added floating point handling in stat function. Thanks to Pranith for
    the helping debugging the regex.

    Change-Id: I06041a0f39a29d2593b867af8685d65c7cd99150
    BUG: 1408757
    Signed-off-by: Ravishankar N <ravishankar at redhat.com>
    Reviewed-on: http://review.gluster.org/16288
    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: Pranith Kumar Karampuri <pkarampu at redhat.com>


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1408757
[Bug 1408757] Fix failure of split-brain-favorite-child-policy.t in CentOS7
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