[Bugs] [Bug 1341069] [geo-rep]: Monitor crashed with [Errno 3] No such process

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1341069



--- Comment #3 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/14563 committed in release-3.8 by Niels de
Vos (ndevos at redhat.com) 
------
commit 04e880a31f641659ebaf310898bbfc221d69e5fd
Author: Aravinda VK <avishwan at redhat.com>
Date:   Tue May 24 14:13:29 2016 +0530

    geo-rep: Handle Worker kill gracefully if worker already died

    If Agent dies for any reason, monitor tries to kill Worker also. But
    if worker is also died then kill command raises error ESRCH: No such
    process.

    [2016-05-23 16:49:33.903965] I [monitor(monitor):326:monitor] Monitor:
        Changelog Agent died, Aborting Worker(/bricks/brick0/master_brick0)
    [2016-05-23 16:49:33.904535] E
[syncdutils(monitor):276:log_raise_exception]
        <top>: FAIL:
    Traceback (most recent call last):
      File "/usr/libexec/glusterfs/python/syncdaemon/syncdutils.py", line 306
in
      twrap
        tf(*aa)
      File "/usr/libexec/glusterfs/python/syncdaemon/monitor.py", line 393, in
      wmon
         slave_host, master)
      File "/usr/libexec/glusterfs/python/syncdaemon/monitor.py", line 327, in
      monitor
         os.kill(cpid, signal.SIGKILL)
         OSError: [Errno 3] No such process

    With this patch, monitor will gracefully handle if worker is already died.

    > Change-Id: I3ae5f816a3a197343b64540cf46f5453167fb660
    > Signed-off-by: Aravinda VK <avishwan at redhat.com>
    > BUG: 1339472
    > Reviewed-on: http://review.gluster.org/14512
    > Smoke: Gluster Build System <jenkins at build.gluster.com>
    > NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    > Reviewed-by: Kotresh HR <khiremat at redhat.com>
    > CentOS-regression: Gluster Build System <jenkins at build.gluster.com>
    (cherry picked from commit 4f4a94a35a24d781f3f0e584a8cb59c019e50d6f)

    Change-Id: I3ae5f816a3a197343b64540cf46f5453167fb660
    Signed-off-by: Aravinda VK <avishwan at redhat.com>
    BUG: 1341069
    Reviewed-on: http://review.gluster.org/14563
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Niels de Vos <ndevos at redhat.com>
    Smoke: Gluster Build System <jenkins at build.gluster.com>

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