[Bugs] [Bug 1376685] New: Introduce graceful mode in stop-all-gluster-processes.sh

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1376685

            Bug ID: 1376685
           Summary: Introduce graceful mode in
                    stop-all-gluster-processes.sh
           Product: Red Hat Gluster Storage
           Version: 3.1
         Component: unclassified
          Assignee: amukherj at redhat.com
          Reporter: prasanna.kalever at redhat.com
        QA Contact: rhinduja at redhat.com
                CC: amukherj at redhat.com, bugs at gluster.org,
                    rhs-bugs at redhat.com, sankarshan at redhat.com,
                    smohan at redhat.com, storage-qa-internal at redhat.com
        Depends On: 1367771



+++ This bug was initially created as a clone of Bug #1367771 +++

Description of problem:
Currently all of brick, gsyncd and other glustershd services/processes are
killed without checking for ongoing tasks such as geo-rep, self-heal, rebalance
and etc. which may lead to inconsistency after the node is brought back.


Version-Release number of selected component (if applicable):
3.1

Actual results:
inconsistency in data


Expected results:
Smooth resume with no data inconsistency

COMMIT: http://review.gluster.org/15188 committed in master by Atin Mukherjee
(amukherj at redhat.com) 
------
commit 14b46be09c98c1ef75f55af34ec762b3e34899f1
Author: Prasanna Kumar Kalever <prasanna.kalever at redhat.com>
Date:   Wed Aug 17 17:31:17 2016 +0530

    extras: kill processes gracefully

    Currently all of brick, gsyncd and other glustershd services/processes
    are killed without checking for ongoing tasks such as geo-rep,
    self-heal, rebalance and etc. which may lead to inconsistency after
    the node is brought back.

    This patch introduce an option '-g' which ensures whether all the
    gluster processes are ready (not busy) to be terminated before we
    executing 'kill' on them

    Usage: ./extras/stop-all-gluster-processes.sh [-g] [-h]
        options:
        -g  Terminate in graceful mode
        -h  Show this message, then exit

     eg:
      1. ./extras/stop-all-gluster-processes.sh
      2. ./extras/stop-all-gluster-processes.sh -g

    By default, this script executes in force mode, processes are killed
    without checking for ongoing tasks, on specifying '-g' option this
    script works in graceful mode, which returns exitcode if some of gluster
    processes are busy in doing their jobs.

    exitcodes include:
       0       No errors/Success
       64      Rebalance is in progress
       65      Self-Heal is in progress
       66      Tier daemon running on this node
       127     option not found

    Change-Id: I2f924b2bf9f04a81788d0f5604895a42755b33a1
    BUG: 1367771
    Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever at redhat.com>
    Reviewed-on: http://review.gluster.org/15188
    Tested-by: Prasanna Kumar Kalever <pkalever at redhat.com>
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    Reviewed-by: Rajesh Joseph <rjoseph at redhat.com>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
    Reviewed-by: Ravishankar N <ravishankar at redhat.com>
    Reviewed-by: mohammed rafi  kc <rkavunga at redhat.com>
    Reviewed-by: Atin Mukherjee <amukherj at redhat.com>

--- Additional comment from Worker Ant on 2016-08-29 07:55:20 EDT ---

COMMIT: http://review.gluster.org/15187 committed in master by Atin Mukherjee
(amukherj at redhat.com) 
------
commit 87303b77ddbdc29a415acc2c73bfaafa9be10609
Author: Prasanna Kumar Kalever <prasanna.kalever at redhat.com>
Date:   Wed Aug 17 17:47:08 2016 +0530

    extras: kill gsyncd before glusterfsd

    It's a good practice to kill gsyncd before brick process, else we see
    unnecessary loops and logs of bring up the faulty bricks

    Change-Id: I2d2176f2bf5014f3afd622194a8b2d60c86926af
    BUG: 1367771
    Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever at redhat.com>
    Reviewed-on: http://review.gluster.org/15187
    Tested-by: Prasanna Kumar Kalever <pkalever at redhat.com>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    Reviewed-by: Atin Mukherjee <amukherj at redhat.com>
    Reviewed-by: Kotresh HR <khiremat at redhat.com>


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1367771
[Bug 1367771] Introduce graceful mode in stop-all-gluster-processes.sh
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