[Bugs] [Bug 1451248] Brick Multiplexing: On reboot of a node Brick multiplexing feature lost on that node as multiple brick processes get spawned

bugzilla at redhat.com bugzilla at redhat.com
Thu May 18 16:45:32 UTC 2017


https://bugzilla.redhat.com/show_bug.cgi?id=1451248



--- Comment #4 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: https://review.gluster.org/17307 committed in master by Jeff Darcy
(jeff at pl.atyp.us) 
------
commit 13e7b3b354a252ad4065f7b2f0f805c40a3c5d18
Author: Samikshan Bairagya <samikshan at gmail.com>
Date:   Tue May 16 15:07:21 2017 +0530

    glusterd: Don't spawn new glusterfsds on node reboot with brick-mux

    With brick multiplexing enabled, upon a node reboot new bricks were
    not being attached to the first spawned brick process even though
    there wasn't any compatibility issues.

    The reason for this is that upon glusterd restart after a node
    reboot, since brick services aren't running, glusterd starts the
    bricks in a "no-wait" mode. So after a brick process is spawned for
    the first brick, there isn't enough time for the corresponding pid
    file to get populated with a value before the compatibilty check is
    made for the next brick.

    This commit solves this by iteratively waiting for the pidfile to be
    populated in the brick compatibility comparison stage before checking
    if the brick process is alive.

    Change-Id: Ibd1f8e54c63e4bb04162143c9d70f09918a44aa4
    BUG: 1451248
    Signed-off-by: Samikshan Bairagya <samikshan at gmail.com>
    Reviewed-on: https://review.gluster.org/17307
    Reviewed-by: Atin Mukherjee <amukherj at redhat.com>
    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>

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