[Bugs] [Bug 1289916] Client will not get notified about changes to volume if node used while mounting goes down

bugzilla at redhat.com bugzilla at redhat.com
Tue Apr 12 12:14:27 UTC 2016


--- Comment #5 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/13002 committed in master by Jeff Darcy
(jdarcy at redhat.com) 
commit 05bc8bfd2a11d280fe0aaac6c7ae86ea5ff08164
Author: Prasanna Kumar Kalever <prasanna.kalever at redhat.com>
Date:   Thu Mar 17 13:50:31 2016 +0530

    glusterd-client: switch volfile server incase existing connection breaks

    Currently, say we have 10 Node gluster volume, and mounted it using
    Node 1 (N1) as volfile server and the rest as backup volfile servers

    $ mount -t glusterfs -obackup-volfile-servers=<N2>:<N3>:...:<N10> <N1>:/vol

    if N1 goes down we still be able to access the same mount point,
    but the problem is that if we add or remove bricks to the volume
    whoes volfile server is down in our case N1, that info will not be
    passed to client, because connection between glusterfs and glusterd (of N1)
    will be disconnected due to which we cannot store files to the newly
    added bricks until N1 comes back

    If N1 goes down iterate through the nodes specified in
    backup-volfile-servers list and try to establish the connection between
    glusterfs and glsuterd, hence we don't really have to wait
    until N1 comes back to store files in newly added bricks that are
    successfully added when N1 was down

    Change-Id: I653c9f081a84667630608091bc243ffc3859d5cd
    BUG: 1289916
    Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever at redhat.com>
    Reviewed-on: http://review.gluster.org/13002
    Tested-by: Prasanna Kumar Kalever <pkalever at redhat.com>
    Smoke: Gluster Build System <jenkins at build.gluster.com>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Poornima G <pgurusid at redhat.com>
    Reviewed-by: Jeff Darcy <jdarcy at redhat.com>

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