[Bugs] [Bug 1394634] errors appear in brick and nfs logs and getting stale files on NFS clients

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1394634



--- Comment #2 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: https://review.gluster.org/15839 committed in release-3.9 by Niels de
Vos (ndevos at redhat.com) 
------
commit cce1e4c2b96bac9c496565546045a6cebec52afe
Author: Mohammed Rafi KC <rkavunga at redhat.com>
Date:   Tue Sep 27 19:01:48 2016 +0530

    nfs: revalidate lookup converted to fresh lookup

    Backport of http://review.gluster.org/15580

    when an inode ctx is missing for a linked inode the revalidate
    lookups are converted to fresh.

    This could result in sending ESTALE when the gfid are recreated

    We are not able to reproduce the issue with normal setup, most part of
    RCA was done with code reading.

    Possible scenario in which  this bug can reproduce,
    Delete a file and recreate a new file with same name, at the same time
    from another client process try to list/or access the file.

    In this case the second client may throw an ESTALE error for such files

    Thanks to Soumya and Pranith for doing the complete RCA

    >Change-Id: I73992a65844b09a169cefaaedc0dcfb129d66ea1
    >BUG: 1379720
    >Signed-off-by: Mohammed Rafi KC <rkavunga at redhat.com>
    >Reviewed-on: http://review.gluster.org/15580
    >NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    >CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
    >Smoke: Gluster Build System <jenkins at build.gluster.org>
    >Reviewed-by: soumya k <skoduri at redhat.com>
    >Reviewed-by: Kaleb KEITHLEY <kkeithle at redhat.com>
    Signed-off-by: Mohammed Rafi KC <rkavunga at redhat.com>

    Change-Id: I44c3770fb07e84183f8bc6eceb533efbc67fb67f
    BUG: 1394634
    Signed-off-by: Mohammed Rafi KC <rkavunga at redhat.com>
    Reviewed-on: https://review.gluster.org/15839
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
    Reviewed-by: Niels de Vos <ndevos at redhat.com>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>

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