[Bugs] [Bug 1246052] Deceiving log messages like "Failing STAT on gfid : split-brain observed. [Input/output error]" reported

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1246052



--- Comment #2 from Anand Avati <aavati at redhat.com> ---
COMMIT: http://review.gluster.org/11756 committed in master by Pranith Kumar
Karampuri (pkarampu at redhat.com) 
------
commit 7bec717f8850135368609fccf1b1c697af60c546
Author: Krutika Dhananjay <kdhananj at redhat.com>
Date:   Thu Jul 23 18:08:34 2015 +0530

    cluster/afr: Fix incorrect logging in read transactions

    afr_read_txn_refresh_done() at its entry point can fail for
    reasons like ENOENT/ESTALE but seldom due to EIO, which is something
    _AFR_ would internally generate and not receive in response from
    a child translator. AFR is reporting "split-brain" for _any_
    kind of failure in read txn, of the following kind:

    [2015-07-07 18:04:34.787612] E [MSGID: 108008]
    [afr-read-txn.c:76:afr_read_txn_refresh_done] 0-vol3-replicate-3:
    Failing STAT on gfid 18a973c4-73d3-48b8-942c-33a6f1a8e6b4:
    split-brain observed. [Input/output error]

    This patch fixes such misleading errors.

    To-Do:
    Avoid logging EIO if/when split-brain choice is set.
    Will do that as part of a separate commit.

    Change-Id: Ib513c75168f7026118ad5b3f0b35e9dd498cfe1e
    BUG: 1246052
    Signed-off-by: Krutika Dhananjay <kdhananj at redhat.com>
    Reviewed-on: http://review.gluster.org/11756
    Tested-by: NetBSD Build System <jenkins at build.gluster.org>
    Reviewed-by: Pranith Kumar Karampuri <pkarampu at redhat.com>
    Reviewed-by: Anuradha Talur <atalur at redhat.com>
    Reviewed-by: Ravishankar N <ravishankar at redhat.com>
    Tested-by: Gluster Build System <jenkins at build.gluster.com>

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