[Bugs] [Bug 1257076] DHT-rebalance: rebalance status shows failed when replica pair bricks are brought down in distrep volume while re-name of files going on

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1257076



--- Comment #10 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/12013 committed in master by Raghavendra G
(rgowdapp at redhat.com) 
------
commit a53c5c8e322e30b865b7c69aa9558474e033c89a
Author: Susant Palai <spalai at redhat.com>
Date:   Wed Aug 26 04:49:29 2015 -0400

    cluster/dht/rebalance: rebalance failure handling

    At current state rebalance aborts basically on any failure
    like fix-layout of a directory, readdirp, opendir etc. Unless it is
    not a remove-brick process we can ignore these failures.

    Major impact:  Any failure in the gf_defrag_process_dir means there
    are files left unmigrated in the directory.

    Fix-layout(setxattr) failure will impact it's child subtree i.e.
    the child subtree will not be rebalanced.

    Settle-hash (commit-hash)failure will trigger lookup_everywhere for
    immediate children until the next commit-hash.

    Note: Remove-brick opertaion is still sensitive to any kind of failure.

    Change-Id: I08ab71909bc832f03cc1517172525376f7aed14a
    BUG: 1257076
    Signed-off-by: Susant Palai <spalai at redhat.com>
    Reviewed-on: http://review.gluster.org/12013
    Tested-by: NetBSD Build System <jenkins at build.gluster.org>
    Reviewed-by: Raghavendra G <rgowdapp at redhat.com>

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