[Bugs] [Bug 1288995] [tiering]: Tier daemon crashed on two of eight nodes and lot of "demotion failed" seen in the system

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1288995



--- Comment #3 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/12890 committed in master by Dan Lambright
(dlambrig at redhat.com) 
------
commit 06818a0fd69bb0d6daabde73e5c3cc2661a70854
Author: N Balachandran <nbalacha at redhat.com>
Date:   Mon Dec 7 13:32:57 2015 +0530

    cluster/tier : Fix double free in tier process

    The tier process tries to free ipc_ctr_params twice
    if the syncop_ipc call in tier_process_ctr_query fails.
    ipc_ctr_params is freed when ctr_ipc_in_dict is freed.
    But ctr_ipc_out_dict is NULL when syncop_ipc fails, causing
    GF_FREE to be called on a non-NULL ipc_ctr_params ptr again.

    Change-Id: Ia15f36dfbcd97be5524588beb7caad5cb79efdb4
    BUG: 1288995
    Signed-off-by: N Balachandran <nbalacha at redhat.com>
    Reviewed-on: http://review.gluster.org/12890
    Reviewed-by: Joseph Fernandes
    Tested-by: NetBSD Build System <jenkins at build.gluster.org>
    Tested-by: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Dan Lambright <dlambrig at redhat.com>

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