[Bugs] [Bug 1335822] Revert "features/shard: Make o-direct writes work with sharding: http://review.gluster.org/#/c/13846/"

bugzilla at redhat.com bugzilla at redhat.com
Sat May 14 14:09:34 UTC 2016


https://bugzilla.redhat.com/show_bug.cgi?id=1335822



--- Comment #2 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/14330 committed in release-3.8 by Niels de
Vos (ndevos at redhat.com) 
------
commit c9016f1430701518725d8c20f8019bfba1644466
Author: Krutika Dhananjay <kdhananj at redhat.com>
Date:   Fri May 13 15:18:22 2016 +0530

    Revert "features/shard: Make o-direct writes work with sharding"

            Backport of: http://review.gluster.org/#/c/14328/

    This reverts commit c272c71391cea9db817f4e7e38cfc25a7cff8bd5.

    This is for two reasons:
    1) It introduces high fop latencies
    2) Even with the patch, there is no true odirect behavior since the
       workaround in the patch doesn't reduce the caching done in kernel's
       page cache as far as writes on anon fds associated with individual
       shards is concerned.

    Change-Id: I4137816a8bff9f0f77d42041a2d17e63dff82b5d
    BUG: 1335822
    Signed-off-by: Krutika Dhananjay <kdhananj at redhat.com>
    Reviewed-on: http://review.gluster.org/14330
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.com>
    Smoke: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Pranith Kumar Karampuri <pkarampu at redhat.com>

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