[Bugs] [Bug 1335821] New: Revert "features/shard: Make o-direct writes work with sharding: http://review.gluster.org/#/c/13846/"

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1335821

            Bug ID: 1335821
           Summary: Revert "features/shard: Make o-direct writes work with
                    sharding: http://review.gluster.org/#/c/13846/"
           Product: GlusterFS
           Version: 3.7.11
         Component: sharding
          Keywords: Triaged
          Assignee: bugs at gluster.org
          Reporter: kdhananj at redhat.com
        QA Contact: bugs at gluster.org
                CC: bugs at gluster.org
        Depends On: 1335818



+++ This bug was initially created as a clone of Bug #1335818 +++

Description of problem:
Revert this patch 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 etc.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

--- Additional comment from Vijay Bellur on 2016-05-13 05:54:26 EDT ---

REVIEW: http://review.gluster.org/14328 (Revert "features/shard: Make o-direct
writes work with sharding") posted (#1) for review on master by Krutika
Dhananjay (kdhananj at redhat.com)


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1335818
[Bug 1335818] Revert "features/shard: Make o-direct writes work with
sharding: http://review.gluster.org/#/c/13846/"
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