[Bugs] [Bug 1342903] New: O_DIRECT support for sharding

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1342903

            Bug ID: 1342903
           Summary: O_DIRECT support for sharding
           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: 1342171



+++ This bug was initially created as a clone of Bug #1342171 +++

Description of problem:

This bug is to track work towards making odirect writes and reads work at the
level of individual shards.

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 2016-06-02 11:30:01 EDT ---

REVIEW: http://review.gluster.org/14191 (core, shard: Make shards inherit main
file's O_DIRECT flag if present) posted (#7) for review on master by Krutika
Dhananjay (kdhananj at redhat.com)

--- Additional comment from Vijay Bellur on 2016-06-03 05:32:56 EDT ---

REVIEW: http://review.gluster.org/14191 (core, shard: Make shards inherit main
file's O_DIRECT flag if present) posted (#8) for review on master by Krutika
Dhananjay (kdhananj at redhat.com)

--- Additional comment from Vijay Bellur on 2016-06-03 05:32:59 EDT ---

REVIEW: http://review.gluster.org/14639 (posix, shard: Use page-aligned buffer
for o-direct reads) posted (#1) for review on master by Krutika Dhananjay
(kdhananj at redhat.com)

--- Additional comment from Vijay Bellur on 2016-06-03 06:11:08 EDT ---

REVIEW: http://review.gluster.org/14191 (core, shard: Make shards inherit main
file's O_DIRECT flag if present) posted (#9) for review on master by Krutika
Dhananjay (kdhananj at redhat.com)

--- Additional comment from Vijay Bellur on 2016-06-03 06:11:11 EDT ---

REVIEW: http://review.gluster.org/14639 (posix, shard: Use page-aligned buffer
for o-direct reads) posted (#2) for review on master by Krutika Dhananjay
(kdhananj at redhat.com)

--- Additional comment from Vijay Bellur on 2016-06-03 21:58:14 EDT ---

COMMIT: http://review.gluster.org/14639 committed in master by Pranith Kumar
Karampuri (pkarampu at redhat.com) 
------
commit 9e0cdf1d2393d7bdb0eac019e70dce7c5f4f59c9
Author: Krutika Dhananjay <kdhananj at redhat.com>
Date:   Thu Jun 2 19:45:03 2016 +0530

    posix, shard: Use page-aligned buffer for o-direct reads

    and also make shard_readv_do() pass the correct flags when
    the original fd is opened with O_DIRECT.

    Change-Id: Ic2f8ad900743ed3f7cab56948bcf1358d247a311
    BUG: 1342171
    Signed-off-by: Krutika Dhananjay <kdhananj at redhat.com>
    Reviewed-on: http://review.gluster.org/14639
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    Smoke: Gluster Build System <jenkins at build.gluster.com>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Pranith Kumar Karampuri <pkarampu at redhat.com>


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1342171
[Bug 1342171] O_DIRECT support for sharding
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