[Bugs] [Bug 1254438] New: Tiering: segfault when trying to rename a file

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1254438

            Bug ID: 1254438
           Summary: Tiering: segfault when trying to rename a file
           Product: GlusterFS
           Version: 3.7.3
         Component: tiering
          Keywords: Triaged
          Severity: medium
          Priority: high
          Assignee: bugs at gluster.org
          Reporter: rkavunga at redhat.com
        QA Contact: bugs at gluster.org
                CC: bugs at gluster.org, rgowdapp at redhat.com
        Depends On: 1250828



+++ This bug was initially created as a clone of Bug #1250828 +++

Description of problem:

On a tier volume with both cold and hot tiers as pure distribute, when trying
to move a promoted/demoted file, mount process crashed (if build with debug
enable, other wise assertion failure).

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

mainline

How reproducible:

100%

Steps to Reproduce:
1.create a tier volume (cold and hot tier as pure distribute)
2.create some file on mount point
3.let some files promote/demote
4.rename a promoted/demoted file

Actual results:

mount crash

Expected results:

mount should not crash

Additional info:

binary's are build with --debug-enable flag

--- Additional comment from Mohammed Rafi KC on 2015-08-06 02:08:32 EDT ---

when creating a link file, dictionary used for passing xattributes contains
some keys used for lookup.

--- Additional comment from Anand Avati on 2015-08-06 02:12:19 EDT ---

REVIEW: http://review.gluster.org/11838 (dht/tiering : create new dictionary
during migration) posted (#2) for review on master by mohammed rafi  kc
(rkavunga at redhat.com)

--- Additional comment from Anand Avati on 2015-08-06 09:01:50 EDT ---

COMMIT: http://review.gluster.org/11838 committed in master by Raghavendra G
(rgowdapp at redhat.com) 
------
commit a3faffb259d5288907fac33a2822a8f61c3e86fe
Author: Mohammed Rafi KC <rkavunga at redhat.com>
Date:   Wed Aug 5 19:34:01 2015 +0530

    dht/tiering : create new dictionary during migration

    To avoid setting wrong xattr during creating link file

    Change-Id: Iad8de3521eae17e510035ed42e3e01933d647096
    BUG: 1250828
    Signed-off-by: Mohammed Rafi KC <rkavunga at redhat.com>
    Reviewed-on: http://review.gluster.org/11838
    Reviewed-by: N Balachandran <nbalacha at redhat.com>
    Tested-by: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Dan Lambright <dlambrig at redhat.com>
    Reviewed-by: Raghavendra G <rgowdapp at redhat.com>


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1250828
[Bug 1250828] Tiering: segfault when trying to rename a file
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