[Bugs] [Bug 1265892] New: Data Tiering : Writes to a file being promoted/demoted are missing once the file migration is complete

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1265892

            Bug ID: 1265892
           Summary: Data Tiering : Writes to a file being promoted/demoted
                    are missing once the file migration is complete
           Product: GlusterFS
           Version: 3.7.4
         Component: tiering
          Assignee: bugs at gluster.org
          Reporter: nbalacha at redhat.com
        QA Contact: bugs at gluster.org
                CC: bugs at gluster.org
        Depends On: 1254428



+++ This bug was initially created as a clone of Bug #1254428 +++

Description of problem:

Any data appended to a file while a file promotion/demotion is in progress will
be lost once the migration is over

How reproducible:
Always

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


How reproducible:


Steps to Reproduce:
1. Create a file on a tiered that is large enough to ensure that the file takes
some time to be migrated.
2. While the file is being promoted/demoted, write some data to the file from a
FUSE mount point.
3. Check that the data written in step 2 is present once the promotion/demotion
is complete

Actual results:
The data written to the file is missing

Expected results:
The data written to the file should be present.

Additional info:


--- Additional comment from Vijay Bellur on 2015-09-08 06:44:30 EDT ---

REVIEW: http://review.gluster.org/12090 (cluster/tier: Handle FOPs on files
being migrated) posted (#4) for review on master by N Balachandran
(nbalacha at redhat.com)


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1254428
[Bug 1254428] Data Tiering : Writes to a file being promoted/demoted are
missing once the file migration is complete
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