[Bugs] [Bug 1161885] New: Possible file corruption on dispersed volumes

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1161885

            Bug ID: 1161885
           Summary: Possible file corruption on dispersed volumes
           Product: GlusterFS
           Version: 3.6.0
         Component: disperse
          Severity: urgent
          Assignee: bugs at gluster.org
          Reporter: xhernandez at datalab.es
                CC: bugs at gluster.org, gluster-bugs at redhat.com



+++ This bug was initially created as a clone of Bug #1161621 +++

Description of problem:

Doing tests while debugging other issues I've seen that some files get
corrupted. Repeating the write sequence used to generate the corrupt file does
not replicate the problem. The issue may be related to an interaction with
other operations. I need more testing.

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


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

--- Additional comment from Anand Avati on 2014-11-08 21:14:01 CET ---

REVIEW: http://review.gluster.org/9079 (ec: Remove O_APPEND from flags on
create and open.) posted (#1) for review on master by Xavier Hernandez
(xhernandez at datalab.es)

--- Additional comment from Xavier Hernandez on 2014-11-08 21:15:40 CET ---

The problem was caused by files opened with O_APPEND flag. This caused bricks
to write on wrong offsets, corrupting the file. The fix solves the problem.

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