Bug 1330353 - [Tiering]: promotion of files may not be balanced on distributed hot tier when promoting files with size as that of max.mb
Summary: [Tiering]: promotion of files may not be balanced on distributed hot tier whe...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: GlusterFS
Classification: Community
Component: tiering
Version: mainline
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Joseph Elwin Fernandes
QA Contact: bugs@gluster.org
URL:
Whiteboard:
Depends On: 1328721
Blocks: 1332138
TreeView+ depends on / blocked
 
Reported: 2016-04-26 00:47 UTC by Joseph Elwin Fernandes
Modified: 2016-06-20 00:01 UTC (History)
8 users (show)

Fixed In Version: glusterfs-3.8rc2
Doc Type: Bug Fix
Doc Text:
Clone Of: 1328721
: 1332138 (view as bug list)
Environment:
Last Closed: 2016-06-16 14:04:21 UTC
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Embargoed:

Attachments (Terms of Use)

Comment 1 Vijay Bellur 2016-04-26 00:50:53 UTC 
REVIEW: http://review.gluster.org/14068 (tier/migrator: Fetch the next query file for the next cycle) posted (#1) for review on master by Joseph Fernandes
Comment 2 Vijay Bellur 2016-04-27 00:09:45 UTC 
REVIEW: http://review.gluster.org/14068 (tier/migrator: Fetch the next query file for the next cycle) posted (#2) for review on master by Joseph Fernandes
Comment 3 Vijay Bellur 2016-04-27 00:13:18 UTC 
REVIEW: http://review.gluster.org/14068 (tier/migrator: Fetch the next query file for the next cycle) posted (#3) for review on master by Joseph Fernandes
Comment 4 Vijay Bellur 2016-04-30 14:30:53 UTC 
COMMIT: http://review.gluster.org/14068 committed in master by Dan Lambright (dlambrig) 
------
commit 0d23f5207337fa54be57939eb8d70fe835d4658b
Author: Joseph Fernandes <josferna>
Date:   Tue Apr 26 06:10:16 2016 +0530

    tier/migrator: Fetch the next query file for the next cycle
    
    Problem: When we spawn promote and demote thread, query files
    are build. And only query file with index 0 is picked for migration
    as the first query file. This may not be suitable for scenarios,
    where the file in the query are too big to move in the first cycle,
    as a result file in the other query files always get missed. We need to
    shuffle so that other query files also get a chance.
    
    Fix: Remember the previous first query file and shift it by one index,
    before the migration starts.
    
    Change-Id: I704947bcf4bab6b20b1179a6d9ae4a15a3d51bd9
    BUG: 1330353
    Signed-off-by: Joseph Fernandes <josferna>
    Reviewed-on: http://review.gluster.org/14068
    Tested-by: Joseph Fernandes
    Smoke: Gluster Build System <jenkins.com>
    CentOS-regression: Gluster Build System <jenkins.com>
    Reviewed-by: Dan Lambright <dlambrig>
    Tested-by: Dan Lambright <dlambrig>
    NetBSD-regression: NetBSD Build System <jenkins.org>
Comment 5 Niels de Vos 2016-06-16 14:04:21 UTC 
This bug is getting closed because a release has been made available that should address the reported issue. In case the problem is still not fixed with glusterfs-3.8.0, please open a new bug report.

glusterfs-3.8.0 has been announced on the Gluster mailinglists [1], packages for several distributions should become available in the near future. Keep an eye on the Gluster Users mailinglist [2] and the update infrastructure for your distribution.

[1] http://blog.gluster.org/2016/06/glusterfs-3-8-released/
[2] http://thread.gmane.org/gmane.comp.file-systems.gluster.user
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