[Bugs] [Bug 1238476] New: Throttle background heals in disperse volumes

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1238476

            Bug ID: 1238476
           Summary: Throttle background heals in disperse volumes
           Product: GlusterFS
           Version: 3.7.2
         Component: disperse
          Assignee: bugs at gluster.org
          Reporter: pkarampu at redhat.com
                CC: bugs at gluster.org, gluster-bugs at redhat.com
        Depends On: 1237381



+++ This bug was initially created as a clone of Bug #1237381 +++

Description of problem:
If the number of background heals increase then the mount can die because of
OOM killers. Number of background heals need to be throttled.

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 Anand Avati on 2015-06-30 22:09:29 EDT ---

REVIEW: http://review.gluster.org/11471 (cluster/ec: Add throttling in
background healing) posted (#1) for review on master by Pranith Kumar Karampuri
(pkarampu at redhat.com)

--- Additional comment from Anand Avati on 2015-06-30 22:09:44 EDT ---

REVIEW: http://review.gluster.org/11472 (cluster/ec: Remove dead code) posted
(#1) for review on master by Pranith Kumar Karampuri (pkarampu at redhat.com)

--- Additional comment from Anand Avati on 2015-06-30 22:09:55 EDT ---

REVIEW: http://review.gluster.org/11473 (cluster/ec: Make background healing
optional behavior) posted (#1) for review on master by Pranith Kumar Karampuri
(pkarampu at redhat.com)

--- Additional comment from Anand Avati on 2015-07-01 13:42:49 EDT ---

REVIEW: http://review.gluster.org/11495 (libglusterfs: Use GF_CALLOC/GF_FREE
instead of CALLOC/FREE) posted (#1) for review on master by Pranith Kumar
Karampuri (pkarampu at redhat.com)

--- Additional comment from Anand Avati on 2015-07-01 15:18:53 EDT ---

COMMIT: http://review.gluster.org/11472 committed in master by Vijay Bellur
(vbellur at redhat.com) 
------
commit c66026b9bf521172f49ce36a5a7b94fae1bbf267
Author: Pranith Kumar K <pkarampu at redhat.com>
Date:   Tue Jun 30 22:09:57 2015 +0530

    cluster/ec: Remove dead code

    Change-Id: I99d7a038f29cebe823e17a8dda40d335441185bc
    BUG: 1237381
    Signed-off-by: Pranith Kumar K <pkarampu at redhat.com>
    Reviewed-on: http://review.gluster.org/11472
    Tested-by: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Xavier Hernandez <xhernandez at datalab.es>
    Tested-by: NetBSD Build System <jenkins at build.gluster.org>

--- Additional comment from Anand Avati on 2015-07-01 20:10:02 EDT ---

COMMIT: http://review.gluster.org/11471 committed in master by Pranith Kumar
Karampuri (pkarampu at redhat.com) 
------
commit fb20db2078dd7fe1a202f8c0c6f8bd7ecc7ff875
Author: Pranith Kumar K <pkarampu at redhat.com>
Date:   Tue Jun 30 18:45:36 2015 +0530

    cluster/ec: Add throttling in background healing

    - 8 parallel heals can happen.
    - 128 heals will wait for their turn
    - Heals will be rejected if 128 heals are already waiting.

    Change-Id: I2e99bf064db7bce71838ed9901a59ffd565ac390
    BUG: 1237381
    Signed-off-by: Pranith Kumar K <pkarampu at redhat.com>
    Reviewed-on: http://review.gluster.org/11471
    Tested-by: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Xavier Hernandez <xhernandez at datalab.es>
    Tested-by: NetBSD Build System <jenkins at build.gluster.org>


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1237381
[Bug 1237381] Throttle background heals in disperse volumes
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