Bug 1220154 - [scale] vdsm runs potential memory leak
Summary: [scale] vdsm runs potential memory leak
Keywords:
Status: CLOSED DUPLICATE of bug 1158108
Alias: None
Product: Red Hat Enterprise Virtualization Manager
Classification: Red Hat
Component: vdsm
Version: 3.5.1
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
: 3.5.3
Assignee: Yaniv Bronhaim
QA Contact: Eldad Marciano
URL:
Whiteboard: infra
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-05-10 13:44 UTC by Eldad Marciano
Modified: 2016-02-10 19:29 UTC (History)
10 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-05-14 13:08:30 UTC
oVirt Team: Infra
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
oVirt gerrit 40134 0 None None None Never

Description Eldad Marciano 2015-05-10 13:44:02 UTC
Description of problem:
potential leak level discovered during a CHO scale test monitor.
the leak is minor and readable by overall memory usage \ vdsm pid memory usage graph's.
~300mb leaking during the time.
further investigation required using advanced python profilers.


please find more detailed report + graph's at mojo page.

Version-Release number of selected component (if applicable):
vdsm-4.16.12.1-3.el6ev.x86_64 (vt14.3)

How reproducible:
100%

Steps to Reproduce:
1. run 50 vms or more for 48 hours (idle vms).
2. expect growing at the memory usage.


Actual results:
growing at the memory usage monitor

Expected results:
stable memory usage once the guests are up and running and do not perform any kind if activity.


Additional info:

Comment 3 Dan Kenigsberg 2015-05-11 15:07:09 UTC
This is most like a dup of bug 1158108, as the fixing patch is included only in v4.16.15.

The memory leaked by bug 1158108 is proportional to the number of network devices on the host, tap devices (=vNICs) included.

Would yo please retest with rhev-3.5.3 ?

Comment 4 Oved Ourfali 2015-05-12 07:46:04 UTC
(In reply to Dan Kenigsberg from comment #3)
> This is most like a dup of bug 1158108, as the fixing patch is included only
> in v4.16.15.
> 
> The memory leaked by bug 1158108 is proportional to the number of network
> devices on the host, tap devices (=vNICs) included.
> 
> Would yo please retest with rhev-3.5.3 ?

Dan - The patch is merged. Shall I move it to MODIFIED, or you moved it to POST for a specific reason?

Comment 5 Eldad Marciano 2015-05-14 08:06:48 UTC
patch 40134 applied on 3.5 setup. 
i ran a 8 hours test, ans it still not clear if the patch fix the leak.

next step: 
run 48h CHO tets.


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