Bug 1390705

Summary: multipathd rbd checker uses too much memory
Product: Red Hat Enterprise Linux 7 Reporter: Mike Christie <mchristi>
Component: device-mapper-multipathAssignee: Mike Christie <mchristi>
Status: CLOSED WONTFIX QA Contact: Lin Li <lilin>
Severity: unspecified Docs Contact:
Priority: high    
Version: 7.3CC: agk, agunn, bmarzins, federico, heinzm, kdreyer, mchristi, msnitzer, prajnoha, rcyriac, yizhan
Target Milestone: rc   
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Last Closed: 2017-01-04 21:40:19 UTC Type: Bug
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Bug Blocks: 1379890    

Description Mike Christie 2016-11-01 17:16:23 UTC 
Description of problem:

The ceph rbd checker uses hundreds of MB per image/device. This causes the OOM to kick off on medium sized setups of around 32 - 64 devices.

The problem is the use of a connected rados cluster object per image. This only needs to be per cluster and since we only support 1 cluster we only need the one.


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Comment 6 Mike Christie 2017-01-04 21:40:19 UTC 
We are changing our implementation for 2.2, so we will not need this fix anymore.