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Bug 1390705 - multipathd rbd checker uses too much memory
Summary: multipathd rbd checker uses too much memory
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: device-mapper-multipath
Version: 7.3
Hardware: Unspecified
OS: Unspecified
high
unspecified
Target Milestone: rc
: ---
Assignee: Mike Christie
QA Contact: Lin Li
URL:
Whiteboard:
Depends On:
Blocks: 1379890
TreeView+ depends on / blocked
 
Reported: 2016-11-01 17:16 UTC by Mike Christie
Modified: 2021-09-03 12:05 UTC (History)
11 users (show)

Fixed In Version:
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Last Closed: 2017-01-04 21:40:19 UTC
Target Upstream Version:
Embargoed:

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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.
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