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https://issues.apache.org/jira/browse/AMBARI-17539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Onischuk updated AMBARI-17539:
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Attachment: (was: AMBARI-17539.patch)
> Ambari Agent memory Leak fix.
> -----------------------------
>
> Key: AMBARI-17539
> URL: https://issues.apache.org/jira/browse/AMBARI-17539
> Project: Ambari
> Issue Type: Bug
> Reporter: Andrew Onischuk
> Assignee: Andrew Onischuk
> Fix For: 2.4.0
>
> Attachments: AMBARI-17539.patch
>
>
> *Reason of memory leak:*
> Race condition in subprocess python module.
> Due to this race condition at some unlucky cases python garbage collection
> was disabled.
> This usually happened when running alerts, as a bunch of our alerts run shell
> commands and they do it in different threads.
> *Fix for the issue:*
> Synchronizing subprocess is not the best option. Since some people can still
> use it without synchronization not knowing about the issue.
> Also synchronizing will provide some unnecessary slowdown. So for this issue
> the proposed fix is to monkey patch subprocess.gc.isenabled.
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