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https://issues.apache.org/jira/browse/YARN-2314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14172497#comment-14172497
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Wangda Tan commented on YARN-2314:
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[~jlowe],
Thanks for updating the patch, generally it looks very good to me. A minor
suggestion is, I'd suggest to change yarn.client.max-nodemanagers-proxies to
yarn.client.max-cached-nodemanagers-proxies. Because when the user set the
MAX_NM_PROXIES to 0, he/she can still connect to more than 0 NMs, even if the
java docs is very clear, but the name is still a little confusing.
Wangda
> ContainerManagementProtocolProxy can create thousands of threads for a large
> cluster
> ------------------------------------------------------------------------------------
>
> Key: YARN-2314
> URL: https://issues.apache.org/jira/browse/YARN-2314
> Project: Hadoop YARN
> Issue Type: Bug
> Components: client
> Affects Versions: 2.1.0-beta
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Priority: Critical
> Attachments: YARN-2314.patch, disable-cm-proxy-cache.patch,
> nmproxycachefix.prototype.patch
>
>
> ContainerManagementProtocolProxy has a cache of NM proxies, and the size of
> this cache is configurable. However the cache can grow far beyond the
> configured size when running on a large cluster and blow AM address/container
> limits. More details in the first comment.
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