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https://issues.apache.org/jira/browse/YARN-9437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16833205#comment-16833205
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qiuliang commented on YARN-9437:
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Hi,[~eepayne],[~cheersyang],Could you please check my earlier comment and share
your thoughts.
Thank you.
> RMNodeImpls occupy too much memory and causes RM GC to take a long time
> -----------------------------------------------------------------------
>
> Key: YARN-9437
> URL: https://issues.apache.org/jira/browse/YARN-9437
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.9.1
> Reporter: qiuliang
> Priority: Minor
> Attachments: 1.png, 2.png, 3.png, YARN-9437-v1.txt
>
>
> We use hadoop-2.9.1 in our production environment with 1600+ nodes. 95.63% of
> RM memory is occupied by RMNodeImpl. Analysis of RM memory found that each
> RMNodeImpl has approximately 14M. The reason is that there is a 130,000+
> completedcontainers in each RMNodeImpl that has not been released.
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