[
https://issues.apache.org/jira/browse/YARN-11588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17773248#comment-17773248
]
ASF GitHub Bot commented on YARN-11588:
---------------------------------------
slfan1989 commented on PR #6159:
URL: https://github.com/apache/hadoop/pull/6159#issuecomment-1752786105
@jchanggg I think we shouldn't modify this value. Instead, we should ensure
a minimum number of core threads.
> Fix uncleaned threads in YARN Federation interceptor threadpool
> ---------------------------------------------------------------
>
> Key: YARN-11588
> URL: https://issues.apache.org/jira/browse/YARN-11588
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Jeffrey Chang
> Priority: Major
> Labels: pull-request-available
>
> In YARN Federation a new interceptor is generated for each new user that
> calls YARN Router. This also generates a threadpool which is used to call
> YARN RM. However, when the call is finished the threadpool threads never
> exits, causing the interceptor object for the user to never be cleaned up.
> This causes an issue when the number of users is large in the YARN cluster,
> as the number of idle, uncleaned thread can reach # of users calling router
> times number of active core threads in thread pool. This causes performance
> issues in router due to too many idle threads.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org
