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https://issues.apache.org/jira/browse/HADOOP-18324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17686670#comment-17686670
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ASF GitHub Bot commented on HADOOP-18324:
-----------------------------------------
omalley commented on PR #5369:
URL: https://github.com/apache/hadoop/pull/5369#issuecomment-1424579281
Strong -1
You are reintroducing a really bad bug that brought down our NN's in
production for a race condition that we've only seen in unit tests. My PR for
the race condition should fix the issue.
> Interrupting RPC Client calls can lead to thread exhaustion
> -----------------------------------------------------------
>
> Key: HADOOP-18324
> URL: https://issues.apache.org/jira/browse/HADOOP-18324
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 3.4.0, 2.10.2, 3.3.3
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Priority: Critical
> Labels: pull-request-available
> Fix For: 3.4.0, 3.3.5, 2.10.3
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> Currently the IPC client creates a boundless number of threads to write the
> rpc request to the socket. The NameNode uses timeouts on its RPC calls to the
> Journal Node and a stuck JN will cause the NN to create an infinite set of
> threads.
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