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https://issues.apache.org/jira/browse/HADOOP-18324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17561206#comment-17561206
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Owen O'Malley edited comment on HADOOP-18324 at 6/30/22 11:00 PM:
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We had a NameNode taken out with 10k threads of which 9500 were "IPC Parameter
Sending Thread ####".
was (Author: owen.omalley):
We had a NameNode taken out with 10k threads of which 9500 where "IPC Parameter
Sending Thread ####".
> 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
>
> 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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