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https://issues.apache.org/jira/browse/CASSANDRA-11713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16140112#comment-16140112
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Paulo Motta commented on CASSANDRA-11713:
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Hmm the context I proposed this was during investigation of CASSANDRA-11363,
which was solved, so I think it's fine to close this for now and reopen in case
another need arises to investigate hairy conditions on the NTR pool.
> Add ability to log thread dump when NTR pool is blocked
> -------------------------------------------------------
>
> Key: CASSANDRA-11713
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11713
> Project: Cassandra
> Issue Type: Improvement
> Components: Observability
> Reporter: Paulo Motta
> Assignee: Paulo Motta
> Priority: Minor
> Attachments: ThreadDumper.png
>
>
> Thread dumps are very useful for troubleshooting Native-Transport-Requests
> contention issues like CASSANDRA-11363 and CASSANDRA-11529.
> While they could be generated externally with {{jstack}}, sometimes the
> conditions are transient and it's hard to catch the exact moment when they
> happen, so it could be useful to generate and log them upon user request when
> certain internal condition happens.
> I propose adding a {{logThreadDumpOnNextContention}} flag to {{SEPExecutor}}
> that when enabled via JMX generates and logs a single thread dump on the
> system log when the thread pool queue is full.
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