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https://issues.apache.org/jira/browse/CASSANDRA-15277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16916085#comment-16916085
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Jon Meredith commented on CASSANDRA-15277:
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I went ahead and changed SEPExecutor to understand negative permits as resizing
and give up their work permits, added support for nodetool to get/set
concurrency, tried to clear up confusion with the JMXEnabledThreadPoolExecutor
pool size getters/setters and cleaned up the unnecessary
JMXConfigurableThreadPoolExecutor as it doesn't add anything to
JMXEnabledPoolExecutor any more.
> Make it possible to resize concurrent read / write thread pools at runtime
> --------------------------------------------------------------------------
>
> Key: CASSANDRA-15277
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15277
> Project: Cassandra
> Issue Type: Improvement
> Components: Local/Other
> Reporter: Jon Meredith
> Assignee: Jon Meredith
> Priority: Normal
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> To better mitigate cluster overload the executor services for various stages
> should be configurable at runtime (probably as a JMX hot property).
> Related to CASSANDRA-5044, this would add the capability to resize to
> multiThreadedLowSignalStage pools based on SEPExecutor.
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