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https://issues.apache.org/jira/browse/CASSANDRA-5044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13528004#comment-13528004
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T Jake Luciani commented on CASSANDRA-5044:
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This allows us to resize read/write pools without restarting.
It also allows us to go from multi-threaded compaction so single threaded
without restart.
> Allow resizing of threadpools via JMX
> -------------------------------------
>
> Key: CASSANDRA-5044
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5044
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Carl Yeksigian
> Assignee: Carl Yeksigian
> Priority: Minor
> Attachments: 5044.txt
>
>
> Currently changing the size of threadpools is done using the config files. If
> resizing a threadpool, the node needs to be taken offline.
> Adding resizing via JMX allows online tweaking. TPEs allow for moving the
> number of threads up and down; moving down will take effect after a thread in
> the pool becomes idle.
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