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https://issues.apache.org/jira/browse/HBASE-6778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13455432#comment-13455432
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Elliott Clark commented on HBASE-6778:
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Last time I counted we have ~150 threads on a totally un-loaded region server.
The number of context switches that represents is a pretty serious perf impact.
> Deprecate Chore; its a thread per task when we should have one thread to do
> all tasks
> -------------------------------------------------------------------------------------
>
> Key: HBASE-6778
> URL: https://issues.apache.org/jira/browse/HBASE-6778
> Project: HBase
> Issue Type: Bug
> Reporter: stack
>
> Should use something like ScheduledThreadPoolExecutor instead (Elliott said
> this first I think; J-D said something similar just now).
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