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https://issues.apache.org/jira/browse/HBASE-10449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14791145#comment-14791145
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Nicolas Liochon commented on HBASE-10449:
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It's the former: in this case, the queries are queued. A new thread will be
created only when the queue is full. Then, if we reach maxThreads and the queue
is full the new tasks are rejected. In our case the queue is nearly unbounded,
so we stay with corePoolSize.
> Wrong execution pool configuration in HConnectionManager
> --------------------------------------------------------
>
> Key: HBASE-10449
> URL: https://issues.apache.org/jira/browse/HBASE-10449
> Project: HBase
> Issue Type: Bug
> Components: Client
> Affects Versions: 0.98.0, 0.99.0, 0.96.1.1
> Reporter: Nicolas Liochon
> Assignee: Nicolas Liochon
> Priority: Critical
> Fix For: 0.98.0, 0.96.2, 0.99.0
>
> Attachments: HBASE-10449.v1.patch
>
>
> There is a confusion in the configuration of the pool. The attached patch
> fixes this. This may change the client performances, as we were using a
> single thread.
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