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https://issues.apache.org/jira/browse/HBASE-10449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13889702#comment-13889702
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Nick Dimiduk commented on HBASE-10449:
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[~nkeywal] I have no objection to the change in default as I have no evidence
to argue for one value or another. I do find it strange that this default
changes as part of a point release on 0.96. [~stack]: it appears the default
for hbase.hconnection.threads.core on 0.96, 0.98, and trunk is now 256. An
administrator can attain the 8 * cores behavior by setting this configuration
value to 0.
> 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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