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https://issues.apache.org/jira/browse/HBASE-2828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928012#action_12928012
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Nicolas Spiegelberg commented on HBASE-2828:
--------------------------------------------
can we add some explicit comment in there about purposefully not going to
Master for the RS count. I wouldn't want a 3rd occurrence of this...
> HTable unnecessarily coupled with HMaster
> -----------------------------------------
>
> Key: HBASE-2828
> URL: https://issues.apache.org/jira/browse/HBASE-2828
> Project: HBase
> Issue Type: Bug
> Components: client
> Affects Versions: 0.90.0
> Reporter: Nicolas Spiegelberg
> Assignee: Nicolas Spiegelberg
> Fix For: 0.90.0
>
> Attachments: HBASE-2828-0.90.patch, HBASE-2828.a.patch,
> HBASE-2828.patch
>
>
> HTable constructor calls "getCurrentNrHRS()" to get the region server count
> for thread pool creation. This code calls HBaseAdmin.getClusterStatus()
> [aka: the HMaster] to get the server count. This information can be scraped
> from counting the ZooKeeper /hbase/rs/--- ZNodes. Need to remove unnecessary
> master queries when ZooKeeper can do the same job.
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