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https://issues.apache.org/jira/browse/HBASE-4785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150133#comment-13150133
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Nicolas Spiegelberg commented on HBASE-4785:
--------------------------------------------
Part of 89-fb to trunk port. See r1181949.
> Improve recovery time of HBase client when a region server dies.
> ----------------------------------------------------------------
>
> Key: HBASE-4785
> URL: https://issues.apache.org/jira/browse/HBASE-4785
> Project: HBase
> Issue Type: Improvement
> Reporter: Nicolas Spiegelberg
> Assignee: Nicolas Spiegelberg
> Priority: Minor
> Fix For: 0.94.0
>
>
> When a region server dies, the HBase client waits until the RPC timesout
> before learning that it needs to check META to find the new location of the
> region. And it incurs this *timeout* cost for every region being served by
> the dead region server. Remove this overhead by clearing the entries in cache
> that have the dead region server as their values.
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