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https://issues.apache.org/jira/browse/HBASE-3653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nicolas Spiegelberg updated HBASE-3653:
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Status: Patch Available (was: Open)
> Parallelize Server Requests on HBase Client
> -------------------------------------------
>
> Key: HBASE-3653
> URL: https://issues.apache.org/jira/browse/HBASE-3653
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.90.2, 0.92.0
> Reporter: Nicolas Spiegelberg
> Assignee: Nicolas Spiegelberg
> Fix For: 0.90.2, 0.92.0
>
> Attachments: HBASE-3653.patch
>
>
> Vastly improves HBCK performance. Although we are parallelizing
> getRegionAssignment() calls, getHRegionConnection()
> gets a big lock. Cache misses can be expensive on heavily-loaded servers
> because they need to setup a proxy connection. This hurts cache hits on a
> cache miss & serializes all cache misses. We should parallelize both
> situations.
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