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https://issues.apache.org/jira/browse/HBASE-3673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-3673:
-------------------------
Resolution: Fixed
Fix Version/s: (was: 0.90.0)
0.92.0
Hadoop Flags: [Reviewed]
Status: Resolved (was: Patch Available)
Committed to TRUNK. Thanks for the patch Karthick.
> Reduce HTable Pool Contention Using Concurrent Collections
> ----------------------------------------------------------
>
> Key: HBASE-3673
> URL: https://issues.apache.org/jira/browse/HBASE-3673
> Project: HBase
> Issue Type: Improvement
> Components: client
> Affects Versions: 0.90.1, 0.90.2
> Reporter: Karthick Sankarachary
> Assignee: Karthick Sankarachary
> Priority: Minor
> Fix For: 0.92.0
>
> Attachments: HBASE-3673-TESTCASE.patch, HBASE-3673.patch
>
> Original Estimate: 5m
> Remaining Estimate: 5m
>
> In the case of medium-to-large sized HTable pools, the amount of time the
> client spends blocking on the underlying map and queue data structures turns
> out to be quite significant. Using an efficient wait-free implementation of
> maps and queues might serve to reduce the contention on the pool. In
> particular, I was wondering if we should replace the synchronized map with a
> concurrent hash map, and linked list with a concurrent linked queue.
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