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https://issues.apache.org/jira/browse/HBASE-16023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-16023:
--------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 1.3.0
2.0.0
Release Note: Adds a 'fastpath' when using the default FIFO rpc scheduler
('fifo'). Does direct handoff from Reader thread to Handler if there is one
ready and willing. Will shine best when high random read workload (YCSB
workloadc for instance)
Status: Resolved (was: Patch Available)
Pushed to branch-1.3+ Thanks for the review [~mantonov]
> Fastpath for the FIFO rpcscheduler
> ----------------------------------
>
> Key: HBASE-16023
> URL: https://issues.apache.org/jira/browse/HBASE-16023
> Project: HBase
> Issue Type: Sub-task
> Components: Performance
> Affects Versions: 2.0.0, 1.3.0
> Reporter: stack
> Assignee: stack
> Fix For: 2.0.0, 1.3.0
>
> Attachments: HBASE-16023.branch-1.001.patch,
> hits.nofifo.fifoplusfp.fifownofp.hacks.png
>
>
> This is an idea copied from kudu where we skip queuing a request if there is
> a handler ready to go; we just do a direct handoff from reader to handler.
> Makes for close to a %20 improvement in random read workloadc testing moving
> the bottleneck to HBASE-15716 and to returning the results.
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