Nicolas Liochon created HBASE-11590:
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Summary: use a specific ThreadPoolExecutor
Key: HBASE-11590
URL: https://issues.apache.org/jira/browse/HBASE-11590
Project: HBase
Issue Type: Bug
Components: Client, Performance
Affects Versions: 1.0.0, 2.0.0
Reporter: Nicolas Liochon
Assignee: Nicolas Liochon
Priority: Minor
Fix For: 1.0.0, 2.0.0
The JDK TPE creates all the threads in the pool. As a consequence, we create
(by default) 256 threads even if we just need a few.
The attached TPE create threads only if we have something in the queue.
On a PE test with replica on, it improved the 99 latency percentile by 5%.
Warning: there are likely some race conditions, but I'm posting it here because
there is may be an implementation available somewhere we can use, or a good
reason not to do that. So feedback welcome as usual.
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