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Posted to dev@hbase.apache.org by "John Leach (JIRA)" <ji...@apache.org> on 2015/04/07 22:44:12 UTC
[jira] [Created] (HBASE-13420)
RegionEnvironment.offerExecutionLatency Blocks Threads under Heavy Load
John Leach created HBASE-13420:
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Summary: RegionEnvironment.offerExecutionLatency Blocks Threads under Heavy Load
Key: HBASE-13420
URL: https://issues.apache.org/jira/browse/HBASE-13420
Project: HBase
Issue Type: Improvement
Reporter: John Leach
The ArrayBlockingQueue blocks threads for 20s during a performance run focusing on creating numerous small scans.
I see a buffer size of (100)
private final BlockingQueue<Long> coprocessorTimeNanos = new ArrayBlockingQueue<Long>(
LATENCY_BUFFER_SIZE);
and then I see a drain coming from
MetricsRegionWrapperImpl with 45 second executor
HRegionMetricsWrapperRunable
RegionCoprocessorHost#getCoprocessorExecutionStatistics()
RegionCoprocessorHost#getExecutionLatenciesNanos()
Am I missing something?
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