[ https://issues.apache.org/jira/browse/HBASE-13420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
John Leach updated HBASE-13420: ------------------------------- Status: Patch Available (was: In Progress) Patch Submitted to simply remove the calculation. > 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 > Assignee: John Leach > Attachments: HBASE-13420.txt, offerExecutionLatency.tiff > > Original Estimate: 3h > Remaining Estimate: 3h > > 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? -- This message was sent by Atlassian JIRA (v6.3.4#6332)