Nick Dimiduk created HBASE-12399:
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Summary: Master startup race between metrics and RpcServer
Key: HBASE-12399
URL: https://issues.apache.org/jira/browse/HBASE-12399
Project: HBase
Issue Type: Bug
Components: master
Reporter: Nick Dimiduk
Priority: Minor
Fix For: 2.0.0, 0.98.8, 0.99.2
Seeing this on CM tests with frequent master thrashing
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2014-10-31 12:01:59,196 ERROR [Timer for 'HBase' metrics system]
impl.MetricsSourceAdapter: Error getting metrics from source IPC,sub=IPC
java.lang.NullPointerException
at
org.apache.hadoop.hbase.ipc.FifoRpcScheduler.getGeneralQueueLength(FifoRpcScheduler.java:81)
at
org.apache.hadoop.hbase.ipc.MetricsHBaseServerWrapperImpl.getGeneralQueueLength(MetricsHBaseServerWrapperImpl.java:43)
at
org.apache.hadoop.hbase.ipc.MetricsHBaseServerSourceImpl.getMetrics(MetricsHBaseServerSourceImpl.java:117)
at
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMetrics(MetricsSourceAdapter.java:195)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.snapshotMetrics(MetricsSystemImpl.java:419)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.sampleMetrics(MetricsSystemImpl.java:406)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.onTimerEvent(MetricsSystemImpl.java:382)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl$4.run(MetricsSystemImpl.java:369)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)
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