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From "LaStrange, Adam" <>
Subject Yarn nodemanager java.lang.OutOfMemory
Date Thu, 18 Feb 2016 18:52:00 GMT
I have seen several instances of the Yarn nodemanager shutting down due to this exception:

2016-02-16 18:04:24,510 WARN  impl.MetricsSystemImpl ( - java.util.ConcurrentModificationException
2016-02-16 18:04:34,509 WARN  impl.MetricsSystemImpl ( - java.util.ConcurrentModificationException
2016-02-16 18:04:44,510 WARN  impl.MetricsSystemImpl ( - java.util.ConcurrentModificationException
2016-02-16 18:04:59,424 FATAL yarn.YarnUncaughtExceptionHandler (
- Thread Thread[timeline,5,main] threw an Error.  Shutting down now...
java.lang.OutOfMemoryError: Java heap space
       at java.util.HashMap.resize(
       at java.util.HashMap.putVal(
       at java.util.HashMap.put(
       at org.apache.hadoop.metrics2.sink.timeline.cache.TimelineMetricsCache$TimelineMetricHolder.put(
       at org.apache.hadoop.metrics2.sink.timeline.cache.TimelineMetricsCache.putTimelineMetric(
       at org.apache.hadoop.metrics2.sink.timeline.cache.TimelineMetricsCache.putTimelineMetric(
       at org.apache.hadoop.metrics2.sink.timeline.HadoopTimelineMetricsSink.putMetrics(
       at org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.consume(
       at org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.consume(
       at org.apache.hadoop.metrics2.impl.SinkQueue.consumeAll(
       at org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.publishMetricsFromQueue(
       at org.apache.hadoop.metrics2.impl.MetricsSinkAdapter$
2016-02-16 18:04:59,433 INFO  util.ExitUtil ( - Halt with status -1
Message: HaltException

This code is located in the ambari-metrics project.  Has anyone seen this before or have advice
on how to proceed?  Running with HDP-, Ambari Metrics 0.1.0, YARN 

-Adam L


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