Sergey Shelukhin created AMBARI-22908:
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Summary: division by 0 in metrics
Key: AMBARI-22908
URL: https://issues.apache.org/jira/browse/AMBARI-22908
Project: Ambari
Issue Type: Bug
Reporter: Sergey Shelukhin
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java.lang.ArithmeticException: / by zero at
org.apache.hadoop.metrics2.sink.timeline.availability.MetricSinkWriteShardHostnameHashingStrategy.findCollectorShard(MetricSinkWriteShardHostnameHashingStrategy.java:39)
at
org.apache.hadoop.metrics2.sink.timeline.AbstractTimelineMetricsSink$1.get(AbstractTimelineMetricsSink.java:400)
at
org.apache.hadoop.metrics2.sink.timeline.AbstractTimelineMetricsSink$1.get(AbstractTimelineMetricsSink.java:390)
at
org.apache.hadoop.metrics2.sink.relocated.google.common.base.Suppliers$ExpiringMemoizingSupplier.get(Suppliers.java:192)
at
org.apache.hadoop.metrics2.sink.timeline.AbstractTimelineMetricsSink.getCurrentCollectorHost(AbstractTimelineMetricsSink.java:218)
at
org.apache.hadoop.metrics2.sink.timeline.AbstractTimelineMetricsSink.emitMetrics(AbstractTimelineMetricsSink.java:244)
at
org.apache.hadoop.metrics2.sink.timeline.HadoopTimelineMetricsSink.putMetrics(HadoopTimelineMetricsSink.java:353)
at
org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.consume(MetricsSinkAdapter.java:186)
at
org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.consume(MetricsSinkAdapter.java:43)
at org.apache.hadoop.metrics2.impl.SinkQueue.consumeAll(SinkQueue.java:87) at
org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.publishMetricsFromQueue(MetricsSinkAdapter.java:134)
at
org.apache.hadoop.metrics2.impl.MetricsSinkAdapter$1.run(MetricsSinkAdapter.java:88)
{noformat}
Looks like it should check for empty set or fail earlier with a more meaningful
error.
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