[AMBARI-22908] division by 0 in metrics

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Sergey Shelukhin
• Created: 03/Feb/18 00:05
• Updated: 03/Feb/18 00:05

Description

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)

Looks like it should check for empty set or fail earlier with a more meaningful error.