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https://issues.apache.org/jira/browse/SPARK-22975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Shixiong Zhu updated SPARK-22975:
---------------------------------
Component/s: (was: SQL)
Structured Streaming
> MetricsReporter producing NullPointerException when there was no progress
> reported
> ----------------------------------------------------------------------------------
>
> Key: SPARK-22975
> URL: https://issues.apache.org/jira/browse/SPARK-22975
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 2.2.0, 2.2.1
> Reporter: Yuriy Bondaruk
>
> The exception occurs in MetricsReporter when it tries to register gauges
> using lastProgress of each stream.
> {code:java}
> registerGauge("inputRate-total", () =>
> stream.lastProgress.inputRowsPerSecond)
> registerGauge("processingRate-total", () =>
> stream.lastProgress.inputRowsPerSecond)
> registerGauge("latency", () =>
> stream.lastProgress.durationMs.get("triggerExecution").longValue())
> {code}
> In case if a stream doesn't have any progress reported than following
> exception occurs:
> {noformat}
> 18/01/05 17:45:57 ERROR ScheduledReporter: RuntimeException thrown from
> CloudwatchReporter#report. Exception was suppressed.
> java.lang.NullPointerException
> at
> org.apache.spark.sql.execution.streaming.MetricsReporter$$anonfun$1.apply$mcD$sp(MetricsReporter.scala:42)
> at
> org.apache.spark.sql.execution.streaming.MetricsReporter$$anonfun$1.apply(MetricsReporter.scala:42)
> at
> org.apache.spark.sql.execution.streaming.MetricsReporter$$anonfun$1.apply(MetricsReporter.scala:42)
> at
> org.apache.spark.sql.execution.streaming.MetricsReporter$$anon$1.getValue(MetricsReporter.scala:49)
> at
> amazon.nexus.spark.metrics.cloudwatch.CloudwatchReporter.lambda$createNumericGaugeMetricDatumStream$0(CloudwatchReporter.java:146)
> at
> java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174)
> at
> java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet.lambda$entryConsumer$0(Collections.java:1575)
> at
> java.util.TreeMap$EntrySpliterator.forEachRemaining(TreeMap.java:2969)
> at
> java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet$UnmodifiableEntrySetSpliterator.forEachRemaining(Collections.java:1600)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
> at
> java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
> at
> java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312)
> at
> java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742)
> at
> java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742)
> at
> java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742)
> at
> java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742)
> at
> java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742)
> at
> java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
> at
> java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
> at
> java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at
> java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:510)
> at
> amazon.nexus.spark.metrics.cloudwatch.CloudwatchReporter.partitionIntoSublists(CloudwatchReporter.java:390)
> at
> amazon.nexus.spark.metrics.cloudwatch.CloudwatchReporter.report(CloudwatchReporter.java:137)
> at
> com.codahale.metrics.ScheduledReporter.report(ScheduledReporter.java:162)
> at
> com.codahale.metrics.ScheduledReporter$1.run(ScheduledReporter.java:117)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
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