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Posted to issues@flink.apache.org by "Chesnay Schepler (JIRA)" <ji...@apache.org> on 2018/05/29 11:21:00 UTC
[jira] [Closed] (FLINK-9258) ConcurrentModificationException in
ComponentMetricGroup.getAllVariables
[ https://issues.apache.org/jira/browse/FLINK-9258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chesnay Schepler closed FLINK-9258.
-----------------------------------
Resolution: Fixed
Fix Version/s: 1.6.0
master: 5669b12206c4e1376dabbc0d946f9aeee0f34795
> ConcurrentModificationException in ComponentMetricGroup.getAllVariables
> -----------------------------------------------------------------------
>
> Key: FLINK-9258
> URL: https://issues.apache.org/jira/browse/FLINK-9258
> Project: Flink
> Issue Type: Bug
> Components: Metrics
> Affects Versions: 1.4.2
> Reporter: Narayanan Arunachalam
> Assignee: Chesnay Schepler
> Priority: Major
> Fix For: 1.6.0, 1.4.3, 1.5.1
>
>
> Seeing this exception at the job startup time. Looks like there is a race condition when the metrics variables are constructed.
> The error is intermittent.
> Exception in thread "main" org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
> at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$6.apply$mcV$sp(JobManager.scala:897)
> at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$6.apply(JobManager.scala:840)
> at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$6.apply(JobManager.scala:840)
> at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
> at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
> at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:39)
> at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:415)
> at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> Caused by: java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437)
> at java.util.HashMap$EntryIterator.next(HashMap.java:1471)
> at java.util.HashMap$EntryIterator.next(HashMap.java:1469)
> at java.util.HashMap.putMapEntries(HashMap.java:511)
> at java.util.HashMap.putAll(HashMap.java:784)
> at org.apache.flink.runtime.metrics.groups.ComponentMetricGroup.getAllVariables(ComponentMetricGroup.java:63)
> at org.apache.flink.runtime.metrics.groups.ComponentMetricGroup.getAllVariables(ComponentMetricGroup.java:63)
> at com.netflix.spaas.metrics.MetricsReporterRegistry.getTags(MetricsReporterRegistry.java:147)
> at com.netflix.spaas.metrics.MetricsReporterRegistry.mergeWithSourceAndSinkTags(MetricsReporterRegistry.java:170)
> at com.netflix.spaas.metrics.MetricsReporterRegistry.addReporter(MetricsReporterRegistry.java:75)
> at com.netflix.spaas.nfflink.connector.kafka.source.Kafka010Consumer.createFetcher(Kafka010Consumer.java:69)
> at org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:549)
> at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:86)
> at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:55)
> at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(SourceStreamTask.java:94)
> at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:264)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:718)
> at java.lang.Thread.run(Thread.java:748)
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