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https://issues.apache.org/jira/browse/FLINK-11774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nico Kruber updated FLINK-11774:
--------------------------------
Summary: Unstable hashCode causes IllegalArgumentException in
HeapPriorityQueueSet (was: IllegalArgumentException in HeapPriorityQueueSet)
> Unstable hashCode causes IllegalArgumentException in HeapPriorityQueueSet
> -------------------------------------------------------------------------
>
> Key: FLINK-11774
> URL: https://issues.apache.org/jira/browse/FLINK-11774
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends
> Affects Versions: 1.7.2, 1.9.2, 1.10.0
> Environment: Can reproduce on the following configurations:
>
> OS: macOS 10.14.3
> Java: 1.8.0_202
>
> OS: CentOS 7.2.1511
> Java: 1.8.0_102
> Reporter: Kirill Vainer
> Priority: Blocker
> Fix For: 1.9.3, 1.10.1, 1.11.0
>
> Attachments: flink-bug-dist.zip, flink-bug-src.zip
>
>
> Hi,
> I encountered the following exception:
> {code}
> Exception in thread "main"
> org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
> at
> org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:146)
> at
> org.apache.flink.runtime.minicluster.MiniCluster.executeJobBlocking(MiniCluster.java:647)
> at
> org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:123)
> at
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1510)
> at flink.bug.App.main(App.java:21)
> Caused by: java.lang.IllegalArgumentException
> at
> org.apache.flink.util.Preconditions.checkArgument(Preconditions.java:123)
> at
> org.apache.flink.runtime.state.heap.HeapPriorityQueueSet.globalKeyGroupToLocalIndex(HeapPriorityQueueSet.java:158)
> at
> org.apache.flink.runtime.state.heap.HeapPriorityQueueSet.getDedupMapForKeyGroup(HeapPriorityQueueSet.java:147)
> at
> org.apache.flink.runtime.state.heap.HeapPriorityQueueSet.getDedupMapForElement(HeapPriorityQueueSet.java:154)
> at
> org.apache.flink.runtime.state.heap.HeapPriorityQueueSet.add(HeapPriorityQueueSet.java:121)
> at
> org.apache.flink.runtime.state.heap.HeapPriorityQueueSet.add(HeapPriorityQueueSet.java:49)
> at
> org.apache.flink.streaming.api.operators.InternalTimerServiceImpl.registerProcessingTimeTimer(InternalTimerServiceImpl.java:197)
> at
> org.apache.flink.streaming.runtime.operators.windowing.WindowOperator$Context.registerProcessingTimeTimer(WindowOperator.java:876)
> at
> org.apache.flink.streaming.api.windowing.triggers.ProcessingTimeTrigger.onElement(ProcessingTimeTrigger.java:36)
> at
> org.apache.flink.streaming.api.windowing.triggers.ProcessingTimeTrigger.onElement(ProcessingTimeTrigger.java:28)
> at
> org.apache.flink.streaming.runtime.operators.windowing.WindowOperator$Context.onElement(WindowOperator.java:895)
> at
> org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.processElement(WindowOperator.java:396)
> at
> org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:202)
> at
> org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:105)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:300)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:704)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> Code that reproduces the problem:
> {code:java}
> package flink.bug;
> import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
> import org.apache.flink.streaming.api.functions.sink.SinkFunction;
> import org.apache.flink.streaming.api.windowing.time.Time;
> public class App {
> public static void main(String[] args) throws Exception {
> StreamExecutionEnvironment env =
> StreamExecutionEnvironment.getExecutionEnvironment();
> env.setParallelism(2);
> env.fromElements(1, 2)
> .map(Aggregate::new)
> .keyBy(Aggregate::getKey)
> .timeWindow(Time.seconds(2))
> .reduce(Aggregate::reduce)
> .addSink(new CollectSink());
> env.execute();
> }
> private static class Aggregate {
> private Key key = new Key();
> public Aggregate(long number) {
> }
> public static Aggregate reduce(Aggregate a, Aggregate b) {
> return new Aggregate(0);
> }
> public Key getKey() {
> return key;
> }
> }
> public static class Key {
> }
> private static class CollectSink implements SinkFunction<Aggregate> {
> private static final long serialVersionUID = 1;
> @SuppressWarnings("rawtypes")
> @Override
> public void invoke(Aggregate value, Context ctx) throws Exception {
> }
> }
> }
> {code}
> Attached is the project that can be executed with {{./gradlew run}} showing
> the problem, or you can run the attached {{flink-bug-dist.zip}} which is
> prepackaged with the dependencies.
> Thanks in advance
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