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[jira] [Created] (FLINK-10155) JobExecutionException when using evictor followed with map


Prithvi Raj created FLINK-10155:
-----------------------------------

             Summary: JobExecutionException when using evictor followed with map
                 Key: FLINK-10155
                 URL: https://issues.apache.org/jira/browse/FLINK-10155
             Project: Flink
          Issue Type: Bug
          Components: DataStream API
    Affects Versions: 1.6.0
            Reporter: Prithvi Raj


The DataStream API encounters `JobExecutionException` when using a `map` after an event time `timeWindow` with an `evictor`. 

The exception is thrown at `out.collect` on the `WindowFunction` and is not thrown when an `evictor` isn't used, or when not using event time semantics.

 

The exception is: 
{code:java}
org.apache.flink.runtime.client.JobExecutionException: java.lang.RuntimeException: Exception occurred while processing valve output watermark: 

at org.apache.flink.runtime.minicluster.MiniCluster.executeJobBlocking(MiniCluster.java:623)
at org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:123)
at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1511)
at com.uber.jaeger.dependencies.DependenciesProcessorTest.testMapAfterWindowing(DependenciesProcessorTest.java:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.RuntimeException: Exception occurred while processing valve output watermark: 
at org.apache.flink.streaming.runtime.io.StreamInputProcessor$ForwardingValveOutputHandler.handleWatermark(StreamInputProcessor.java:265)
at org.apache.flink.streaming.runtime.streamstatus.StatusWatermarkValve.findAndOutputNewMinWatermarkAcrossAlignedChannels(StatusWatermarkValve.java:189)
at org.apache.flink.streaming.runtime.streamstatus.StatusWatermarkValve.inputWatermark(StatusWatermarkValve.java:111)
at org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:184)
at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:105)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:300)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:711)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException: Could not forward element to next operator
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:596)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:554)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:534)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:689)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:667)
at org.apache.flink.streaming.api.operators.TimestampedCollector.collect(TimestampedCollector.java:51)
at com.uber.jaeger.dependencies.DependenciesProcessorTest$2.apply(DependenciesProcessorTest.java:89)
at com.uber.jaeger.dependencies.DependenciesProcessorTest$2.apply(DependenciesProcessorTest.java:86)
at org.apache.flink.streaming.runtime.operators.windowing.functions.InternalIterableWindowFunction.process(InternalIterableWindowFunction.java:44)
at org.apache.flink.streaming.runtime.operators.windowing.functions.InternalIterableWindowFunction.process(InternalIterableWindowFunction.java:32)
at org.apache.flink.streaming.runtime.operators.windowing.EvictingWindowOperator.emitWindowContents(EvictingWindowOperator.java:359)
at org.apache.flink.streaming.runtime.operators.windowing.EvictingWindowOperator.onEventTime(EvictingWindowOperator.java:271)
at org.apache.flink.streaming.api.operators.InternalTimerServiceImpl.advanceWatermark(InternalTimerServiceImpl.java:251)
at org.apache.flink.streaming.api.operators.InternalTimeServiceManager.advanceWatermark(InternalTimeServiceManager.java:128)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator.processWatermark(AbstractStreamOperator.java:746)
at org.apache.flink.streaming.runtime.io.StreamInputProcessor$ForwardingValveOutputHandler.handleWatermark(StreamInputProcessor.java:262)
... 7 more
Caused by: org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException: Could not forward element to next operator
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:596)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:554)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:534)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:689)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:667)
at org.apache.flink.streaming.api.operators.StreamMap.processElement(StreamMap.java:41)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:579)
... 22 more
Caused by: com.esotericsoftware.kryo.KryoException: java.lang.NullPointerException
Serialization trace:
strategies (org.apache.flink.api.common.state.StateTtlConfig$CleanupStrategies)
cleanupStrategies (org.apache.flink.api.common.state.StateTtlConfig)
ttlConfig (org.apache.flink.api.common.state.ListStateDescriptor)
evictingWindowStateDescriptor (org.apache.flink.streaming.runtime.operators.windowing.EvictingWindowOperator)
this$0 (org.apache.flink.streaming.runtime.operators.windowing.EvictingWindowOperator$2)
val$function (org.apache.flink.shaded.guava18.com.google.common.collect.Iterables$8)
val$fromIterable (org.apache.flink.shaded.guava18.com.google.common.collect.Iterables$8)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:82)
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:505)
at org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.copy(KryoSerializer.java:224)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:577)
... 28 more
Caused by: java.lang.NullPointerException
at java.util.EnumMap$EnumMapIterator.hasNext(EnumMap.java:527)
at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:80)
at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:21)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
... 50 more{code}
 

And the code is:
{code:java}
@Test
public void testMapAfterWindowing() throws Exception {
    StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
    env.setParallelism(1);
    env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime);


    DataStreamSource<String> stringStream = env.fromElements("this", "is", "some", "data", "tomfoolery");
    SingleOutputStreamOperator<String> source = stringStream.assignTimestampsAndWatermarks(new IngestionTimeExtractor<>());

    source.keyBy(new KeySelector<String, String>() {
        @Override
        public String getKey(String value) throws Exception {
            return value.substring(0, 1);
        }
    })
            .timeWindow(Time.milliseconds(100))
            .evictor(CountEvictor.of(1))
            .apply(new WindowFunction<String, Iterable<String>, String, TimeWindow>() {
                @Override
                public void apply(String s, TimeWindow window, Iterable<String> input, Collector<Iterable<String>> out) throws Exception {
                    out.collect(input);
                }
            })
            .map(new RichMapFunction<Iterable<String>, Iterable<String>>() {
                // Identity map function
                @Override
                public Iterable<String> map(Iterable<String> value) throws Exception {
                    return value;
                }
            })
            .printToErr();

    env.execute();

}{code}



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