[jira] [Created] (FLINK-1662) NullFieldException is thrown when testing IterativeDataStream with tuples, windowing and maxBy

["Péter Szabó (JIRA)" <ji...@apache.org>]

Péter Szabó created FLINK-1662:
----------------------------------

             Summary: NullFieldException is thrown when testing IterativeDataStream with tuples, windowing and maxBy
                 Key: FLINK-1662
                 URL: https://issues.apache.org/jira/browse/FLINK-1662
             Project: Flink
          Issue Type: Bug
          Components: Streaming
            Reporter: Péter Szabó


NullFieldException is thrown when testing IterativeDataStream with tuples, windowing and maxBy.

Stack Trace:
17:02:56,332 ERROR org.apache.flink.streaming.api.collector.StreamOutput         - Emit failed due to: org.apache.flink.types.NullFieldException: Field 0 is null, but expected to hold a value.
	at org.apache.flink.api.java.typeutils.runtime.TupleSerializer.serialize(TupleSerializer.java:118)
	at org.apache.flink.api.java.typeutils.runtime.TupleSerializer.serialize(TupleSerializer.java:30)
	at org.apache.flink.streaming.api.streamrecord.StreamRecordSerializer.serialize(StreamRecordSerializer.java:92)
	at org.apache.flink.streaming.api.streamrecord.StreamRecordSerializer.serialize(StreamRecordSerializer.java:29)
	at org.apache.flink.runtime.plugable.SerializationDelegate.write(SerializationDelegate.java:51)
	at org.apache.flink.runtime.io.network.api.serialization.SpanningRecordSerializer.addRecord(SpanningRecordSerializer.java:76)
	at org.apache.flink.runtime.io.network.api.writer.RecordWriter.emit(RecordWriter.java:86)
	at org.apache.flink.streaming.api.collector.StreamOutput.collect(StreamOutput.java:65)
	at org.apache.flink.streaming.api.collector.DirectedCollectorWrapper.collect(DirectedCollectorWrapper.java:95)
	at org.apache.flink.streaming.api.invokable.operator.windowing.StreamDiscretizer.emitWindow(StreamDiscretizer.java:142)
	at org.apache.flink.streaming.api.invokable.operator.windowing.StreamDiscretizer.triggerOnFakeElement(StreamDiscretizer.java:129)
	at org.apache.flink.streaming.api.invokable.operator.windowing.StreamDiscretizer.processRealElement(StreamDiscretizer.java:101)
	at org.apache.flink.streaming.api.invokable.operator.windowing.StreamDiscretizer.invoke(StreamDiscretizer.java:75)
	at org.apache.flink.streaming.api.streamvertex.StreamVertex.invokeUserFunction(StreamVertex.java:85)
	at org.apache.flink.streaming.api.streamvertex.OutputHandler.invokeUserFunction(OutputHandler.java:229)
	at org.apache.flink.streaming.api.streamvertex.StreamVertex.invoke(StreamVertex.java:121)
	at org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:205)
	at java.lang.Thread.run(Thread.java:745)

Examples can be found in commit https://github.com/mbalassi/flink/commit/42c7889777a0a6d558d58feeb5acb3c06b6fb7df.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)