[ 
https://issues.apache.org/jira/browse/FLINK-10220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16649913#comment-16649913
 ] 

Till Rohrmann commented on FLINK-10220:
---------------------------------------

Have you tried to run this test in a loop on your local machine or some cloud 
instance? Usually, I could provoke test failures like this before [~hequn8128].

> StreamSQL E2E test fails on travis
> ----------------------------------
>
>                 Key: FLINK-10220
>                 URL: https://issues.apache.org/jira/browse/FLINK-10220
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API & SQL, Tests
>    Affects Versions: 1.7.0
>            Reporter: Chesnay Schepler
>            Assignee: Hequn Cheng
>            Priority: Critical
>             Fix For: 1.7.0
>
>
> https://travis-ci.org/zentol/flink-ci/jobs/420972344
> {code}
> [FAIL] 'Streaming SQL end-to-end test' failed after 1 minutes and 49 seconds! 
> Test exited with exit code 0 but the logs contained errors, exceptions or 
> non-empty .out files
> 2018-08-27 07:34:36,311 INFO  
> org.apache.flink.runtime.executiongraph.ExecutionGraph        - window: 
> (TumblingGroupWindow('w$, 'rowtime, 20000.millis)), select: ($SUM0(correct) 
> AS correct, start('w$) AS w$start, end('w$) AS w$end, rowtime('w$) AS 
> w$rowtime, proctime('w$) AS w$proctime) -> select: (correct, w$start AS 
> rowtime) -> to: Row -> Map -> Sink: Unnamed (1/1) 
> (97d055e4661ff3361a504626257d406d) switched from RUNNING to FAILED.
> java.lang.RuntimeException: Exception occurred while processing valve output 
> watermark: 
>       at 
> org.apache.flink.streaming.runtime.io.StreamInputProcessor$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$CountingOutput.collect(AbstractStreamOperator.java:667)
>       at 
> org.apache.flink.streaming.api.operators.TimestampedCollector.collect(TimestampedCollector.java:51)
>       at 
> org.apache.flink.table.runtime.aggregate.TimeWindowPropertyCollector.collect(TimeWindowPropertyCollector.scala:65)
>       at 
> org.apache.flink.table.runtime.aggregate.IncrementalAggregateAllWindowFunction.apply(IncrementalAggregateAllWindowFunction.scala:62)
>       at 
> org.apache.flink.table.runtime.aggregate.IncrementalAggregateAllTimeWindowFunction.apply(IncrementalAggregateAllTimeWindowFunction.scala:65)
>       at 
> org.apache.flink.table.runtime.aggregate.IncrementalAggregateAllTimeWindowFunction.apply(IncrementalAggregateAllTimeWindowFunction.scala:37)
>       at 
> org.apache.flink.streaming.runtime.operators.windowing.functions.InternalSingleValueAllWindowFunction.process(InternalSingleValueAllWindowFunction.java:46)
>       at 
> org.apache.flink.streaming.runtime.operators.windowing.functions.InternalSingleValueAllWindowFunction.process(InternalSingleValueAllWindowFunction.java:34)
>       at 
> org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.emitWindowContents(WindowOperator.java:546)
>       at 
> org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.onEventTime(WindowOperator.java:454)
>       at 
> org.apache.flink.streaming.api.operators.InternalTimerServiceImpl.advanceWatermark(InternalTimerServiceImpl.java:251)
>       at 
> org.apache.flink.streaming.api.operators.InternalTimeServiceManager.advanceWatermark(InternalTimeServiceManager.java:128)
>       at 
> org.apache.flink.streaming.api.operators.AbstractStreamOperator.processWatermark(AbstractStreamOperator.java:746)
>       at 
> org.apache.flink.streaming.runtime.io.StreamInputProcessor$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.TimestampedCollector.collect(TimestampedCollector.java:51)
>       at 
> org.apache.flink.table.runtime.CRowWrappingCollector.collect(CRowWrappingCollector.scala:37)
>       at 
> org.apache.flink.table.runtime.CRowWrappingCollector.collect(CRowWrappingCollector.scala:28)
>       at DataStreamCalcRule$100.processElement(Unknown Source)
>       at 
> org.apache.flink.table.runtime.CRowProcessRunner.processElement(CRowProcessRunner.scala:66)
>       at 
> org.apache.flink.table.runtime.CRowProcessRunner.processElement(CRowProcessRunner.scala:35)
>       at 
> org.apache.flink.streaming.api.operators.ProcessOperator.processElement(ProcessOperator.java:66)
>       at 
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:579)
>       ... 24 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)
>       ... 36 more
> Caused by: java.lang.RuntimeException: Kill this Job!
>       at 
> org.apache.flink.sql.tests.StreamSQLTestProgram$KillMapper.map(StreamSQLTestProgram.java:286)
>       at 
> org.apache.flink.sql.tests.StreamSQLTestProgram$KillMapper.map(StreamSQLTestProgram.java:274)
>       at 
> org.apache.flink.streaming.api.operators.StreamMap.processElement(StreamMap.java:41)
>       at 
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:579)
>       ... 42 more
> 2018-08-27 07:34:36,320 INFO  
> org.apache.flink.runtime.executiongraph.ExecutionGraph        - Job Flink 
> Streaming Job (fbe12c5fb19e16f1575ae412acc810a7) switched from state RUNNING 
> to FAILING.
> java.lang.RuntimeException: Exception occurred while processing valve output 
> watermark: 
>       at 
> org.apache.flink.streaming.runtime.io.StreamInputProcessor$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$CountingOutput.collect(AbstractStreamOperator.java:667)
>       at 
> org.apache.flink.streaming.api.operators.TimestampedCollector.collect(TimestampedCollector.java:51)
>       at 
> org.apache.flink.table.runtime.aggregate.TimeWindowPropertyCollector.collect(TimeWindowPropertyCollector.scala:65)
>       at 
> org.apache.flink.table.runtime.aggregate.IncrementalAggregateAllWindowFunction.apply(IncrementalAggregateAllWindowFunction.scala:62)
>       at 
> org.apache.flink.table.runtime.aggregate.IncrementalAggregateAllTimeWindowFunction.apply(IncrementalAggregateAllTimeWindowFunction.scala:65)
>       at 
> org.apache.flink.table.runtime.aggregate.IncrementalAggregateAllTimeWindowFunction.apply(IncrementalAggregateAllTimeWindowFunction.scala:37)
>       at 
> org.apache.flink.streaming.runtime.operators.windowing.functions.InternalSingleValueAllWindowFunction.process(InternalSingleValueAllWindowFunction.java:46)
>       at 
> org.apache.flink.streaming.runtime.operators.windowing.functions.InternalSingleValueAllWindowFunction.process(InternalSingleValueAllWindowFunction.java:34)
>       at 
> org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.emitWindowContents(WindowOperator.java:546)
>       at 
> org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.onEventTime(WindowOperator.java:454)
>       at 
> org.apache.flink.streaming.api.operators.InternalTimerServiceImpl.advanceWatermark(InternalTimerServiceImpl.java:251)
>       at 
> org.apache.flink.streaming.api.operators.InternalTimeServiceManager.advanceWatermark(InternalTimeServiceManager.java:128)
>       at 
> org.apache.flink.streaming.api.operators.AbstractStreamOperator.processWatermark(AbstractStreamOperator.java:746)
>       at 
> org.apache.flink.streaming.runtime.io.StreamInputProcessor$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.TimestampedCollector.collect(TimestampedCollector.java:51)
>       at 
> org.apache.flink.table.runtime.CRowWrappingCollector.collect(CRowWrappingCollector.scala:37)
>       at 
> org.apache.flink.table.runtime.CRowWrappingCollector.collect(CRowWrappingCollector.scala:28)
>       at DataStreamCalcRule$100.processElement(Unknown Source)
>       at 
> org.apache.flink.table.runtime.CRowProcessRunner.processElement(CRowProcessRunner.scala:66)
>       at 
> org.apache.flink.table.runtime.CRowProcessRunner.processElement(CRowProcessRunner.scala:35)
>       at 
> org.apache.flink.streaming.api.operators.ProcessOperator.processElement(ProcessOperator.java:66)
>       at 
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:579)
>       ... 24 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)
>       ... 36 more
> Caused by: java.lang.RuntimeException: Kill this Job!
>       at 
> org.apache.flink.sql.tests.StreamSQLTestProgram$KillMapper.map(StreamSQLTestProgram.java:286)
>       at 
> org.apache.flink.sql.tests.StreamSQLTestProgram$KillMapper.map(StreamSQLTestProgram.java:274)
>       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)
>       ... 42 more
> {code}



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