mspruc opened a new issue, #594: URL: https://github.com/apache/incubator-wayang/issues/594
[TensorFlowIrisIT test](https://github.com/apache/incubator-wayang/blob/6db324b973314efc940dab1f2b388b40d4d8bed8/wayang-tests-integration/src/test/java/org/apache/wayang/tests/TensorflowIrisIT.java#L60) can non-deterministically fail with error: ``` org.apache.wayang.core.api.exception.WayangException: Executing T[JavaCollect[convert out@JavaMap[1->1, id=400f7211]]] failed. at org.apache.wayang.java.execution.JavaExecutor.execute(JavaExecutor.java:92) at org.apache.wayang.core.platform.PushExecutorTemplate.execute(PushExecutorTemplate.java:73) at org.apache.wayang.core.platform.PushExecutorTemplate$StageExecution.execute(PushExecutorTemplate.java:195) at org.apache.wayang.core.platform.PushExecutorTemplate$StageExecution.doExecute(PushExecutorTemplate.java:166) at org.apache.wayang.core.util.OneTimeExecutable.tryExecute(OneTimeExecutable.java:41) at org.apache.wayang.core.util.OneTimeExecutable.execute(OneTimeExecutable.java:54) at org.apache.wayang.core.platform.PushExecutorTemplate$StageExecution.executeStage(PushExecutorTemplate.java:156) at org.apache.wayang.core.platform.PushExecutorTemplate.execute(PushExecutorTemplate.java:61) at org.apache.wayang.core.platform.CrossPlatformExecutor.execute(CrossPlatformExecutor.java:378) at org.apache.wayang.core.platform.CrossPlatformExecutor.executeSingleStage(CrossPlatformExecutor.java:248) at org.apache.wayang.core.platform.CrossPlatformExecutor.runToBreakpoint(CrossPlatformExecutor.java:320) at org.apache.wayang.core.platform.CrossPlatformExecutor.executeUntilBreakpoint(CrossPlatformExecutor.java:156) at org.apache.wayang.core.api.Job.execute(Job.java:542) at org.apache.wayang.core.api.Job.doExecute(Job.java:326) at org.apache.wayang.core.util.OneTimeExecutable.tryExecute(OneTimeExecutable.java:41) at org.apache.wayang.core.util.OneTimeExecutable.execute(OneTimeExecutable.java:54) at org.apache.wayang.core.api.Job.execute(Job.java:245) at org.apache.wayang.core.api.WayangContext.execute(WayangContext.java:124) at org.apache.wayang.core.api.WayangContext.execute(WayangContext.java:112) at org.apache.wayang.core.api.WayangContext.execute(WayangContext.java:100) at org.apache.wayang.tests.TensorflowIrisIT.test(TensorflowIrisIT.java:155) at java.base/java.lang.reflect.Method.invoke(Method.java:569) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract! at java.base/java.util.TimSort.mergeLo(TimSort.java:781) at java.base/java.util.TimSort.mergeAt(TimSort.java:518) at java.base/java.util.TimSort.mergeCollapse(TimSort.java:448) at java.base/java.util.TimSort.sort(TimSort.java:245) at java.base/java.util.Arrays.sort(Arrays.java:1307) at java.base/java.util.ArrayList.sort(ArrayList.java:1721) at java.base/java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:392) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:510) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) at org.apache.wayang.java.operators.JavaCollectOperator.evaluate(JavaCollectOperator.java:61) at org.apache.wayang.java.execution.JavaExecutor.execute(JavaExecutor.java:82) ... 23 more ``` with execution plan: ``` >>> ExecutionStage[T[JavaTextFileSource[0->1, id=24eec6dd]]]: > JavaTextFileSource[0->1, id=24eec6dd] => StreamChannel => JavaMap[1->1, id=20a8b3b9] > JavaMap[1->1, id=20a8b3b9] => StreamChannel => JavaCollect[convert out@JavaMap[1->1, id=20a8b3b9]] > Out JavaCollect[convert out@JavaMap[1->1, id=20a8b3b9]] => CollectionChannel > Out JavaCollect[convert out@JavaMap[1->1, id=20a8b3b9]] => CollectionChannel >>> ExecutionStage[T[JavaTextFileSource[0->1, id=52043147]]]: > JavaTextFileSource[0->1, id=52043147] => StreamChannel => JavaSort[1->1, id=5f51c50b] > JavaSort[1->1, id=5f51c50b] => StreamChannel => JavaMap[1->1, id=400f7211] > JavaMap[1->1, id=400f7211] => StreamChannel => JavaCollect[convert out@JavaMap[1->1, id=400f7211]] > Out JavaCollect[convert out@JavaMap[1->1, id=400f7211]] => CollectionChannel > Out JavaCollect[convert out@JavaMap[1->1, id=400f7211]] => CollectionChannel >>> ExecutionStage[T[JavaMap[1->1, id=26a1515a]]]: > In CollectionChannel => JavaMap[1->1, id=26a1515a] > JavaMap[1->1, id=26a1515a] => StreamChannel => JavaCollect[convert out@JavaMap[1->1, id=26a1515a]] > Out JavaCollect[convert out@JavaMap[1->1, id=26a1515a]] => CollectionChannel >>> ExecutionStage[T[JavaMap[1->1, id=57c03512]]]: > In CollectionChannel => JavaMap[1->1, id=57c03512] > JavaMap[1->1, id=57c03512] => StreamChannel => JavaLocalCallbackSink[1->0, id=22c6f0e9] >>> ExecutionStage[T[JavaMap[1->1, id=7a7522b9]]]: > In CollectionChannel => JavaMap[1->1, id=7a7522b9] > JavaMap[1->1, id=7a7522b9] => StreamChannel => JavaCollect[convert out@JavaMap[1->1, id=7a7522b9]] > Out JavaCollect[convert out@JavaMap[1->1, id=7a7522b9]] => CollectionChannel >>> ExecutionStage[T[JavaMap[1->1, id=72754682]]]: > In CollectionChannel => JavaMap[1->1, id=72754682] > JavaMap[1->1, id=72754682] => StreamChannel => JavaCollect[convert out@JavaMap[1->1, id=72754682]] > Out JavaCollect[convert out@JavaMap[1->1, id=72754682]] => CollectionChannel >>> ExecutionStage[T[TensorflowCollectionSource[convert out@JavaMap[1->1, id=26a1515a]]]]: > In CollectionChannel => TensorflowCollectionSource[convert out@JavaMap[1->1, id=26a1515a]] > Out TensorflowCollectionSource[convert out@JavaMap[1->1, id=26a1515a]] => TensorChannel >>> ExecutionStage[T[TensorflowCollectionSource[convert out@JavaMap[1->1, id=7a7522b9]]]]: > In CollectionChannel => TensorflowCollectionSource[convert out@JavaMap[1->1, id=7a7522b9]] > Out TensorflowCollectionSource[convert out@JavaMap[1->1, id=7a7522b9]] => TensorChannel >>> ExecutionStage[T[TensorflowCollectionSource[convert out@JavaMap[1->1, id=72754682]]]]: > In CollectionChannel => TensorflowCollectionSource[convert out@JavaMap[1->1, id=72754682]] > Out TensorflowCollectionSource[convert out@JavaMap[1->1, id=72754682]] => TensorChannel >>> ExecutionStage[T[TensorflowPredict[2->1, id=67e6cf80]]]: > In CollectionChannel => TensorflowPredict[2->1, id=67e6cf80] > In TensorChannel => TensorflowPredict[2->1, id=67e6cf80] > TensorflowPredict[2->1, id=67e6cf80] => TensorChannel => TensorflowCollect[convert out@TensorflowPredict[2->1, id=67e6cf80]] > Out TensorflowCollect[convert out@TensorflowPredict[2->1, id=67e6cf80]] => CollectionChannel >>> ExecutionStage[T[TensorflowDLTraining[2->1, id=724a17e0]]]: > In TensorChannel => TensorflowDLTraining[2->1, id=724a17e0] > In TensorChannel => TensorflowDLTraining[2->1, id=724a17e0] > Out TensorflowDLTraining[2->1, id=724a17e0] => CollectionChannel >>> ExecutionStage[T[JavaMap[1->1, id=fff262d]]]: > In CollectionChannel => JavaMap[1->1, id=fff262d] > JavaMap[1->1, id=fff262d] => StreamChannel => JavaLocalCallbackSink[1->0, id=7f347d0c] ``` -- This is an automated message from the Apache Git Service. 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