Ke Wu created BEAM-12677:
----------------------------
Summary: Samza postcommits failing
testFlattenWithDifferentInputAndOutputCoders2
Key: BEAM-12677
URL: https://issues.apache.org/jira/browse/BEAM-12677
Project: Beam
Issue Type: Bug
Components: test-failures
Reporter: Ke Wu
Both beam_PostCommit_Java_PVR_Flink_Batch and
beam_PostCommit_Java_PVR_Flink_Streaming are failing newly added test
org.apache.beam.sdk.transforms.FlattenTest.testFlattenWithDifferentInputAndOutputCoders2.
SEVERE: Error in task code: CHAIN MapPartition (MapPartition at [6]{Values,
FlatMapElements, PAssert$0}) -> FlatMap (FlatMap at ExtractOutput[0]) -> Map
(Key Extractor) -> GroupCombine (GroupCombine at GroupCombine:
PAssert$0/GroupGlobally/GatherAllOutputs/GroupByKey) -> Map (Key Extractor)
(2/2) java.lang.ClassCastException: org.apache.beam.sdk.values.KV cannot be
cast to [B
at
org.apache.beam.sdk.coders.ByteArrayCoder.encode(ByteArrayCoder.java:41)
at
org.apache.beam.sdk.coders.LengthPrefixCoder.encode(LengthPrefixCoder.java:56)
at org.apache.beam.sdk.coders.Coder.encode(Coder.java:136)
at
org.apache.beam.sdk.util.WindowedValue$FullWindowedValueCoder.encode(WindowedValue.java:590)
at
org.apache.beam.sdk.util.WindowedValue$FullWindowedValueCoder.encode(WindowedValue.java:581)
at
org.apache.beam.sdk.util.WindowedValue$FullWindowedValueCoder.encode(WindowedValue.java:541)
at
org.apache.beam.sdk.fn.data.BeamFnDataSizeBasedBufferingOutboundObserver.accept(BeamFnDataSizeBasedBufferingOutboundObserver.java:109)
at
org.apache.beam.runners.fnexecution.control.SdkHarnessClient$CountingFnDataReceiver.accept(SdkHarnessClient.java:667)
at
org.apache.beam.runners.flink.translation.functions.FlinkExecutableStageFunction.processElements(FlinkExecutableStageFunction.java:271)
at
org.apache.beam.runners.flink.translation.functions.FlinkExecutableStageFunction.mapPartition(FlinkExecutableStageFunction.java:203)
at
org.apache.flink.runtime.operators.MapPartitionDriver.run(MapPartitionDriver.java:103)
at org.apache.flink.runtime.operators.BatchTask.run(BatchTask.java:504)
at
org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:369)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:530)
at java.lang.Thread.run(Thread.java:748)
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