[BEAM-10094] Spark failing testFlattenWithDifferentInputAndOutputCoders2

• Type: Bug
• Status: Open
• Priority: P3
• Resolution: Unresolved
• Component/s: test-failures
• Assignee: Unassigned
• Reporter: Kyle Weaver
• Created: 26/May/20 20:54
• Updated: 04/Jun/22 15:41

Description

Spark portable validates runner is failing on 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)

Issue Links

• is a clone of: BEAM-10016 Flink postcommits failing testFlattenWithDifferentInputAndOutputCoders2