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https://issues.apache.org/jira/browse/BEAM-10094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17188650#comment-17188650
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Beam JIRA Bot commented on BEAM-10094:
--------------------------------------
This issue is P2 but has been unassigned without any comment for 60 days so it
has been labeled "stale-P2". If this issue is still affecting you, we care!
Please comment and remove the label. Otherwise, in 14 days the issue will be
moved to P3.
Please see https://beam.apache.org/contribute/jira-priorities/ for a detailed
explanation of what these priorities mean.
> Spark failing testFlattenWithDifferentInputAndOutputCoders2
> -----------------------------------------------------------
>
> Key: BEAM-10094
> URL: https://issues.apache.org/jira/browse/BEAM-10094
> Project: Beam
> Issue Type: Bug
> Components: test-failures
> Reporter: Kyle Weaver
> Priority: P2
> Labels: stale-P2
>
> 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)
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