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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2020/05/11 09:15:59 UTC
[GitHub] [beam] mxm opened a new pull request #11658: [BEAM-9947] Store updated ParDoPayload for length-prefixed timer coders
mxm opened a new pull request #11658:
URL: https://github.com/apache/beam/pull/11658
The updated ParDoPayload which may hold a length-prefixed key coder for the
timer coder was not stored as the new FunctionSpec for the ParDo transform.
Instead, it was discarded right away and the old payload was used.
All non-standard coders need to be length-prefixed and replaced by a
ByteArrayCoder for the Runner to correctly read encoded data from the SDK.
We noticed that that this was not reflected in the ProcessBundleDescriptor
leading to errors like the following:
```
Caused by: org.apache.beam.sdk.coders.CoderException: java.io.EOFException: reached end of stream after reading 36 bytes; 68 bytes expected
at org.apache.beam.sdk.coders.StringUtf8Coder.decode(StringUtf8Coder.java:104)
at org.apache.beam.sdk.coders.StringUtf8Coder.decode(StringUtf8Coder.java:90)
at org.apache.beam.runners.core.construction.Timer$Coder.decode(Timer.java:194)
at org.apache.beam.runners.core.construction.Timer$Coder.decode(Timer.java:157)
at org.apache.beam.sdk.fn.data.BeamFnDataInboundObserver.accept(BeamFnDataInboundObserver.java:81)
at org.apache.beam.sdk.fn.data.BeamFnDataInboundObserver.accept(BeamFnDataInboundObserver.java:31)
at org.apache.beam.sdk.fn.data.BeamFnDataGrpcMultiplexer$InboundObserver.onNext(BeamFnDataGrpcMultiplexer.java:180)
at org.apache.beam.sdk.fn.data.BeamFnDataGrpcMultiplexer$InboundObserver.onNext(BeamFnDataGrpcMultiplexer.java:127)
at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.stub.ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.onMessage(ServerCalls.java:251)
at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.ForwardingServerCallListener.onMessage(ForwardingServerCallListener.java:33)
at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.Contexts$ContextualizedServerCallListener.onMessage(Contexts.java:76)
at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailableInternal(ServerCallImpl.java:309)
at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailable(ServerCallImpl.java:292)
at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1MessagesAvailable.runInContext(ServerImpl.java:782)
at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
... 1 more
```
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