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From GitBox <...@apache.org>
Subject [GitHub] Noctune opened a new pull request #6719: [FLINK-10375] Add wrapped exception as cause in ExceptionInChainedStubException
Date Thu, 20 Sep 2018 12:04:40 GMT
Noctune opened a new pull request #6719: [FLINK-10375] Add wrapped exception as cause in ExceptionInChainedStubException
URL: https://github.com/apache/flink/pull/6719
 
 
   ## What is the purpose of the change
   
   ExceptionInChainedStubException does not have the wrapped exception as cause. This leads
to generally bad exception traces like:
   
   ```
   org.apache.beam.sdk.util.UserCodeException: org.apache.flink.runtime.operators.chaining.ExceptionInChainedStubException
   	at org.apache.beam.sdk.util.UserCodeException.wrap(UserCodeException.java:36)
   	at org.apache.beam.sdk.io.WriteFiles$ApplyShardingKeyFn$DoFnInvoker.invokeProcessElement(Unknown
Source)
   	at org.apache.beam.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoFnRunner.java:185)
   	at org.apache.beam.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunner.java:149)
   	at org.apache.beam.runners.flink.metrics.DoFnRunnerWithMetricsUpdate.processElement(DoFnRunnerWithMetricsUpdate.java:66)
   	at org.apache.beam.runners.flink.translation.functions.FlinkDoFnFunction.mapPartition(FlinkDoFnFunction.java:120)
   	at org.apache.flink.runtime.operators.MapPartitionDriver.run(MapPartitionDriver.java:103)
   	at org.apache.flink.runtime.operators.BatchTask.run(BatchTask.java:490)
   	at org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:355)
   	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:718)
   	at java.lang.Thread.run(Thread.java:748)
   Caused by: org.apache.flink.runtime.operators.chaining.ExceptionInChainedStubException
   	at org.apache.flink.runtime.operators.chaining.ChainedFlatMapDriver.collect(ChainedFlatMapDriver.java:82)
   	at org.apache.flink.runtime.operators.util.metrics.CountingCollector.collect(CountingCollector.java:35)
   	at org.apache.beam.runners.flink.translation.functions.FlinkDoFnFunction$DoFnOutputManager.output(FlinkDoFnFunction.java:149)
   	at org.apache.beam.runners.core.SimpleDoFnRunner.outputWindowedValue(SimpleDoFnRunner.java:219)
   	at org.apache.beam.runners.core.SimpleDoFnRunner.access$700(SimpleDoFnRunner.java:69)
   	at org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(SimpleDoFnRunner.java:517)
   	at org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(SimpleDoFnRunner.java:505)
   	at org.apache.beam.sdk.io.WriteFiles$ApplyShardingKeyFn.processElement(WriteFiles.java:686)
   ```
   
   This pull request adds the wrapped exception as the cause of the base runtimeexception,
so that it gets included when `toString` is called.
   
   ## Verifying this change
   
   This change is a trivial rework / code cleanup without any test coverage.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (no)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no)
     - The serializers: (no)
     - The runtime per-record code paths (performance sensitive): (no)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing,
Yarn/Mesos, ZooKeeper: (no)
     - The S3 file system connector: (no)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (no)
     - If yes, how is the feature documented? (not applicable)
   

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