[GitHub] [beam] damccorm opened a new issue, #19727: Using BigQueryIO.read with DIRECT_READ causes Illegal Mutation

[GitBox <gi...@apache.org>]

damccorm opened a new issue, #19727:
URL: https://github.com/apache/beam/issues/19727

    
   
   Code to read from BigQuery that is causing the issue:
   ```
   
   pipeline
       .apply(BigQueryIO
       .read(SchemaAndRecord::getRecord)
       .from(options.getTableRef())
    
     .withMethod(Method.DIRECT_READ)
       .withCoder(AvroCoder.of(schema)))
   
   ```
   
   If we remove .withMethod(Method.DIRECT_READ) then there is no issue.
   
    
   
   The error is:
   ```
   
   org.apache.beam.sdk.util.IllegalMutationException: PTransform BigQueryIO.TypedRead/Read(BigQueryStorageTableSource)
   mutated value {"device_id": "rpi-rpi0-thermostat", "temperature_c": 20.0, "temperature_f": 52.0, "sample_time":
   1564412307969368, "humidity": 74.3} after it was output (new value was {"device_id": "rpi-rpi0-thermostat",
   "temperature_c": 20.0, "temperature_f": 52.0, "sample_time": 1564412360458615, "humidity": 74.7}). Values
   must not be mutated in any way after being output.
       at org.apache.beam.runners.direct.ImmutabilityCheckingBundleFactory$ImmutabilityEnforcingBundle.commit
   (ImmutabilityCheckingBundleFactory.java:134)
       at org.apache.beam.runners.direct.EvaluationContext.commitBundles
   (EvaluationContext.java:210)
       at org.apache.beam.runners.direct.EvaluationContext.handleResult (EvaluationContext.java:151)
   
      at org.apache.beam.runners.direct.QuiescenceDriver$TimerIterableCompletionCallback.handleResult (QuiescenceDriver.java:262)
   
      at org.apache.beam.runners.direct.DirectTransformExecutor.finishBundle (DirectTransformExecutor.java:189)
   
      at org.apache.beam.runners.direct.DirectTransformExecutor.run (DirectTransformExecutor.java:126)
   
      at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
       at java.util.concurrent.FutureTask.run
   (FutureTask.java:266)
       at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
   
      at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
       at java.lang.Thread.run
   (Thread.java:748)
   Caused by: org.apache.beam.sdk.util.IllegalMutationException: Value {"device_id":
   "rpi-rpi0-thermostat", "temperature_c": 20.0, "temperature_f": 52.0, "sample_time": 1564412307969368,
   "humidity": 74.3} mutated illegally, new value was {"device_id": "rpi-rpi0-thermostat", "temperature_c":
   20.0, "temperature_f": 52.0, "sample_time": 1564412360458615, "humidity": 74.7}. Encoding was AiZycGktcnBpMC10aGVybW9zdGF0AgAAAAAAADRAAgAAAAAAAEpAArDVsP7jtMcFAjMzMzMzk1JA,
   now AiZycGktcnBpMC10aGVybW9zdGF0AgAAAAAAADRAAgAAAAAAAEpAAu6FuLDktMcFAs3MzMzMrFJA.
       at org.apache.beam.sdk.util.MutationDetectors$CodedValueMutationDetector.illegalMutation
   (MutationDetectors.java:153)
       at org.apache.beam.sdk.util.MutationDetectors$CodedValueMutationDetector.verifyUnmodifiedThrowingCheckedExceptions
   (MutationDetectors.java:148)
       at org.apache.beam.sdk.util.MutationDetectors$CodedValueMutationDetector.verifyUnmodified
   (MutationDetectors.java:123)
       at org.apache.beam.runners.direct.ImmutabilityCheckingBundleFactory$ImmutabilityEnforcingBundle.commit
   (ImmutabilityCheckingBundleFactory.java:124)
       at org.apache.beam.runners.direct.EvaluationContext.commitBundles
   (EvaluationContext.java:210)
       at org.apache.beam.runners.direct.EvaluationContext.handleResult (EvaluationContext.java:151)
   
      at org.apache.beam.runners.direct.QuiescenceDriver$TimerIterableCompletionCallback.handleResult (QuiescenceDriver.java:262)
   
      at org.apache.beam.runners.direct.DirectTransformExecutor.finishBundle (DirectTransformExecutor.java:189)
   
      at org.apache.beam.runners.direct.DirectTransformExecutor.run (DirectTransformExecutor.java:126)
   
      at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
       at java.util.concurrent.FutureTask.run
   (FutureTask.java:266)
       at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
   
      at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
       at java.lang.Thread.run
   (Thread.java:748)
   ```
   
    
   
   Imported from Jira [BEAM-8029](https://issues.apache.org/jira/browse/BEAM-8029). Original Jira may contain additional context.
   Reported by: clarsen.


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