Eugene Kirpichov created BEAM-2476:
--------------------------------------

             Summary: Dataflow streaming runner fails SDF 
testWindowedSideInputWithCheckpoints
                 Key: BEAM-2476
                 URL: https://issues.apache.org/jira/browse/BEAM-2476
             Project: Beam
          Issue Type: Bug
          Components: runner-dataflow
            Reporter: Eugene Kirpichov
            Assignee: Eugene Kirpichov


When testing https://github.com/apache/beam/pull/1898

INFO: 2017-06-20T00:04:36.310Z: (22acf084264efa8): Executing operation 
PAssert$7/GroupGlobally/GroupDummyAndContents/ReadStream+PAssert$7/GroupGlobally/GroupDummyAndContents/MergeBuckets+PAssert$7/GroupGlobally/Values/Values/Map+PAssert$7/GroupGlobally/ParDo(Concat)+PAssert$7/GetPane/Map+PAssert$7/RunChecks+PAssert$7/VerifyAssertions/ParDo(DefaultConclude)
Jun 19, 2017 5:04:59 PM 
org.apache.beam.runners.dataflow.util.MonitoringUtil$LoggingHandler process
SEVERE: 2017-06-20T00:04:58.641Z: (6a9da772bd8097d0): 
java.lang.RuntimeException: Exception while fetching side input: 
        
com.google.cloud.dataflow.worker.runners.worker.StateFetcher.fetchSideInput(StateFetcher.java:182)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext.fetchSideInput(StreamingModeExecutionContext.java:211)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext.access$700(StreamingModeExecutionContext.java:70)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext$StepContext.issueSideInputFetch(StreamingModeExecutionContext.java:572)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext$UserStepContext.issueSideInputFetch(StreamingModeExecutionContext.java:624)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingSideInputFetcher.getReadyWindows(StreamingSideInputFetcher.java:136)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingSideInputDoFnRunner.startBundle(StreamingSideInputDoFnRunner.java:51)
        
com.google.cloud.dataflow.worker.runners.worker.SimpleParDoFn.reallyStartBundle(SimpleParDoFn.java:222)
        
com.google.cloud.dataflow.worker.runners.worker.SimpleParDoFn.startBundle(SimpleParDoFn.java:150)
        
com.google.cloud.dataflow.worker.runners.worker.ForwardingParDoFn.startBundle(ForwardingParDoFn.java:36)
        
com.google.cloud.dataflow.worker.util.common.worker.ParDoOperation.start(ParDoOperation.java:40)
        
com.google.cloud.dataflow.worker.util.common.worker.MapTaskExecutor.execute(MapTaskExecutor.java:69)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingDataflowWorker.process(StreamingDataflowWorker.java:977)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingDataflowWorker.access$800(StreamingDataflowWorker.java:127)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingDataflowWorker$7.run(StreamingDataflowWorker.java:761)
        
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        java.lang.Thread.run(Thread.java:745)
Caused by: 
com.google.cloud.dataflow.worker.repackaged.com.google.common.util.concurrent.UncheckedExecutionException:
 java.util.NoSuchElementException: Empty PCollection accessed as a singleton 
view.
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2214)
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache.get(LocalCache.java:4053)
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4899)
        
com.google.cloud.dataflow.worker.runners.worker.StateFetcher.fetchSideInput(StateFetcher.java:173)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext.fetchSideInput(StreamingModeExecutionContext.java:211)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext.access$700(StreamingModeExecutionContext.java:70)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext$StepContext.issueSideInputFetch(StreamingModeExecutionContext.java:572)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext$UserStepContext.issueSideInputFetch(StreamingModeExecutionContext.java:624)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingSideInputFetcher.getReadyWindows(StreamingSideInputFetcher.java:136)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingSideInputDoFnRunner.startBundle(StreamingSideInputDoFnRunner.java:51)
        
com.google.cloud.dataflow.worker.runners.worker.SimpleParDoFn.reallyStartBundle(SimpleParDoFn.java:222)
        
com.google.cloud.dataflow.worker.runners.worker.SimpleParDoFn.startBundle(SimpleParDoFn.java:150)
        
com.google.cloud.dataflow.worker.runners.worker.ForwardingParDoFn.startBundle(ForwardingParDoFn.java:36)
        
com.google.cloud.dataflow.worker.util.common.worker.ParDoOperation.start(ParDoOperation.java:40)
        
com.google.cloud.dataflow.worker.util.common.worker.MapTaskExecutor.execute(MapTaskExecutor.java:69)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingDataflowWorker.process(StreamingDataflowWorker.java:977)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingDataflowWorker.access$800(StreamingDataflowWorker.java:127)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingDataflowWorker$7.run(StreamingDataflowWorker.java:761)
        
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        java.lang.Thread.run(Thread.java:745)
Caused by: java.util.NoSuchElementException: Empty PCollection accessed as a 
singleton view.
        
org.apache.beam.sdk.values.PCollectionViews$SingletonViewFn.getDefaultValue(PCollectionViews.java:190)
        
org.apache.beam.sdk.values.PCollectionViews$SingletonViewFn.apply(PCollectionViews.java:215)
        
org.apache.beam.sdk.values.PCollectionViews$SingletonViewFn.apply(PCollectionViews.java:151)
        
com.google.cloud.dataflow.worker.runners.worker.StateFetcher$2.call(StateFetcher.java:150)
        
com.google.cloud.dataflow.worker.runners.worker.StateFetcher$2.call(StateFetcher.java:105)
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache$LocalManualCache$1.load(LocalCache.java:4904)
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3628)
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2336)
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2295)
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2208)
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache.get(LocalCache.java:4053)
        
com.google.cloud.dataflow.worker.repackaged.com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4899)
        
com.google.cloud.dataflow.worker.runners.worker.StateFetcher.fetchSideInput(StateFetcher.java:173)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext.fetchSideInput(StreamingModeExecutionContext.java:211)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext.access$700(StreamingModeExecutionContext.java:70)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext$StepContext.issueSideInputFetch(StreamingModeExecutionContext.java:572)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingModeExecutionContext$UserStepContext.issueSideInputFetch(StreamingModeExecutionContext.java:624)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingSideInputFetcher.getReadyWindows(StreamingSideInputFetcher.java:136)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingSideInputDoFnRunner.startBundle(StreamingSideInputDoFnRunner.java:51)
        
com.google.cloud.dataflow.worker.runners.worker.SimpleParDoFn.reallyStartBundle(SimpleParDoFn.java:222)
        
com.google.cloud.dataflow.worker.runners.worker.SimpleParDoFn.startBundle(SimpleParDoFn.java:150)
        
com.google.cloud.dataflow.worker.runners.worker.ForwardingParDoFn.startBundle(ForwardingParDoFn.java:36)
        
com.google.cloud.dataflow.worker.util.common.worker.ParDoOperation.start(ParDoOperation.java:40)
        
com.google.cloud.dataflow.worker.util.common.worker.MapTaskExecutor.execute(MapTaskExecutor.java:69)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingDataflowWorker.process(StreamingDataflowWorker.java:977)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingDataflowWorker.access$800(StreamingDataflowWorker.java:127)
        
com.google.cloud.dataflow.worker.runners.worker.StreamingDataflowWorker$7.run(StreamingDataflowWorker.java:761)
        
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        java.lang.Thread.run(Thread.java:745)




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