[jira] [Created] (BEAM-6451) Portability Pipeline eventually hangs on bundle registration

["Scott Wegner (JIRA)" <ji...@apache.org>]

Scott Wegner created BEAM-6451:
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             Summary: Portability Pipeline eventually hangs on bundle registration
                 Key: BEAM-6451
                 URL: https://issues.apache.org/jira/browse/BEAM-6451
             Project: Beam
          Issue Type: Bug
          Components: java-fn-execution, runner-dataflow, sdk-py-harness
            Reporter: Scott Wegner
            Assignee: Tyler Akidau


We've seen jobs using portability start off in a healthy state, but then eventually get stuck and hang on bundle registration. We see error logs from the worker harness:

{code}
Processing stuck in step s01 for at least 06h30m00s without outputting or completing in state finish at 
sun.misc.Unsafe.park(Native Method) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) at 
java.util.concurrent.CompletableFuture$Signaller.block(CompletableFuture.java:1693) at 
java.util.concurrent.ForkJoinPool.managedBlock(ForkJoinPool.java:3323) at 
java.util.concurrent.CompletableFuture.waitingGet(CompletableFuture.java:1729) at 
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895) at 
org.apache.beam.sdk.util.MoreFutures.get(MoreFutures.java:57) at 
org.apache.beam.runners.dataflow.worker.fn.control.RegisterAndProcessBundleOperation.finish(RegisterAndProcessBundleOperation.java:277) at 
org.apache.beam.runners.dataflow.worker.util.common.worker.MapTaskExecutor.execute(MapTaskExecutor.java:85) at 
org.apache.beam.runners.dataflow.worker.fn.control.BeamFnMapTaskExecutor.execute(BeamFnMapTaskExecutor.java:119) at 
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker.process(StreamingDataflowWorker.java:1226) at 
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker.access$1000(StreamingDataflowWorker.java:141) at 
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker$6.run(StreamingDataflowWorker.java:965) at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at 
java.lang.Thread.run(Thread.java:745)
{code}

Looking at [the code|https://github.com/apache/beam/blob/release-2.8.0/runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/fn/control/RegisterAndProcessBundleOperation.java#L277], it looks like there are no timeouts on the Bundle Registration calls over the FnApi, which contributes to this hanging forever rather than giving a better failure.

This bug report came from a customer running a python streaming pipeline using the new portability framework on Dataflow. Hopefully we can repro on our own in order to link to the job / logs.



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