Laura Llewellyn created BEAM-5997:
-------------------------------------
Summary: EVENT_TIME timer throws exception when side input used
Key: BEAM-5997
URL: https://issues.apache.org/jira/browse/BEAM-5997
Project: Beam
Issue Type: Bug
Components: runner-direct
Affects Versions: 2.7.0
Reporter: Laura Llewellyn
Assignee: Daniel Oliveira
Receive this exception when using a DoFn containing an EVENT_TIME timer and
passing a side input. Pipeline processing aborts. It works as expected when the
side input is absent.
{code:java}
2018-11-06-12:03:32 ERROR o.a.b.r.direct.QuiescenceDriver - Internal Error
while delivering timers
java.lang.IllegalArgumentException: expected one element but was:
<TestExpiry/TestingExpiry/ParMultiDo(TestExpiry)/To
KeyedWorkItem/ParMultiDo(ToKeyedWorkItem).output [PCollection],
TestExpiry/View.AsList/View.VoidKeyToMultimapMaterialization/ParDo(VoidKeyToMultimapMaterialization)/ParMultiDo(VoidKeyToMultimapMaterialization).output
[PCollection]>
at
org.apache.beam.repackaged.beam_runners_direct_java.com.google.common.collect.Iterators.getOnlyElement(Iterators.java:322)
at
org.apache.beam.repackaged.beam_runners_direct_java.com.google.common.collect.Iterables.getOnlyElement(Iterables.java:294)
at
org.apache.beam.runners.direct.QuiescenceDriver.fireTimers(QuiescenceDriver.java:167)
at
org.apache.beam.runners.direct.QuiescenceDriver.drive(QuiescenceDriver.java:110)
at
org.apache.beam.runners.direct.ExecutorServiceParallelExecutor$2.run(ExecutorServiceParallelExecutor.java:170)
at java.util.concurrent.Executors$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)
{code}
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