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https://issues.apache.org/jira/browse/BEAM-5997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16677028#comment-16677028
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Laura Llewellyn edited comment on BEAM-5997 at 11/6/18 5:15 PM:
----------------------------------------------------------------
Pipeline code to run the attached transform and produce the exception:
{code:java}
Pipeline p = Pipeline.create(options);
p.apply(Create.of(KV.<String, String>of("test", "value")))
.apply(new com.test.TestExpiry());
p.run();{code}
was (Author: laurallew):
Pipeline code to run the attached transform and produce the exception:
{code:java}
Pipeline p = Pipeline.create(options);
p.apply(Create.of(KV.<String, String>of("test", "value"))).apply(new
com.test.TestExpiry());
p.run();{code}
> 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
> Priority: Critical
> Attachments: TestExpiry.java
>
>
> 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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