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https://issues.apache.org/jira/browse/BEAM-1653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930846#comment-15930846
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Thomas Groh commented on BEAM-1653:
-----------------------------------
This should be fixed in HEAD. There are future changes to {{PubsubIO}} to make
it more resilient to runner behaviors.
> Error when using PubsubIO with the DirectRunner
> ------------------------------------------------
>
> Key: BEAM-1653
> URL: https://issues.apache.org/jira/browse/BEAM-1653
> Project: Beam
> Issue Type: Bug
> Components: runner-direct, sdk-java-extensions
> Affects Versions: 0.5.0
> Reporter: Félix Mattrat
> Assignee: Thomas Groh
>
> Reading a source with a `org.apache.beam.sdk.io.PubsubIO` and running the
> pipeline with `DirectRunner` result in an error.
> The error occur usually after reading ~200 messages from pubsub at the moment
> where `PubsubIO` try to ack the messages.
> The error:
> ```
> Exception in thread "main" java.lang.IllegalStateException: Cannot finalize a
> restored checkpoint
> at
> org.apache.beam.sdk.repackaged.com.google.common.base.Preconditions.checkState(Preconditions.java:174)
> at
> org.apache.beam.sdk.io.PubsubUnboundedSource$PubsubCheckpoint.finalizeCheckpoint(PubsubUnboundedSource.java:293)
> at
> org.apache.beam.runners.direct.UnboundedReadEvaluatorFactory$UnboundedReadEvaluator.finishRead(UnboundedReadEvaluatorFactory.java:205)
> at
> org.apache.beam.runners.direct.UnboundedReadEvaluatorFactory$UnboundedReadEvaluator.processElement(UnboundedReadEvaluatorFactory.java:142)
> at
> org.apache.beam.runners.direct.TransformExecutor.processElements(TransformExecutor.java:139)
> at
> org.apache.beam.runners.direct.TransformExecutor.run(TransformExecutor.java:107)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> ```
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