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https://issues.apache.org/jira/browse/BEAM-2551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16080995#comment-16080995
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ASF GitHub Bot commented on BEAM-2551:
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Github user asfgit closed the pull request at:
https://github.com/apache/beam/pull/3513
> KafkaIO reader blocks indefinitely if servers are not reachable
> ---------------------------------------------------------------
>
> Key: BEAM-2551
> URL: https://issues.apache.org/jira/browse/BEAM-2551
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-extensions
> Affects Versions: 2.0.0
> Reporter: Raghu Angadi
> Assignee: Raghu Angadi
> Fix For: 2.1.0
>
>
> If the KafaIO source reader on the worker can't reach the server, Kafka
> consumer blocks forever inside {{UnboundedReader.start()}}. Users have no
> indication of the error. It is better if start() fails with an error.
> It is easy to reproduce in Kafka. I reported it on Kafka users list here :
> https://lists.apache.org/thread.html/98cebefacbd65b0d6c6817fe0b5197e26bc60252e72d05fced91e628@%3Cusers.kafka.apache.org%3E
> It blocks inside Kafka client. Fortunately it can be unblocked with
> KafkaConsumer.wakeup(). We could run initialization in another thread and
> cancel it if takes longer than a minute.
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