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https://issues.apache.org/jira/browse/SPARK-28367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16923197#comment-16923197
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Gabor Somogyi commented on SPARK-28367:
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The main discussion on Kafka side started here:
https://lists.apache.org/thread.html/017cf631ef981ab1b494b1249be5c11d7edfe5f4867770a18188ebdc@%3Cdev.kafka.apache.org%3E
I've made a summary in my closed PR to describe the solution going to be made
on Spark side.
> Kafka connector infinite wait because metadata never updated
> ------------------------------------------------------------
>
> Key: SPARK-28367
> URL: https://issues.apache.org/jira/browse/SPARK-28367
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 2.1.3, 2.2.3, 2.3.3, 2.4.3, 3.0.0
> Reporter: Gabor Somogyi
> Priority: Critical
>
> Spark uses an old and deprecated API named poll(long) which never returns and
> stays in live lock if metadata is not updated (for instance when broker
> disappears at consumer creation).
> I've created a small standalone application to test it and the alternatives:
> https://github.com/gaborgsomogyi/kafka-get-assignment
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