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Posted to issues@spark.apache.org by "Ruslan Dautkhanov (Jira)" <ji...@apache.org> on 2020/08/13 17:35:00 UTC
[jira] [Commented] (SPARK-28367) Kafka connector infinite wait
because metadata never updated
[ https://issues.apache.org/jira/browse/SPARK-28367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17177202#comment-17177202 ]
Ruslan Dautkhanov commented on SPARK-28367:
-------------------------------------------
[~gsomogyi] thanks! yep would be great to learn how this is done on the Flink 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, 3.1.0
> 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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