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https://issues.apache.org/jira/browse/FLINK-15703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17064338#comment-17064338
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likang commented on FLINK-15703:
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the partition discovery has a multi-thread bug so open is not use. must fix
the kafkaConsumer multi-thread safe issue.
> FlinkKafkaConsumer should enable partition discovery by default.
> ----------------------------------------------------------------
>
> Key: FLINK-15703
> URL: https://issues.apache.org/jira/browse/FLINK-15703
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / Kafka
> Affects Versions: 1.9.1
> Reporter: Jiangjie Qin
> Priority: Major
> Labels: usability
> Fix For: 1.11.0
>
>
> In most cases, users would expect a partition expansion in Kafka is
> automatically picked up by Flink. So this partition discovery should be
> enabled by default in the Kafka source.
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