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https://issues.apache.org/jira/browse/FLINK-31319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17701207#comment-17701207
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Leonard Xu commented on FLINK-31319:
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Both 'partitionDiscoveryIntervalMs=0' and 'partitionDiscoveryIntervalMs<0' are
meaningless, it makes sense to me to do not discovery partitions in these
cases.
> Kafka new source partitionDiscoveryIntervalMs=0 cause bounded source can not
> quit
> ---------------------------------------------------------------------------------
>
> Key: FLINK-31319
> URL: https://issues.apache.org/jira/browse/FLINK-31319
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka
> Affects Versions: 1.17.0, 1.16.1
> Reporter: Ran Tao
> Assignee: Ran Tao
> Priority: Critical
> Labels: pull-request-available
> Attachments: image-2023-03-04-01-37-29-360.png,
> image-2023-03-04-01-39-20-352.png, image-2023-03-04-01-40-44-124.png,
> image-2023-03-04-01-41-55-664.png
>
>
> As kafka option description, partitionDiscoveryIntervalMs <=0 means disabled.
> !image-2023-03-04-01-37-29-360.png|width=781,height=147!
> just like start kafka enumerator:
> !image-2023-03-04-01-39-20-352.png|width=465,height=311!
> but inner
> handlePartitionSplitChanges use error if condition( < 0):
> !image-2023-03-04-01-40-44-124.png|width=576,height=237!
>
> it will cause noMoreNewPartitionSplits can not be set to true.
> !image-2023-03-04-01-41-55-664.png|width=522,height=610!
> Finally cause bounded source can not signalNoMoreSplits, so it will not quit.
> Besides，Both ends of the if condition should be mutually exclusive.
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