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https://issues.apache.org/jira/browse/FLINK-23408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17645192#comment-17645192
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Dawid Wysakowicz commented on FLINK-23408:
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I don't know where is this code coming from. As I said, in master both drain
and w/o drain stops the source first:
https://github.com/apache/flink/blob/d86ae5d642fa578fb85118e81dd4140d504f818a/flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/SourceStreamTask.java#L260
or
https://github.com/apache/flink/blob/d86ae5d642fa578fb85118e81dd4140d504f818a/flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/SourceOperatorStreamTask.java#L179
> Wait for a checkpoint completed after finishing a task
> ------------------------------------------------------
>
> Key: FLINK-23408
> URL: https://issues.apache.org/jira/browse/FLINK-23408
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Checkpointing, Runtime / Task
> Reporter: Dawid Wysakowicz
> Assignee: Dawid Wysakowicz
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.14.0
>
> Attachments: image-2022-12-09-16-53-08-286.png,
> image-2022-12-09-16-54-05-453.png
>
>
> Before finishing a task we should wait for a checkpoint issued after
> {{finish()}} to commit all pending transactions created from the {{finish()}}
> method.
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