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https://issues.apache.org/jira/browse/FLINK-16827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17072631#comment-17072631
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Jark Wu commented on FLINK-16827:
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[~libenchao], do you want to fix this?
> Kafka stream data sorted by time field throws null pointer exception under
> multiple concurrency
> -----------------------------------------------------------------------------------------------
>
> Key: FLINK-16827
> URL: https://issues.apache.org/jira/browse/FLINK-16827
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner, Table SQL / Runtime
> Affects Versions: 1.9.1
> Environment: flink on yarn
> !image-2020-03-27-21-23-13-648.png!
> Reporter: wuchangjun
> Priority: Major
> Attachments: image-2020-03-27-21-22-21-122.png,
> image-2020-03-27-21-22-44-191.png, image-2020-03-27-21-23-13-648.png
>
>
> flink reads kafka data and sorts by time field. In the case of multiple
> concurrency, it throws the following null pointer exception. One concurrent
> processing is normal.
> !image-2020-03-27-21-22-21-122.png!
>
> !image-2020-03-27-21-22-44-191.png!
>
>
>
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