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https://issues.apache.org/jira/browse/FLINK-35442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Qingsheng Ren resolved FLINK-35442.
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Resolution: Fixed
> Kafka Pipeline Sink may distribute the same key to different partitions after
> modify parallelism
> ------------------------------------------------------------------------------------------------
>
> Key: FLINK-35442
> URL: https://issues.apache.org/jira/browse/FLINK-35442
> Project: Flink
> Issue Type: Improvement
> Components: Flink CDC
> Affects Versions: cdc-3.2.0
> Reporter: LvYanquan
> Assignee: LvYanquan
> Priority: Critical
> Labels: pull-request-available
> Fix For: cdc-3.2.0
>
>
> Currently, Kafka Pipeline Sink partition events by
> parallelInstanceId % partitions.length，this is because the previous partition
> operator has already shuffled events by key.
> However, If the parallelism of the task is modified and restarted, data with
> the same key before and after the task may be in different partitions.
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