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https://issues.apache.org/jira/browse/FLINK-37870?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-37870:
-----------------------------------
Labels: pull-request-available (was: )
> Unaligned checkpoint is disabled for all connections unexpectedly
> -----------------------------------------------------------------
>
> Key: FLINK-37870
> URL: https://issues.apache.org/jira/browse/FLINK-37870
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Checkpointing
> Affects Versions: 2.0.0, 1.19.2, 1.20.1
> Reporter: Rui Fan
> Assignee: Rui Fan
> Priority: Major
> Labels: pull-request-available
>
> FLINK-36287 would disable unaligned checkpoint between {color:#172b4d}the
> sink writer and committer, but it disabled unaligned checkpoint for all
> connections of the entire DAG.{color}
> h2. {color:#172b4d}Reason:{color}
> [https://github.com/apache/flink/blob/a4e3084ab9220b02bc3eefc70ea372251aec7f07/flink-runtime/src/main/java/org/apache/flink/streaming/runtime/translators/SinkTransformationTranslator.java#L226]
> *_Set<Integer> seen = new HashSet<>(writer.getId());_* creates a HashSet to
> record all seen transformations. It expects to create a HashSet and put the
> first writer transformation into the set to end the recursive loop (to
> prevent traversing the previous transformation of the writer).
> But the constructor parameter of new HashSet is initialCapacity, so it only
> created a HashSet, and didn't put the first writer transformation into the
> set.
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