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Posted to issues@flink.apache.org by "Fabian Paul (Jira)" <ji...@apache.org> on 2022/10/06 13:40:00 UTC

[jira] [Assigned] (FLINK-29509) Set correct subtaskId during recovery of committables

     [ https://issues.apache.org/jira/browse/FLINK-29509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Paul reassigned FLINK-29509:
-----------------------------------

    Assignee: Krzysztof Chmielewski

> Set correct subtaskId during recovery of committables
> -----------------------------------------------------
>
>                 Key: FLINK-29509
>                 URL: https://issues.apache.org/jira/browse/FLINK-29509
>             Project: Flink
>          Issue Type: Bug
>          Components: Connectors / Common
>    Affects Versions: 1.17.0, 1.15.2, 1.16.1
>            Reporter: Fabian Paul
>            Assignee: Krzysztof Chmielewski
>            Priority: Critical
>
> When we recover the `CheckpointCommittableManager` we ignore the subtaskId it is recovered on. [https://github.com/apache/flink/blob/d191bda7e63a2c12416cba56090e5cd75426079b/flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/operators/sink/committables/CheckpointCommittableManagerImpl.java#L58]
> This becomes a problem when a sink uses a post-commit topology because multiple committer operators might forward committable summaries coming from the same subtaskId.
>  
> It should be possible to use the subtaskId already present in the `CommittableCollector` when creating the `CheckpointCommittableManager`s.



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