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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2025/09/11 06:27:00 UTC

[jira] [Updated] (FLINK-38347) Checkpoint file-merging manager may delete the directory unexpectedly when some RPC messages lost

     [ https://issues.apache.org/jira/browse/FLINK-38347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated FLINK-38347:
-----------------------------------
    Labels: pull-request-available  (was: )

> Checkpoint file-merging manager may delete the directory unexpectedly when some RPC messages lost
> -------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-38347
>                 URL: https://issues.apache.org/jira/browse/FLINK-38347
>             Project: Flink
>          Issue Type: Bug
>    Affects Versions: 2.0.0, 1.20.2, 2.1.0
>            Reporter: Zakelly Lan
>            Assignee: Zakelly Lan
>            Priority: Major
>              Labels: pull-request-available
>
> In FLINK-32086, we delete the orphan directories created by file-merging manager. The orphan check depends on the checkpoint notifications. So we should tolerate rpc messages lost, but current implementation using reference counting which does not verify the message completeness using checkpoint id. That may cause unexpected directory deletion, although this is rare.



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