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https://issues.apache.org/jira/browse/FLINK-31249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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renxiang zhou updated FLINK-31249:
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Language: (was: JAVA)
> Checkpoint Timer failed to process timeout events when it blocked at writing
> _metadata to DFS
> ---------------------------------------------------------------------------------------------
>
> Key: FLINK-31249
> URL: https://issues.apache.org/jira/browse/FLINK-31249
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Checkpointing
> Affects Versions: 1.11.6, 1.16.0
> Reporter: renxiang zhou
> Priority: Major
> Fix For: 1.18.0
>
> Attachments: image-2023-02-28-11-25-03-637.png
>
>
> The jobmanager-future thread may be blocked at writing metadata to DFS caused
> by a DFS failure, and the CheckpointCoordinator Lock is hold by this thread.
> When the next Checkpoint is triggered, the Checkpoint Timer thread waits for
> the lock to be released. If the previous checkpoint times out, the
> checkpoint timer does not execute the timeout event since it is blocked at
> waiting for the lock. As a result, the previous checkpoint cannot be
> cancelled.
> !image-2023-02-28-11-25-03-637.png|width=1144,height=248!
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