[jira] [Resolved] (FLINK-5962) Cancel checkpoint canceller tasks in CheckpointCoordinator

["Stephan Ewen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-5962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephan Ewen resolved FLINK-5962.
---------------------------------
       Resolution: Fixed
    Fix Version/s: 1.2.1
                   1.3.0

Fixed in
  - 1.3.0 via 70252f3468916758e8bc456bbf482549c38ad7ff
  - 1.2.1 via 9d59e008d8849cdfe2daf302e251454435bb997f

> Cancel checkpoint canceller tasks in CheckpointCoordinator
> ----------------------------------------------------------
>
>                 Key: FLINK-5962
>                 URL: https://issues.apache.org/jira/browse/FLINK-5962
>             Project: Flink
>          Issue Type: Bug
>          Components: State Backends, Checkpointing
>    Affects Versions: 1.2.0, 1.3.0
>            Reporter: Till Rohrmann
>            Assignee: Stephan Ewen
>            Priority: Critical
>             Fix For: 1.3.0, 1.2.1
>
>
> The {{CheckpointCoordinator}} register a canceller task for each running checkpoint. The canceller task's responsibility is to cancel a checkpoint if it takes too long to complete. We should cancel this task as soon as the checkpoint has been completed, because otherwise we will keep many canceller tasks around. This can eventually lead to an OOM exception.



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