Stephan Ewen closed FLINK-5215.
    Resolution: Duplicate

Duplicated by FLINK-5218

Closed in favor of the newer issue (which is already referenced in some 

> Close checkpoint streams upon cancellation
> ------------------------------------------
>                 Key: FLINK-5215
>                 URL: https://issues.apache.org/jira/browse/FLINK-5215
>             Project: Flink
>          Issue Type: Bug
>          Components: TaskManager
>    Affects Versions: 1.1.3
>            Reporter: Till Rohrmann
>             Fix For: 1.1.4
> Closing checkpoint streams upon cancellation of a {{Task}} could help to 
> interrupt the main thread being stuck in the {{snapshotState}} method of 
> stateful operator. Otherwise, ff the snapshotState method takes too long to 
> complete, the watch dog will kill the whole {{TaskManager}} terminating all 
> other running tasks as well.

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