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https://issues.apache.org/jira/browse/FLINK-5085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15687085#comment-15687085
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ASF GitHub Bot commented on FLINK-5085:
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Github user tillrohrmann commented on the issue:
https://github.com/apache/flink/pull/2825
Rebasing the PR.
> Execute CheckpointCoodinator's state discard calls asynchronously
> -----------------------------------------------------------------
>
> Key: FLINK-5085
> URL: https://issues.apache.org/jira/browse/FLINK-5085
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.2.0, 1.1.3
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Fix For: 1.2.0, 1.1.4
>
>
> The {{CheckpointCoordinator}} discards under certain circumstances pending
> checkpoints or state handles. These discard operations can involve a blocking
> IO operation if the underlying state handle refers to a file which has to be
> deleted. In order to not block the calling thread, we should execute these
> calls in a dedicated IO executor.
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