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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5085) Execute CheckpointCoodinator's state discard calls asynchronously
Date Tue, 22 Nov 2016 10:23:58 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15686312#comment-15686312

ASF GitHub Bot commented on FLINK-5085:

Github user tillrohrmann commented on the issue:

    @StefanRRichter reviewed the backport #2826 of this PR which simply uses a different state
discarding method and gave a +1. Since Travis passes as well, I'll merge 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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