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https://issues.apache.org/jira/browse/FLINK-4437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15433417#comment-15433417
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ASF GitHub Bot commented on FLINK-4437:
---------------------------------------
GitHub user tedyu opened a pull request:
https://github.com/apache/flink/pull/2409
FLINK-4437 Lock evasion around lastTriggeredCheckpoint may lead to lost
updates to related fields
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You can merge this pull request into a Git repository by running:
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Alternatively you can review and apply these changes as the patch at:
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This closes #2409
----
commit 682bf10a70789c76317d460a9c994ebf00f5a516
Author: tedyu <yuzhih...@gmail.com>
Date: 2016-08-23T19:10:03Z
FLINK-4437 Lock evasion around lastTriggeredCheckpoint may lead to lost
updates to related fields
----
> Lock evasion around lastTriggeredCheckpoint may lead to lost updates to
> related fields
> --------------------------------------------------------------------------------------
>
> Key: FLINK-4437
> URL: https://issues.apache.org/jira/browse/FLINK-4437
> Project: Flink
> Issue Type: Bug
> Reporter: Ted Yu
>
> In CheckpointCoordinator#triggerCheckpoint():
> {code}
> // make sure the minimum interval between checkpoints has passed
> if (lastTriggeredCheckpoint + minPauseBetweenCheckpoints > timestamp)
> {
> {code}
> If two threads evaluate 'lastTriggeredCheckpoint + minPauseBetweenCheckpoints
> > timestamp' in close proximity before lastTriggeredCheckpoint is updated,
> the two threads may have an inconsistent view of "lastTriggeredCheckpoint"
> and updates to fields correlated with "lastTriggeredCheckpoint" may be lost.
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