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https://issues.apache.org/jira/browse/FLINK-6400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15987730#comment-15987730
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Ted Yu commented on FLINK-6400:
-------------------------------
Thanks for the quick action, Stephan
> Lack of protection accessing masterHooks in
> CheckpointCoordinator#triggerCheckpoint
> -----------------------------------------------------------------------------------
>
> Key: FLINK-6400
> URL: https://issues.apache.org/jira/browse/FLINK-6400
> Project: Flink
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Stephan Ewen
> Priority: Minor
> Fix For: 1.3.0
>
>
> Here is related code:
> {code}
> synchronized (triggerLock) {
> ...
> try {
> List<MasterState> masterStates =
> MasterHooks.triggerMasterHooks(masterHooks.values(),
> {code}
> masterHooks is protected by lock in other methods while triggerLock is only
> used in CheckpointCoordinator#triggerCheckpoint()
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