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https://issues.apache.org/jira/browse/FLINK-12528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16847392#comment-16847392
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vinoyang commented on FLINK-12528:
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Hi [~azagrebin] Based on [~till.rohrmann]'s
[suggestion|https://issues.apache.org/jira/browse/FLINK-12526?focusedCommentId=16841232&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16841232],
there are some prior works need to be done.
> Remove progressLock in ExecutionGraph
> -------------------------------------
>
> Key: FLINK-12528
> URL: https://issues.apache.org/jira/browse/FLINK-12528
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Reporter: vinoyang
> Assignee: vinoyang
> Priority: Minor
>
> Since {{ExecutionGraph}} can only be accessed from a single
> thread(FLINK-11417), we can remove the progressLock from {{ExecutionGraph}}.
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