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https://issues.apache.org/jira/browse/FLINK-7124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16100231#comment-16100231
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Till Rohrmann commented on FLINK-7124:
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Hi [~tzulitai], what's the state of this issue?
> Allow to rescale JobGraph on JobManager
> ---------------------------------------
>
> Key: FLINK-7124
> URL: https://issues.apache.org/jira/browse/FLINK-7124
> Project: Flink
> Issue Type: Bug
> Components: Distributed Coordination
> Reporter: Till Rohrmann
> Assignee: Tzu-Li (Gordon) Tai
>
> In order to support dynamic scaling, the {{JobManager}} has to be able to
> change the parallelism of the submitted {{JobGraph}}. This basically entails
> that we can change the parallelism settings on the cluster side.
> We already have the functionality that we can change the parallelism if it
> was set to {{ExecutionConfig.PARALLELISM_AUTO_MAX}}. Therefore, I think the
> task is mostly about making sure that things really properly work when
> requesting a parallelism change.
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