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https://issues.apache.org/jira/browse/FLINK-7463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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boshu Zheng reassigned FLINK-7463:
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Assignee: boshu Zheng
> Release nascent workers on slot request timeout
> ------------------------------------------------
>
> Key: FLINK-7463
> URL: https://issues.apache.org/jira/browse/FLINK-7463
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Coordination
> Reporter: Eron Wright
> Assignee: boshu Zheng
> Priority: Major
> Fix For: 1.8.0
>
>
> A slot request causes a new worker to be allocated. If the slot request
> times out or is cancelled before the worker is launched, cancel the worker
> request if possible.
> This is an optimization because an idle slot is eventually released anyway.
> However, I observe that a lot of worker requests pile up in the launch
> coordinator, as the JM keeps making request after request.
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