[jira] [Updated] (FLINK-7463) Release nascent workers on slot request timeout

["Till Rohrmann (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-7463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Till Rohrmann updated FLINK-7463:
---------------------------------
    Fix Version/s: 1.8.0

> 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 
>            Priority: Major
>             Fix For: 1.7.0, 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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