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https://issues.apache.org/jira/browse/FLINK-10078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann closed FLINK-10078.
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Resolution: Won't Do
This approach would complicate the whole state management of the {{Dispatcher}}
component.
> Dispatcher should only block job submission during recovery
> -----------------------------------------------------------
>
> Key: FLINK-10078
> URL: https://issues.apache.org/jira/browse/FLINK-10078
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.5.0
> Reporter: Joey Echeverria
> Priority: Major
>
> The Dispatcher currently doesn't confirm leadership until all jobs are
> recovered. This prevents any operations that require an active Dispatcher
> from working until after job recovery. This is primarily done to prevent race
> conditions between client retries and recovering jobs. An alternative
> approach would be to only block job submission while recovery is happening.
>
> Note: we also need to check that no other RPCs change the internal state in
> such a way that it interferes with the job recovery.
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