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https://issues.apache.org/jira/browse/FLINK-17372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann updated FLINK-17372:
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Affects Version/s: (was: 1.10.1)
> SlotManager should expose total required resources
> --------------------------------------------------
>
> Key: FLINK-17372
> URL: https://issues.apache.org/jira/browse/FLINK-17372
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.11.0
> Reporter: Till Rohrmann
> Priority: Major
> Fix For: 1.11.0
>
>
> Currently, the {{SlotManager}} exposes the set of required resources which
> have not been fulfilled via {{SlotManager.getRequiredResources}}. The idea of
> this function is to allow the {{ResourceManager}} to decide whether new
> pods/containers need to be started or not.
> The problem is that once a resource has been registered at the
> {{SlotManager}} it will decrease the set of required resources. If now a
> pod/container fails, then the {{ResourceManager}} won't know whether it needs
> to restart the container or not.
> In order to simplify the interaction, I propose to let the {{SlotManager}}
> announce all of its required resources (pending + registered resources). That
> way the {{ResourceManager}} only needs to compare the set of required
> resources with the set of pending and allocated containers/pods.
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