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https://issues.apache.org/jira/browse/FLINK-34311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gyula Fora closed FLINK-34311.
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Resolution: Fixed
merged to main 4342636cdb2c3439389e83cb4fe4366156edfbd7
> Do not change min resource requirements when rescaling for adaptive scheduler
> -----------------------------------------------------------------------------
>
> Key: FLINK-34311
> URL: https://issues.apache.org/jira/browse/FLINK-34311
> Project: Flink
> Issue Type: Improvement
> Components: Kubernetes Operator
> Reporter: Gyula Fora
> Assignee: Gyula Fora
> Priority: Major
> Labels: pull-request-available
> Fix For: kubernetes-operator-1.8.0
>
>
> when applying the rescale api to change parallelism we should not change the
> min parallelism.
> The problem currently is that if we cannot aquire the new resources within
> {{jobmanager.adaptive-scheduler.resource-wait-timeout}} the job will
> completely fail
> The {{jobmanager.adaptive-scheduler.resource-stabilization-timeout}} still
> allows us to wait for quite long if necessary to get the target parallelism
> but failing completely because of the wait timeout seems very unfortunate
> It's best to keep the min resources unchanged and let the adaptive scheduler
> take care of the parallelism changes together with the timeout settings.
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