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Posted to issues@flink.apache.org by "Maximilian Michels (Jira)" <ji...@apache.org> on 2023/03/06 18:08:00 UTC

[jira] [Reopened] (FLINK-30575) Autoscaler doesn't scale down on 0 load

     [ https://issues.apache.org/jira/browse/FLINK-30575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maximilian Michels reopened FLINK-30575:
----------------------------------------

> Autoscaler doesn't scale down on 0 load
> ---------------------------------------
>
>                 Key: FLINK-30575
>                 URL: https://issues.apache.org/jira/browse/FLINK-30575
>             Project: Flink
>          Issue Type: New Feature
>          Components: Autoscaler, Kubernetes Operator
>            Reporter: Gyula Fora
>            Assignee: Maximilian Michels
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: kubernetes-operator-1.5.0
>
>
> The logic for computing true processing rates rely on recordsProcessed / recordProcessingTime style computations which do not really work well when everything is 0.
> This leads to no scaling actions when the load suddenly drops to 0. We should handle these special cases and scale the pipeline to some minimal parallelism.



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