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Posted to issues@flink.apache.org by "Zhanghao Chen (Jira)" <ji...@apache.org> on 2023/04/25 11:47:00 UTC

[jira] [Created] (FLINK-31936) Support setting scale up max factor

Zhanghao Chen created FLINK-31936:
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             Summary: Support setting scale up max factor
                 Key: FLINK-31936
                 URL: https://issues.apache.org/jira/browse/FLINK-31936
             Project: Flink
          Issue Type: Improvement
          Components: Autoscaler
            Reporter: Zhanghao Chen


Currently, only scale down max factor is supported to be configured. We should also add a config for scale up max factor as well. In many cases, a job's performance won't improve after scaling up due to external bottlenecks. Although we can detect ineffective scaling up would block further scaling, but it already hurts if we scale too much in a single step which may even burn out external services.



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