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https://issues.apache.org/jira/browse/FLINK-35814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17865082#comment-17865082
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Gyula Fora commented on FLINK-35814:
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I am generally in favour of enabling this by default. [~mxm] had some concerns
previously though
> Don't scale up continuously when the throughout cannot be increased after
> scaling up
> ------------------------------------------------------------------------------------
>
> Key: FLINK-35814
> URL: https://issues.apache.org/jira/browse/FLINK-35814
> Project: Flink
> Issue Type: Improvement
> Components: Autoscaler
> Reporter: Rui Fan
> Assignee: Rui Fan
> Priority: Major
>
> h2. Motivation
> Currently, the parallelism will be increased continuously when some cases
> happen. Such as: data skew, bottleneck occurs in other system.
> In these cases, the throughout(processing rate) cannot be increased even if
> we increase the parallelism.
> h2. Solution
> We don't need to scale up the task continuously when the throughout cannot be
> increased after scaling up.
> And it's better to trigger some events to reminder users fix the issue
> manually.
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