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https://issues.apache.org/jira/browse/FLINK-36836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17902813#comment-17902813
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yuanfenghu edited comment on FLINK-36836 at 12/4/24 2:37 AM:
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h2. Background
In Autoscaler, we typically configure `target.utilization` (default is 0.7) and
`target.utilization.boundary` (default is 0.3) to ensure tasks run in the range
of 40% to 100%. In most scenarios, this configuration will make tasks work very
well, but it is not flexible enough.
For example:
I want tasks to run at 30% to 80% utilization, but I also expect the
utilization to be 50% after Autoscaler adjustments. Obviously, the above two
parameters cannot achieve this.
h2. Solution
As [~gyfora] mentioned, I suggest we need to use `target-utilization.min` and
`target-utilization.max` to replace `target-utilization.boundary` to allow more
flexible configuration.
I think we need to retain the `target-utilization.boundary` configuration item
and add `target-utilization.max` and target-utilization.min to be compatible
with the previous logic
was (Author: JIRAUSER296932):
h2. Background
In Autoscaler, we typically configure `target.utilization` (default is 0.7) and
`target.utilization.boundary` (default is 0.3) to ensure tasks run in the range
of 40% to 100%. In most scenarios, this configuration will make tasks work very
well, but it is not flexible enough.
For example:
I want tasks to run at 30% to 80% utilization, but I also expect the
utilization to be 50% after Autoscaler adjustments. Obviously, the above two
parameters cannot achieve this.
h2. Solution
As [~gyfora] mentioned, I suggest we need to use `target-utilization.min` and
`target-utilization.max` to replace `target-utilization.boundary` to allow more
flexible configuration.
> Autoscaler Supports config the upper and lower limits of target utilization.
> ----------------------------------------------------------------------------
>
> Key: FLINK-36836
> URL: https://issues.apache.org/jira/browse/FLINK-36836
> Project: Flink
> Issue Type: Improvement
> Components: Autoscaler
> Reporter: yuanfenghu
> Priority: Minor
>
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