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https://issues.apache.org/jira/browse/FLINK-15145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17011632#comment-17011632
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Xintong Song edited comment on FLINK-15145 at 1/15/20 9:32 AM:
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I have come up with a [tuning
report|https://docs.google.com/document/d/1-LravhQYUIkXb7rh0XnBB78vSvhp3ecLSAgsiabfVkk/edit?usp=sharing].
In summary, I would suggest the following changes.
- Change default managed memory fraction from 0.4 to 0.3.
- Change default JVM metaspace size from 128MB to 64MB.
- Change default JVM overhead min size from 128MB to 192MB.
was (Author: xintongsong):
I have come up with a [tuning
report|https://docs.google.com/document/d/1-LravhQYUIkXb7rh0XnBB78vSvhp3ecLSAgsiabfVkk/edit?usp=sharing].
In summary, I would suggest the following changes.
- Change default managed memory fraction from 0.4 to 0.3.
- Change default JVM metaspace size from 128MB to 64MB.
- Change default JVM overhead min size from 128MB to 196MB.
> Tune default values for FLIP-49 TM memory configurations with real production
> jobs.
> -----------------------------------------------------------------------------------
>
> Key: FLINK-15145
> URL: https://issues.apache.org/jira/browse/FLINK-15145
> Project: Flink
> Issue Type: Task
> Components: Runtime / Configuration
> Reporter: Xintong Song
> Assignee: Xintong Song
> Priority: Blocker
> Fix For: 1.10.0
>
>
> In release 1.10, with FLIP-49, we introduced significant changes to the
> TaskExecutor memory model and it's related configuration options / logics.
> Since the model and configuration logics are changed, it is reasonable that
> we also change the default configuration values. Currently, the default
> values are set with the gut feelings and experiences from e2e tests. It would
> be good that we try and tune the configurations with some real production
> jobs, of various scales if possible, before exposing the configurations in
> the release.
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