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https://issues.apache.org/jira/browse/FLINK-1299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14234096#comment-14234096
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Stephan Ewen commented on FLINK-1299:
-------------------------------------

Might be a good idea. In local execution, that is effectively what happens.

How realistic is it that someone sets up a Flink cluster without configuring 
the head size for the workers?

On the other hand, it would not hurt, I guess...

> Remove default values for JobManager and TaskManager heap sizes
> ---------------------------------------------------------------
>
>                 Key: FLINK-1299
>                 URL: https://issues.apache.org/jira/browse/FLINK-1299
>             Project: Flink
>          Issue Type: Improvement
>          Components: Build System
>            Reporter: Ufuk Celebi
>            Priority: Minor
>
> Currently, the default config contains fixed values for both the job manager 
> and the task manager heap sizes. I propose to comment both lines out and let 
> the JVM set -Xms and -Xms automatically.
> This should give a better out of the box experience when trying out Flink 
> locally or on a cluster.



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