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https://issues.apache.org/jira/browse/FLINK-1427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14285760#comment-14285760
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Ufuk Celebi commented on FLINK-1427:
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[~aalexandrov]: couldn't we just keep the current config parser and let it set
the environment variables?
I actually like the idea. Makes it also easier to test things. Although I think
we should then probably prefix all config parameters with "flink."
> Configuration through environment variables
> -------------------------------------------
>
> Key: FLINK-1427
> URL: https://issues.apache.org/jira/browse/FLINK-1427
> Project: Flink
> Issue Type: Improvement
> Components: Local Runtime
> Environment: Deployment
> Reporter: Max Michels
> Priority: Minor
> Labels: configuration, deployment
>
> Like Hadoop or Spark, etc. Flink should support configuration via shell
> environment variables. In cluster setups, this makes things a lot easier
> because writing config files can be omitted. Many automation tools (e.g.
> Google's bdutil) use (or abuse) this feature.
> For example, to set up the task manager heap size, we would run `export
> FLINK_TASKMANAGER_HEAP=4096` before starting the task manager on a node to
> set the heap memory size to 4096MB.
> Environment variables should overwrite the regular config entries.
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