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https://issues.apache.org/jira/browse/FLINK-3162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15056475#comment-15056475
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Stephan Ewen commented on FLINK-3162:
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I think this is reasonable for standalone setups.
Figuring out what would be a good number of cores per container to request in
YARN is probably a separate issue by itself.
> Configure number of TaskManager slots as ratio of available processors
> ----------------------------------------------------------------------
>
> Key: FLINK-3162
> URL: https://issues.apache.org/jira/browse/FLINK-3162
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Runtime
> Affects Versions: 1.0.0
> Reporter: Greg Hogan
> Priority: Minor
>
> The number of TaskManager slots is currently only configurable by explicitly
> setting {{taskmanager.numberOfTaskSlots}}. Make this configurable by a ratio
> of the number of available processors (for example, "2", for hyperthreading).
> This can work in the same way as {{taskmanager.memory.size}} and
> {{taskmanager.memory.fraction}}.
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