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https://issues.apache.org/jira/browse/DRILL-5918?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pritesh Maker reassigned DRILL-5918:
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Assignee: Karthikeyan Manivannan
> Allow manual configuration when using
> Runtime.getRuntime().availableProcessors()
> --------------------------------------------------------------------------------
>
> Key: DRILL-5918
> URL: https://issues.apache.org/jira/browse/DRILL-5918
> Project: Apache Drill
> Issue Type: Improvement
> Affects Versions: 1.11.0
> Reporter: Elijah Zupancic
> Assignee: Karthikeyan Manivannan
> Priority: Critical
>
> Currently Drill auto-configures the number of threads in various thread pools
> based on the processor count:
> https://github.com/apache/drill/blob/master/exec/java-exec/src/main/java/org/apache/drill/exec/server/BootStrapContext.java#L110
> https://github.com/apache/drill/blob/master/exec/java-exec/src/main/java/org/apache/drill/exec/server/options/TypeValidators.java#L269
> https://github.com/apache/drill/blob/master/exec/java-exec/src/main/java/org/apache/drill/exec/work/foreman/rm/AbstractResourceManager.java#L55
> https://github.com/apache/drill/blob/master/exec/java-exec/src/main/java/org/apache/drill/exec/work/foreman/rm/DefaultResourceManager.java#L99
> In a number of situations, this configuration is incorrect. In particular,
> the settings aren't correct when [running in a bare-metal
> container](https://docs.google.com/document/d/1WGPGiJtbJZPZBMSD9YHAAz-O4AlAET9qOnS_GeriZtE/edit?usp=sharing)
> because you don't necessarily have access to all of the compute shares or
> memory of the underlying host.
> Ideally, the number of CPUs to use could be specified as a system parameter
> to Drill. This would allow users to configure Drill to their optimal settings.
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