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https://issues.apache.org/jira/browse/AURORA-662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14125891#comment-14125891
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David Robinson commented on AURORA-662:
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I don't see why this should be configurable, the option shouldn't even exist.
The scheduler should be aware of all failure domains (server, rack, power
distribution, DC) and should schedule jobs to be resilient to these failures.
> Improve Rack Limit Default
> --------------------------
>
> Key: AURORA-662
> URL: https://issues.apache.org/jira/browse/AURORA-662
> Project: Aurora
> Issue Type: Story
> Components: Scheduler
> Reporter: Zameer Manji
> Assignee: Zameer Manji
>
> If a rack limit for a job is unspecified, the scheduler places a default of
> 1. This default is naive and can make large jobs impossible to schedule.
> We should replace this default with something that is little bit smarter. It
> should factor in the size of the job and potentially the number of racks
> available.
> The code that creates the default is
> [here|https://github.com/apache/incubator-aurora/blob/900a2b299347c71f7c7601a3a3d0a3f0f0afbcb7/src/main/java/org/apache/aurora/scheduler/configuration/ConfigurationManager.java#L142-L153].
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