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From Zameer Manji <>
Subject Removing default 'rack' constraint
Date Thu, 04 Sep 2014 23:54:19 GMT

A current flaw with Aurora is that it will automatically inject a rack
limit constraint of 1 into a task's scheduling constraints even if the job
was submitted without any constraints [1]. This means that Aurora needs all
Mesos slaves to have a 'rack' attribute, so it can satisfy this scheduling

I don't think there is a very good reason to have this default here as not
everyone can encode a 'rack' value into their Mesos slaves. I propose we
remove this default rack limit and allow Aurora to schedule jobs to Mesos
slaves that do not have a 'rack' attribute set.

Does anyone object to this?


Zameer Manji

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