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From Zameer Manji <zma...@twopensource.com>
Subject Re: Removing Aurora's special handling of the 'rack' attribute
Date Tue, 07 Oct 2014 00:24:47 GMT
I currently don't plan on removing 'host' right now or in the future. If
there is a need to remove it I would prefer to tackle it later.

On Mon, Oct 6, 2014 at 5:13 PM, Kevin Sweeney <kevints@apache.org> wrote:

> Will 'host' be deprecated as well?
>
> On Mon, Oct 6, 2014 at 4:30 PM, Zameer Manji <zmanji@twopensource.com>
> wrote:
>
> > I have put up a review <https://reviews.apache.org/r/26391/> which
> removes
> > the special casing and handling of the ‘rack’ constraint. This is a
> > breaking change because Aurora will no longer inject a rack constraint
> of 1
> > if a job omits a rack constraint value. However this means that Aurora
> will
> > be able to schedule jobs on to slaves which don’t have the ‘rack’
> attribute
> > and slaves that want to accept tasks from Aurora don’t need to have the
> > ‘rack’ attribute set.
> >
> > Before the next release of Aurora (0.6.0) you should check if you are
> > relying on the injected value for scheduling decisions and if so
> explicitly
> > encode a rack limit of 1 in the job's aurora config.
> > ​
> > --
> > Zameer Manji
> >
>



-- 
Zameer Manji

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