[openstack-dev] Gantt project

Dugger, Donald D donald.d.dugger at intel.com
Tue Aug 12 06:09:16 UTC 2014

This is to make sure that everyone knows about the Gantt project and to make sure that no one has a strong aversion to what we are doing.

The basic goal is to split the scheduler out of Nova and create a separate project that, ultimately, can be used by other OpenStack projects that have a need for scheduling services.  Note that we have no intention of forcing people to use Gantt but it seems silly to have a scheduler inside Nova, another scheduler inside Cinder, another scheduler inside Neutron and so forth.  This is clearly predicated on the idea that we can create a common, flexible scheduler that can meet everyone's needs but, as I said, theirs is no rule that any project has to use Gantt, if we don't meet your needs you are free to roll your own scheduler.

We will start out by just splitting the scheduler code out of Nova into a separate project that will initially only be used by Nova.  This will be followed by enhancements, like a common API, that can then be utilized by other projects.

We are cleaning up the internal interfaces in the Juno release with the expectation that early in the Kilo cycle we will be able to do the split and create a Gantt project that is completely compatible with the current Nova scheduler.

Hopefully our initial goal (a separate project that is completely compatible with the Nova scheduler) is not too controversial but feel free to reply with any concerns you may have.

Don Dugger
"Censeo Toto nos in Kansa esse decisse." - D. Gale
Ph: 303/443-3786
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