Open Stack

Current list of topics we're going over is:

1)   Extending data in host state
2)   Utilization based scheduling
3)   Whole host allocation capability
4)   Coexistence of different schedulers
5)   Rack aware scheduling
6)   List scheduler hints via API
7)   Host directory service
8)   The future of the scheduler
9)   Network bandwisth aware scheduling (and wider aspects)
10) ensembles/vclusters

We've done a first pass over all of these so next will be follow ups to see where we are.  But first, a new issue was raised at the last meeting:

11) Scheduler scalability

The assertion was that BlueHost has created an OpenStack cluster with ~16,000 nodes and the scheduler didn't scale, they had to throw it out completely and just put in a simple random selection scheduler.  Obviously scalability of the scheduler is a concern so I'd like to spend this meeting discussing this topic.  (If someone from BlueHost could attend that would be great).

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