On 03/28/2014 05:01 AM, Jesse Pretorius wrote:
On 27 March 2014 20:52, Chris Friesen <chris.frie...@windriver.com <mailto:chris.frie...@windriver.com>> wrote:It'd be nice to be able to do a heat template where you could specify things like "put these three servers on separate hosts from each other, and these other two servers on separate hosts from each other (but maybe on the same hosts as the first set of servers), and they all have to be on the same network segment because they talk to each other a lot and I want to minimize latency, and they all need access to the same shared instance storage for live migration". Surely this can be achieved with: 1) Configure compute hosts with shared storage and on the same switch infrastructure in a host aggregate, with an AZ set in the aggregate (setting the AZ gives visibility to the end-user) 2) Ensure that both the GroupAntiAffinityFilter and AvailabilityZoneFilter are setup on the scheduler 3) Boot the instances using the availability zone and group scheduler hints
Last I checked, heat doesn't support creating server groups. Is it possible to use GroupAntiAffinityFilter without server groups?
I'm thinking of a setup where you may have multiple shared storage zones, such that not all compute nodes have access to the same storage (for performance reasons).
Similarly, in a large environment it's possible that compute nodes don't all have access to the same network.
Chris _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
