2011/5/23 Mark Washenberger <[email protected]>: > If I understand the features correctly, their implementation in nova seems > straightforward. However, I am still a little curious about their necessity. > For load balancing, what is the difference between a single request for N > instances and N requests for a single instance each?
Scheduling. If you ask for 10 instances in one call, they're scheduled as a set. The entire call either fails or succeeds and all the instances land in the same availability zone. 10 individual requests will cause each of the instances to be scheduled individually (partial failures and being scattered across multiple availability zones being the major problems). -- Soren Hansen | http://linux2go.dk/ Ubuntu Developer | http://www.ubuntu.com/ OpenStack Developer | http://www.openstack.org/ _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
