Hello, I've read the documentation about Openstack HA (http://docs.openstack.org/high-availability-guide/content/index.html) and I successfully implemented the active/passive model (with corosync/pacemaker) for the two services Keystone and Glance (MySQL HA is based on Percona-XtraDB multi-master). I'd like to know from the experts, which one is the best (and possibly why) model for HA, between active/passive and active/active, basing on their usage experience (that is for sure longer than mine). thanks, Alvise -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20131126/cd2b501d/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 1756 bytes Desc: not available URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20131126/cd2b501d/attachment.bin>