Lei, It is probably because iptables is filtering out the heartbeat traffic at the compute node level. If you are using vlans, it should work without issue however if you are using the flat network model, you need to allow vrrp in your compute node iptable rule sets. See this link.. http://stackoverflow.com/questions/12908701/keepalived-works-well-without-iptables See if that helps you out. Regards, Jason -------------------------- Jason Ford jford at blackmesh.com Drupal/Magento/OpenStack Hosting Solutions http://www.blackmesh.com From: Lei Zhang <zhang.lei.fly at gmail.com<mailto:zhang.lei.fly at gmail.com>> Date: Wednesday, August 7, 2013 10:48 PM To: openstack <openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>> Subject: [Openstack] Can not use keepalived in vms Hi all Is anybody using keepalived in the vms in the Openstack environment successfully? I failed to set it up. And the two of the vm became MASTER status. Could anybody know why it happened? and how to fix this issue? Openstack: Folsom + nova-network OS: ubuntu 12.04 -- Lei Zhang Blog: http://jeffrey4l.github.io twitter/weibo: @jeffrey4l -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20130808/660c46bb/attachment.html>