Hi all, we have the following setup: - Openstack Ocata deployed with Openstack Ansible (v15.1.7) - 66 compute nodes, each having between 50 and 150 VMs, depending on their hardware configuration - we don't use Ceilometer (so not adding extra load on RabbitMQ cluster) - using Openvswitch HA with DVR - all messaging are going through a 3 servers RabbitMQ cluster - we now have 3 CCs hosting (initially had 2) hosting every other internal service
What happens is, when we create a large number of VMs (it's something we do on a daily basis, just to test different types of VMs and apps, around 300 VMs), there are some of them that don't get the network interface attached in a reasonable time. After investigating, we can see that Neutron Openvswitch agent sees the port attached to the server, from an Openstack point of view, I can see the tap interface created in Openvswitch using both its logs and dmesg, but I can see nova attaching the interface after a huge amount of time. (I could see even 45 minutes delay) Since I can't see any reasonable errors I could take care of, my last chance is this mailing list. Only thing I can think of, is that maybe libvirt is not able to attach the interface in a reasonable amount of time. But still, 45 minutes is way too much. At the moment: vif_plugging_is_fatal = True vif_plugging_timeout = 600 (modified from default 300s) That's because we needed VMs with networking. Otherwise, if either with error, either with no network, it's the same thing for us. Thanks, -- Radu Popescu <radu.pope...@emag.ro<mailto:radu.pope...@emag.ro>>
_______________________________________________ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
