19 articles Openstack

Live Migration failure: Cannot get interface MTU on ‘qbrXXXXXXXX-XX’

Some times, when you are doing a live migration , it will ended up with the following error in the nova-compute.log of hypervisor. The reason for this as follows. The Interface was removed by the user, but LIBVIRT doesnt acknowledged about this. But nova did. So, when nova initiates a live migration, libvirt is looking…

How to check the Status of your Backend Services Mirantis Openstack.

echo “show stat” | socat /var/lib/haproxy/stats stdio | grep BACKEND | awk -F , ‘{print $1, $2, $18}’ Output will be stats BACKEND UP horizon BACKEND UP keystone-1 BACKEND UP keystone-2 BACKEND UP nova-api-1 BACKEND UP nova-api-2 BACKEND UP nova-metadata-api BACKEND UP cinder-api BACKEND UP glance-api BACKEND UP neutron BACKEND UP glance-registry BACKEND UP mysqld…

Find out DHCP ports which are in DOWN state

There is two DHCP servers running in each network created under openstack. Each network will have two DHCP servers. The virtual machines in this network is getting IP Address from these DHCP servers. Some times, the status of these DHCP ports shows down while wer querying them. There is a bug reported in neutron, in…