Openstack Live Migration failure: operation failed

Error in the error log nova/compute

2014-06-25 01:32:50.752 2703 ERROR nova.virt.libvirt.driver [-]
[instance: fc118bff-77a3-4300-ab27-371a314b819f] Live Migration failure: operation failed: Failed to connect to remote libvirt URI qemu+tcp://compute2/system

Try updating the libvirt configurations. Modify /etc/libvirt/libvirtd.conf. To see all of the available options

1. 
   

   before : #listen_tls = 0
   after : listen_tls = 0
   
   before : #listen_tcp = 1
   after : listen_tcp = 1
   
   add: auth_tcp = "none"

   
   

Openstack+ Shared Storage(NFS) +Permission denied

While setting up Openstack with shared storage , If we get following error while creating a instance ensure that the server is in permissive selinux mode with

getenfonce

and if that too doesn't work try giving 755 permission to the mounted directory here its /var/lib/nova

2014-06-24 18:58:20.642 5119 TRACE nova.compute.manager [instance: a7996f1f-9af2-4410-8351-139d43f00786] libvirtError: internal error Process exited while reading console log output: qemu-kvm: -chardev file,id=charserial0,path=/var/lib/nova/instances/a7996f1f-9af2-4410-8351-139d43f00786/console.log: Could not open '/var/lib/nova/instances/a7996f1f-9af2-4410-8351-139d43f00786/console.log': Permission denied

 

At last if nothing else worked , tell libvirtd/qemu to use root user to access datas.
[root@compute nova]# cat /etc/libvirt/qemu.conf |grep root
user = "root"
#group = "root"
[root@compute nova]#

Openstack Icehouse - VNC console not connecting to server

Make sure that the setting in the controller and compute node are correct and also double check the IP's.  And replace the host-name with the IP.

controller - 192.168.216.130

running:
nova-consoleauth
nova-novncproxy

nova.conf:
novncproxy_host=0.0.0.0
novncproxy_port=6080
novncproxy_base_url=http://192.168.216.130:6080/vnc_auto.html

compute - 192.168.216.140

running:
nova-compute

nova.conf:
vnc_enabled=True
novncproxy_base_url=http://192.168.216.130:6080/vnc_auto.html
vncserver_listen=0.0.0.0
vncserver_proxyclient_address=192.168.216.140