Hi all, I am very much new to the openstack and I am trying to get some hands on experience on openstack. I installed openstack compute, controller, network nodes on single ubuntu 14.04 64 bit server machine. I have installed horizon. From pages of openstack, I failed to launch an instance. I got an error message saying that “*Error:* Failed to launch instance "test": Please try again later [Error: No valid host was found. ]. “ “Nova-manage service list” is showing every thing is fine root at controller:~# nova-manage service list Binary Host Zone Status State Updated_At nova-cert controller internal enabled :-) 2014-10-15 12:51:28 nova-consoleauth controller internal enabled :-) 2014-10-15 12:51:27 nova-scheduler controller internal enabled :-) 2014-10-15 12:51:28 nova-conductor controller internal enabled :-) 2014-10-15 12:51:18 nova-compute controller nova enabled :-) 2014-10-15 12:51:26 Attached the log files for the nova-api, nova-compute, nova-scheduler.log. I have no hint why this error message is coming. Can anyone please help me in resolving this issue.? With Regards, Phani Bhushan PV. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20141015/6ef1a843/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: nova-api.log Type: application/octet-stream Size: 9778 bytes Desc: not available URL: <http://lists.openstack.org/pipermail/openstack/attachments/20141015/6ef1a843/attachment.obj> -------------- next part -------------- A non-text attachment was scrubbed... Name: nova-compute.log Type: application/octet-stream Size: 26921 bytes Desc: not available URL: <http://lists.openstack.org/pipermail/openstack/attachments/20141015/6ef1a843/attachment-0001.obj> -------------- next part -------------- A non-text attachment was scrubbed... Name: nova-scheduler.log Type: application/octet-stream Size: 2876 bytes Desc: not available URL: <http://lists.openstack.org/pipermail/openstack/attachments/20141015/6ef1a843/attachment-0002.obj>