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server_name column missing in Instances table of Nova database in Grizzly release


Hi All,

I was running Openstack Multinode setup with Folsom release. I upgraded it
to Grizzly. Due to some reasons I had to format the Controller Node. Now I
have a newly deployed Grizzly controller node and upgraded Compute and
Network nodes. I am facing an issue with this setup which is described

If I check the *INSTANCES* table in *NOVA* database of Folsom release, I
could see that it contains a column "*server_name*" which is now *not
present* in the Grizzly release. Is there a specific reason why this column
is removed from the database? I am facing an issue that the upgraded
Compute node's code is looking for server_name column which is not present
in my Nova database since the node is fresh installed.

Is there a way to completely remove the installed nova-packages for Folsom
release from the node and install the latest Grizzly ones without format?
Most of the times I try apt-get remove <package-name>, I end up messing up
with the setup and libraries.

Your feedback for this issue would be really helpful.

Thanks and Regards
Rahul Sharma

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