[Openstack-operators] deprecated connection_type in nova.conf

Sean Dague sdague at linux.vnet.ibm.com
Tue Jul 17 14:47:19 UTC 2012

As we've been talking about deprecation recently, I wanted to make sure 
that folks were aware of a change in Folsom that they'll need to take 
action in by Grizzly. This is cross posted to operators to make sure 
users see this.

The connection_type parameter in nova.conf is deprecated for Folsom. 
This means it will still work as it did in Essex, but you'll get a 
warning log message about using it. It was the last module loader in 
nova that wasn't dynamic.

This is replaced by compute_driver, which takes the class name of the 
virt driver to load. It is using the new import_object_ns() function, 
which means if the compute driver is in the nova.virt namespace you 
don't need to include that part.


is completely valid.

All the code for this is in folsom already, devstack defaults to the 
above on new installs (as of a week or so ago), and most of the docs 
referencing connection_type have been changed (need a couple more 
changes today).

connection_type support will be removed in master as soon as Folsom is 
branched off, so it will be gone in Grizzly. So if you don't change your 
configs for Folsom (which you don't need to do), you will need to change 
them in Grizzly.


Sean Dague
IBM Linux Technology Center
email: sdague at linux.vnet.ibm.com
alt-email: sldague at us.ibm.com

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