Details
Blocker Description
When upgrading to 4.6 from 4.5 or earlier, the systemvm template that is registered upfront is not marked as SYSTEM and set as the template for the existing systemvms. Therefore, new systemvms work fine but existing ones don't.
RCA is missing code in the upgrade path, as is present when upgrading from 4.4 to 4.5 for example.
The code in the Upgrade442to450.java is not generic, as the name suggests, and simply configures the whole SystemVM and all the existing Domain VMs to use the SystemVM-4.5.0 that was registered. It means that after the upgrade all the routers were marked okay, but they were using the old stuff, from 4.5.0. The attempt to deploy a new VM was also failing with the following error (on the host):
2015-11-07 18:17:31,135 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-4:null) Exit value is 1
2015-11-07 18:17:31,135 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-4:null) Traceback (most recent call last): File "/opt/cloud/bin/update_con
fig.py", line 20, in <module> from merge import QueueFile File "/opt/cloud/bin/merge.py", line 23, in <module> import cs_ip File "/opt/cloud/bin/cs_ip.py", lin
e 19, in <module> from netaddr import *ImportError: No module named netaddr
Why that? Because the KVM host has the new systemvm.iso, which contains all the new python stuff, but the systemvm template, which installs the Guest OS (Debian) is old and does not contain the modules we now need.