Wido den Hollander created CLOUDSTACK-1410:
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Summary: Overcommit feature breaks compatibility between 4.0/4.1
management server and 4.2 agent
Key: CLOUDSTACK-1410
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1410
Project: CloudStack
Issue Type: Bug
Security Level: Public (Anyone can view this level - this is the default.)
Components: KVM, Management Server
Affects Versions: 4.1.0, 4.2.0
Environment: Ubuntu 12.04. 4.0 management server, 4.2 agent
Reporter: Wido den Hollander
Assignee: Bharat Kumar
Fix For: 4.2.0
I just updated one of my agents to the 4.2 (master) code and it failed to start
the new instance.
I got a NullPointerException on this piece of code in LibvirtComputingResource:
ctd.setShares(vmTO.getCpus() * vmTO.getMinSpeed());
getMinSpeed() is new, this used to be getSpeed()
The VirtualMachineTO was however changed and getSpeed() was removed.
A 4.0/4.1 management server however sends only the "speed" value instead of
"minSpeed" and "maxSpeed".
This leads to a 4.2 agent not working with 4.0 or 4.1 code.
A couple of suggestions:
- Add getSpeed() (and int speed) back to VirtualMachineTO
- Check if getMinSpeed is empty and fall back to getSpeed if it's NULL
Would that be a acceptable solution?
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