Hiroaki Kawai created CLOUDSTACK-1638:
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Summary: Network plugins won't be notified VM migration.
Key: CLOUDSTACK-1638
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1638
Project: CloudStack
Issue Type: Bug
Security Level: Public (Anyone can view this level - this is the default.)
Components: Management Server
Affects Versions: 4.2.0
Reporter: Hiroaki Kawai
The location of the virtual machine is provided by DeployDestination, which
will be passed in NetworkGuru#reserve and NetworkElement#prepare.
During the virtual machine migration, it actually changes DeployDestination and
it looks like that it will tell that event to network components as it has
NetworkManager#prepareNicForMigration. The problem is that althogh the
interface has that method, NetworkManagerImpl does not tell the
DeployDestination changes to network components.
So IMHO, we need to add calls of NetworkGuru#reserve and NetworkElement#prepare
in NetworkManagerImpl#prepareNicForMigration . And then, we also need to add
calls NetworkGuru#release and NetworkElement#release after the migration,
otherwise the network resources that plugin reserved will be kept even when the
vm leaves off.
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