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From "Hiroaki Kawai (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-1638) Network plugins won't be notified VM migration.
Date Tue, 12 Mar 2013 07:19:18 GMT
Hiroaki Kawai created CLOUDSTACK-1638:
-----------------------------------------

             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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