Snapshot failed after upgrade to 3.0.2 from 2.2.14 ( KVM )

[Serg]

Hi, 

Local storage used.
NFS used as secondary storage.

After upgrade from 2.2.14 to 3.0.2 snapshots has failed with the following 
error : 

Agent log : 

com.cloud.utils.exception.CloudRuntimeException: org.libvirt.LibvirtException: 
Storage volume not found: no storage vol with matching name 
'/var/lib/libvirt/images/e4834e2b-884b-4f6d-97a6-eae509d644e3'
        at 
com.cloud.agent.storage.LibvirtStorageAdaptor.getVolume(LibvirtStorageAdaptor.java:81)
        at 
com.cloud.agent.storage.LibvirtStorageAdaptor.getPhysicalDisk(LibvirtStorageAdaptor.java:450)
        at 
com.cloud.agent.storage.LibvirtStoragePool.getPhysicalDisk(LibvirtStoragePool.java:104)
        at 
com.cloud.agent.resource.computing.LibvirtComputingResource.execute(LibvirtComputingResource.java:1284)
        at 
com.cloud.agent.resource.computing.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:965)
        at com.cloud.agent.Agent.processRequest(Agent.java:517)
        at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:827)
        at com.cloud.utils.nio.Task.run(Task.java:79)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:679)


Volume exist and instance running :

[root@kvmhost2 /]# ls -al 
/var/lib/libvirt/images/e4834e2b-884b-4f6d-97a6-eae509d644e3
-rw-------. 1 root root 2664431616 Jun  3 16:54 
/var/lib/libvirt/images/e4834e2b-884b-4f6d-97a6-eae509d644e3