[jira] [Created] (CLOUDSTACK-2893) The Agent attempts to re-create a already existing Libvirt Storage pool when creating a volume

["Wido den Hollander (JIRA)" <ji...@apache.org>]

Wido den Hollander created CLOUDSTACK-2893:
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             Summary: The Agent attempts to re-create a already existing Libvirt Storage pool when creating a volume
                 Key: CLOUDSTACK-2893
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-2893
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: KVM
    Affects Versions: 4.1.0
         Environment: - Ubuntu 12.04.2
- Libvirt 1.0.2 (Cloud Archive PPA from Canonical)
- CloudStack 4.1
            Reporter: Wido den Hollander
             Fix For: 4.1.1


When trying to deploy a new Instance I saw the following Exception in my logs:

2013-06-07 08:19:18,832 DEBUG [cloud.agent.Agent] (agentRequest-Handler-7:null) Processing command: com.cloud.agent.api.storage.CreateCommand

2013-06-07 08:19:18,840 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-7:null) Failed to create volume: com.cloud.utils.exception.CloudRuntimeException: org.libvirt.LibvirtException: Requested operation is not valid: Target '/mnt/52801816-fe44-3a2b-a147-bb768eeea295' is already mounted

2013-06-07 08:19:18,841 DEBUG [cloud.agent.Agent] (agentRequest-Handler-7:null) Seq 12-477959384:  { Ans: , MgmtId: 207376724852, via: 12, Ver: v1, Flags: 110, [{"storage.CreateAnswer":{"requestTemplateReload":false,"result":false,"details":"Exception: com.cloud.utils.exception.CloudRuntimeException\nMessage: org.libvirt.LibvirtException: Requested operation is not valid: Target '/mnt/52801816-fe44-3a2b-a147-bb768eeea295' is already mounted\nStack: com.cloud.utils.exception.CloudRuntimeException: org.libvirt.LibvirtException: Requested operation is not valid: Target '/mnt/52801816-fe44-3a2b-a147-bb768eeea295' is already mounted\n\tat com.cloud.hypervisor.kvm.storage.LibvirtStorageAdaptor.getStoragePool(LibvirtStorageAdaptor.java:427)\n\t
at com.cloud.hypervisor.kvm.storage.KVMStoragePoolManager.getStoragePool(KVMStoragePoolManager.java:71)\n\t
at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.execute(LibvirtComputingResource.java:1271)\n\t
at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:1072)\n\tat com.cloud.agent.Agent.processRequest(Agent.java:525)\n\t
at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:852)\n\tat com.cloud.utils.nio.Task.run(Task.java:83)\n\tat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)\n\tat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)\n\tat java.lang.Thread.run(Thread.java:679)\n","wait":0}}] }


The Agent seems to try and create the storage pool again and Libvirt will try to mount it, but it is already mounted.

The Storage pool is actually already running on that Hypervisor, but there seems to be a miscommuncation between libvirt and the Agent.


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