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From: Serg <kerncore@gmail.com>
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Subject: 3.0.2 - KVM Agent problem? Please help.
Date: Sun, 3 Jun 2012 21:48:11 +0300
Message-Id: <81FF2C0D-BF3C-4E80-9A43-C5CBFB9048EA@gmail.com>
To: cloudstack-dev@incubator.apache.org
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Hi,


How to debug such problem ?
All volumes exist and instances running, but can't to=20

CentOS release 6.2 (Final)
libvirt-0.9.4-23.el6_2.4.x86_64
libvirt-client-0.9.4-23.el6_2.4.x86_64


[root@kvmhost2 snapshot]# tail -10 /var/log/cloud/agent/agent.log
com.cloud.utils.exception.CloudRuntimeException: =
org.libvirt.LibvirtException: Storage volume not found: no storage vol =
with matching name =
'/var/lib/libvirt/images/67033fb9-a432-4162-8b22-d8a7b2aeb100'
	at =
com.cloud.agent.storage.LibvirtStorageAdaptor.getVolume(LibvirtStorageAdap=
tor.java:81)
...cut...
libvir: Storage error : Storage volume not found: no storage vol with =
matching name '/opt/primary/f5b97a37-f8dd-485c-945c-da31d20b9e23'
...cut...
libvir: Storage error : Storage volume not found: no storage vol with =
matching name =
'/var/lib/libvirt/images/58ba9eed-c864-44f3-a987-9d1eaab182e1'

[root@kvmhost2 snapshot]# tail -10 /var/log/cloud/agent/agent.log | awk =
'{print $15}' | xargs file=20
/opt/primary/e371ebb7-8d9e-4c64-83e9-effea15a00e7:            Qemu =
Image, Format: Qcow , Version: 2
/opt/primary/e371ebb7-8d9e-4c64-83e9-effea15a00e7:            Qemu =
Image, Format: Qcow , Version: 2
/opt/primary/e55358fa-8dc5-4070-b3b6-3f4bc01b17ae:            Qemu =
Image, Format: Qcow , Version: 2
/opt/primary/e55358fa-8dc5-4070-b3b6-3f4bc01b17ae:            Qemu =
Image, Format: Qcow , Version: 2
/var/lib/libvirt/images/d49b318c-8bb4-4bb2-a897-1c40ef234d30: Qemu =
Image, Format: Qcow , Version: 2
/var/lib/libvirt/images/d49b318c-8bb4-4bb2-a897-1c40ef234d30: Qemu =
Image, Format: Qcow , Version: 2
/var/lib/libvirt/images/193c378c-80ba-4b82-affe-45c9da0ee839: Qemu =
Image, Format: Qcow , Version: 2
/var/lib/libvirt/images/193c378c-80ba-4b82-affe-45c9da0ee839: Qemu =
Image, Format: Qcow , Version: 2
/var/lib/libvirt/images/58ba9eed-c864-44f3-a987-9d1eaab182e1: Qemu =
Image, Format: Qcow , Version: 2
/var/lib/libvirt/images/58ba9eed-c864-44f3-a987-9d1eaab182e1: Qemu =
Image, Format: Qcow , Version: 2

When I'm try to start instance through UI I'm get the following error :
UI Error pop-up : Resource [Host:34] is unreachable: Host 34: Unable to =
start instance due to Unable to get answer that is of class =
com.cloud.agent.api.StartAnswer

Agent LOG :=20

2012-06-03 20:47:13,397 WARN  =
[resource.computing.LibvirtComputingResource] =
(agentRequest-Handler-2:null) Exception=20
com.cloud.utils.exception.CloudRuntimeException: =
org.libvirt.LibvirtException: Storage volume not found: no storage vol =
with matching name =
'/var/lib/libvirt/images/19d086dd-8229-48c2-aaa7-ea3d218dc5dc'
	at =
com.cloud.agent.storage.LibvirtStorageAdaptor.getVolume(LibvirtStorageAdap=
tor.java:81)
	at =
com.cloud.agent.storage.LibvirtStorageAdaptor.getPhysicalDisk(LibvirtStora=
geAdaptor.java:450)
	at =
com.cloud.agent.storage.LibvirtStoragePool.getPhysicalDisk(LibvirtStorageP=
ool.java:104)
	at =
com.cloud.agent.resource.computing.LibvirtComputingResource.createVbd(Libv=
irtComputingResource.java:2593)
	at =
com.cloud.agent.resource.computing.LibvirtComputingResource.execute(Libvir=
tComputingResource.java:2510)
	at =
com.cloud.agent.resource.computing.LibvirtComputingResource.executeRequest=
(LibvirtComputingResource.java:985)
	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)
2012-06-03 20:47:13,399{GMT} WARN  [cloud.agent.Agent] =
(agentRequest-Handler-2:) Caught:=20
java.lang.NullPointerException
	at =
com.cloud.agent.resource.computing.LibvirtComputingResource.cleanupVMNetwo=
rks(LibvirtComputingResource.java:3664)
	at =
com.cloud.agent.resource.computing.LibvirtComputingResource.handleVmStartF=
ailure(LibvirtComputingResource.java:2416)
	at =
com.cloud.agent.resource.computing.LibvirtComputingResource.execute(Libvir=
tComputingResource.java:2539)
	at =
com.cloud.agent.resource.computing.LibvirtComputingResource.executeRequest=
(LibvirtComputingResource.java:985)
	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)


--
Serg


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