Sounds like your libvirt can't create a storage pool. Can you try the following command:
1. cat >> storage.xml << EOF <pool type='netfs'> <name>304424d9-db34-40d9-b0a7-3bd689b0b862</name> <uuid>304424d9-db34-40d9-b0a7-3bd689b0b862</uuid> <source> <host name='NFS.DOMAIN.COM'/> <dir path='/opt/secondary'/> </source> <target> <path>/mnt/304424d9-db34-40d9-b0a7-3bd689b0b862</path> </target> </pool> 2. virsh pool-create storage.xml 3. Any error in the above command? If you get the error like "cannot open volume '/mnt/304424d9-db34-40d9-b0a7-3bd689b0b862/template", can you upgrade libvirt to Installed Packages Name : libvirt Arch : x86_64 Version : 0.9.4 Release : 23.el6_2.8 Size : 4.0 M From: Serg [mailto:kernc...@gmail.com] Sent: Tuesday, June 05, 2012 11:48 AM To: Edison Su Cc: cloudstack-dev@incubator.apache.org Subject: Re: 3.0.2 - KVM Agent problem? Please help. Hi , Thanks for your patch. It's solved the critical problem with Re-Start the instances ! =) ( In my setup only HA instances have shared storage ) But problem with snapshot's on "Running Instances" still exist 2012-06-05 19:15:52,853 DEBUG [cloud.agent.Agent] (agentRequest-Handler-2:null) Request:Seq 34-77010656: { Cmd , MgmtId: 207382744522, via: 34, Ver: v1, Flags: 100011, [{"BackupSnapshotCommand":{"prevSnapshotUuid":"/var/lib/libvirt/images/4341f531-bef6-47b6-ae75-2b8d6de63038/i-8-403-VM_ROOT-403_20120605164038","prevBackupUuid":"/snapshots/5/8/442/i-8-403-VM_ROOT-403_20120605164038","isVolumeInactive":false,"vmName":"i-8-403-VM","snapshotId":1746,"pool":{"id":208,"uuid":"c6f1f032-5aad-4983-bc83-0ec1a6b5e32c","host":"111.111.111.111","path":"/var/lib/libvirt/images/","port":0,"type":"Filesystem"},"primaryStoragePoolNameLabel":"c6f1f032-5aad-4983-bc83-0ec1a6b5e32c","snapshotUuid":"/var/lib/libvirt/images/4341f531-bef6-47b6-ae75-2b8d6de63038/i-8-403-VM_ROOT-403_20120605170902","snapshotName":"i-8-403-VM_ROOT-403_20120605170902","secondaryStorageUrl":"nfs://NFS-URL/opt/secondary","dcId":5,"accountId":8,"volumeId":442,"volumePath":"4341f531-bef6-47b6-ae75-2b8d6de63038","wait":10800}}] } Then "Job" create new directory under /mnt/ for access to template ??? 2012-06-05 19:15:53,558 DEBUG [agent.storage.LibvirtStorageAdaptor] (agentRequest-Handler-2:null)org.libvirt.LibvirtException: cannot open volume '/mnt/304424d9-db34-40d9-b0a7-3bd689b0b862/template':Is a directory Full log of job : http://pastebin.com/fE1M1BfS UI : Error Popup " Created snapshot: com.cloud.storage.SnapshotVO$$EnhancerByCGLIB$$4d81b9c7@78ab83a on primary but failed to backup on secondary" Can I provide some additional logs ? -- Serg On Jun 5, 2012, at 12:20 AM, Edison Su wrote: It's a bug in kvm agent code, I fixed the upgrade issue from 2.2.x to 3.0.x, but it only worked for shared storage. You can fix it by update db with the following sql: update volumes set path=SUBSTRING_INDEX(`path`, '/', -1); , then restart mgt server. -----Original Message----- From: Serg [mailto:kernc...@gmail.com] Sent: Monday, June 04, 2012 1:25 PM To: Edison Su Cc: cloudstack-dev@incubator.apache.org<mailto:cloudstack-dev@incubator.apache.org> Subject: Re: 3.0.2 - KVM Agent problem? Please help. Hi, Thanks for your response, I turned on debug logging but nothing new has been discovered. after upgrading from 2.2.14 to 3.0.2 all KVM server with Local Storage behave identically - Unable to re-start the instance ( instance can't be started anymore ) - Make a snapshot for volume. - Can't download the volume For now, back to online such instances I'm can by the following way - import volume of stopped instance as template and the start new instance from Log : libvir: Storage error : Storage volume not found: no storage vol with matching name [root@ /]# virsh vol-list c6f1f032-5aad-4983-bc83-0ec1a6b5e32c | grep 4341f531-bef6-47b6-ae75-2b8d6de63038 4341f531-bef6-47b6-ae75-2b8d6de63038 /var/lib/libvirt/images/4341f531- bef6-47b6-ae75-2b8d6de63038 [root@ /]# qemu-img check /var/lib/libvirt/images/4341f531-bef6-47b6- ae75-2b8d6de63038 No errors were found on the image. Full log output : Log output : http://pastebin.com/dd0Wz22a -- Serg On Jun 4, 2012, at 8:33 PM, Edison Su wrote: Please turn log level to debug(/etc/cloud/agent/log4j-cloud.xml) on your kvm host, then restart cloud-agent, take a look at agent log again. -----Original Message----- From: Serg [mailto:kernc...@gmail.com] Sent: Sunday, June 03, 2012 11:48 AM To: cloudstack-dev@incubator.apache.org<mailto:cloudstack-dev@incubator.apache.org> Subject: 3.0.2 - KVM Agent problem? Please help. Hi, How to debug such problem ? All volumes exist and instances running, but can't to 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(LibvirtStorageA daptor.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 /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 : 2012-06-03 20:47:13,397 WARN [resource.computing.LibvirtComputingResource] (agentRequest-Handler- 2:null) Exception 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(LibvirtStorageA daptor.java:81) at com.cloud.agent.storage.LibvirtStorageAdaptor.getPhysicalDisk(LibvirtSt orageAdaptor.java:450) at com.cloud.agent.storage.LibvirtStoragePool.getPhysicalDisk(LibvirtStora gePool.java:104) at com.cloud.agent.resource.computing.LibvirtComputingResource.createVbd(L ibvirtComputingResource.java:2593) at com.cloud.agent.resource.computing.LibvirtComputingResource.execute(Lib virtComputingResource.java:2510) at com.cloud.agent.resource.computing.LibvirtComputingResource.executeRequ est(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.ja va:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.j ava:603) at java.lang.Thread.run(Thread.java:679) 2012-06-03 20:47:13,399{GMT} WARN [cloud.agent.Agent] (agentRequest- Handler-2:) Caught: java.lang.NullPointerException at com.cloud.agent.resource.computing.LibvirtComputingResource.cleanupVMNe tworks(LibvirtComputingResource.java:3664) at com.cloud.agent.resource.computing.LibvirtComputingResource.handleVmSta rtFailure(LibvirtComputingResource.java:2416) at com.cloud.agent.resource.computing.LibvirtComputingResource.execute(Lib virtComputingResource.java:2539) at com.cloud.agent.resource.computing.LibvirtComputingResource.executeRequ est(LibvirtComputingResource.java:985) at com.cloud.agent.Agent.processRequest(Agent.java:517) at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:827) at com.cloud.utils.nio.Task.run(Task.java:79) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.ja va:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.j ava:603) at java.lang.Thread.run(Thread.java:679) -- Serg
