Spaceman1984 commented on issue #3949: Fix CloudRuntimeException of migrated volume for Volume stats URL: https://github.com/apache/cloudstack/pull/3949#issuecomment-598590681 This is the null pointer on the agent while migrating a volume, happens when stats are run. ``` java.lang.NullPointerException at com.cloud.hypervisor.kvm.storage.LibvirtStoragePool.getPhysicalDisk(LibvirtStoragePool.java:128) at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtGetVolumeStatsCommandWrapper.getVolumeStat(LibvirtGetVolumeStatsCommandWrapper.java:64) at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtGetVolumeStatsCommandWrapper.execute(LibvirtGetVolumeStatsCommandWrapper.java:53) at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtGetVolumeStatsCommandWrapper.execute(LibvirtGetVolumeStatsCommandWrapper.java:41) at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtRequestWrapper.execute(LibvirtRequestWrapper.java:78) at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:1500) at com.cloud.agent.Agent.processRequest(Agent.java:640) at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:1053) at com.cloud.utils.nio.Task.call(Task.java:83) at com.cloud.utils.nio.Task.call(Task.java:29) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) 2020-03-13 09:03:17,681 DEBUG [cloud.agent.Agent] (agentRequest-Handler-2:null) (logid:33b84d86) Seq 1-3499859860420296912: { Ans: , MgmtId: 2130706689, via: 1, Ver: v1, Flags: 10, [{"com.cloud.agent.api.Answer":{"result":false,"details":"java.lang.NullPointerException\n\tat com.cloud.hypervisor.kvm.storage.LibvirtStoragePool.getPhysicalDisk(LibvirtStoragePool.java:128)\n\tat com.cloud.hypervisor.kvm.resource.wrapper.LibvirtGetVolumeStatsCommandWrapper.getVolumeStat(LibvirtGetVolumeStatsCommandWrapper.java:64)\n\tat com.cloud.hypervisor.kvm.resource.wrapper.LibvirtGetVolumeStatsCommandWrapper.execute(LibvirtGetVolumeStatsCommandWrapper.java:53)\n\tat com.cloud.hypervisor.kvm.resource.wrapper.LibvirtGetVolumeStatsCommandWrapper.execute(LibvirtGetVolumeStatsCommandWrapper.java:41)\n\tat com.cloud.hypervisor.kvm.resource.wrapper.LibvirtRequestWrapper.execute(LibvirtRequestWrapper.java:78)\n\tat com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:1500)\n\tat com.cloud.agent.Agent.processRequest(Agent.java:640)\n\tat com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:1053)\n\tat com.cloud.utils.nio.Task.call(Task.java:83)\n\tat com.cloud.utils.nio.Task.call(Task.java:29)\n\tat java.util.concurrent.FutureTask.run(FutureTask.java:266)\n\tat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat java.lang.Thread.run(Thread.java:748)\n","wait":0}}] } ``` I have also configured nfs in /etc/exports to be 2 separate entries: ``` /export *(rw,async,no_root_squash,no_subtree_check) /alternate *(rw,async,no_root_squash,no_subtree_check) ``` I will test #3884 merged with this PR for the error on the management server, I haven't seen it yet.
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