Creating a new VM from a backup. Error when creating a snapshot from this VM.

[Thiago Costa <th...@acotel.com>]

Hello,

We are doing the following to offer this feature:

* Create instance A;
* Create volume root snapshot from instance A;
* Create template from this snapshot;
* Create instance B from this template;

This works pretty much the way we expect but when we try to create a VM
snapshot from this instance (created from a backup) we are no longer able
to turn on this VM.

Below is the Cloudstack error:

-2014-12-02 10:48:17,819 DEBUG [c.c.c.CapacityManagerImpl]
(Job-Executor-135:ctx-01d00b6d ctx-3b3177bb) VM state transitted from
:Starting to Stopped with event: OperationFailedvm's original host id: 1
new host id: null host id before state transition: null
2014-12-02 10:48:17,843 ERROR [c.c.a.ApiAsyncJobDispatcher]
(Job-Executor-135:ctx-01d00b6d) Unexpected exception while executing
org.apache.cloudstack.api.command.user.vm.StartVMCmd
java.lang.NullPointerException
        at
com.cloud.vm.VirtualMachineManagerImpl.orchestrateStart(VirtualMachineManagerImpl.java:858)
        at
com.cloud.vm.VirtualMachineManagerImpl.advanceStart(VirtualMachineManagerImpl.java:761)
        at
com.cloud.vm.VirtualMachineManagerImpl.start(VirtualMachineManagerImpl.java:601)
        at
org.apache.cloudstack.engine.cloud.entity.api.VMEntityManagerImpl.deployVirtualMachine(VMEntityManagerImpl.java:237)
        at
org.apache.cloudstack.engine.cloud.entity.api.VirtualMachineEntityImpl.deploy(VirtualMachineEntityImpl.java:207)
        at
com.cloud.vm.UserVmManagerImpl.startVirtualMachine(UserVmManagerImpl.java:3581)
        at
com.cloud.vm.UserVmManagerImpl.startVirtualMachine(UserVmManagerImpl.java:2043)
        at sun.reflect.GeneratedMethodAccessor601.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:622)
        at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
        at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
        at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
        at
com.cloud.event.ActionEventInterceptor.invoke(ActionEventInterceptor.java:50)
        at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:161)
        at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
        at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
        at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
        at com.sun.proxy.$Proxy169.startVirtualMachine(Unknown Source)
        at
org.apache.cloudstack.api.command.user.vm.StartVMCmd.execute(StartVMCmd.java:121)
        at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:161)
        at
com.cloud.api.ApiAsyncJobDispatcher.runJobInContext(ApiAsyncJobDispatcher.java:109)
        at
com.cloud.api.ApiAsyncJobDispatcher$1.run(ApiAsyncJobDispatcher.java:66)
        at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
        at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
        at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
        at
com.cloud.api.ApiAsyncJobDispatcher.runJob(ApiAsyncJobDispatcher.java:63)
        at
org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.runInContext(AsyncJobManagerImpl.java:509)
        at
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
        at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
        at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
        at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
        at
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
        at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:701)
2014-12-02 10:48:17,845 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(Job-Executor-135:ctx-01d00b6d) Complete async job-1804, jobStatus: FAILED,
resultCode: 530, result:
org.apache.cloudstack.api.response.ExceptionResponse/null/{"uuidList":[],"errorcode":530}
2014-12-02 10:48:17,855 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(Job-Executor-135:ctx-01d00b6d) Done executing
org.apache.cloudstack.api.command.user.vm.StartVMCmd for job-1804

Can you guys help me?

Thanks!
Thiago Costa