Re: [Users] oVirt3.0 - locked image when creating VM from template

Hi, I ran in this strange issue in oVirt 3.0: A VM creation from a certain template doesn’t seem to work / show any progress. The image gets locked, event view shows start of VM creation, but nothing changes. Usual deploying time is under 10 minutes Engine log output: 2013-05-29 14:04:25,351 ERROR [org.ovirt.engine.core.bll.SPMAsyncTask] (http--0.0.0.0-8443-3) BaseAsyncTask::AddOrUpdateTaskInDB: Adding/Updating task ba297305 -af24-4533-a238-01f5762b62f4 to DataBase threw an exception.: org.apache.commons.lang.SerializationException: org.codehaus.jackson.map.JsonMappingException: or g.ovirt.engine.core.compat.Guid cannot be cast to [Ljava.lang.Object; (through reference chain: org.ovirt.engine.core.common.action.CreateCloneOfTemplateParame ters["diskImageBase"]->org.ovirt.engine.core.common.businessentities.DiskImage["childrenId"]) at org.ovirt.engine.core.utils.serialization.json.JsonObjectSerializer.writeJsonAsString(JsonObjectSerializer.java:69) [utils-3.0.0-0001.jar:] at org.ovirt.engine.core.utils.serialization.json.JsonObjectSerializer.serialize(JsonObjectSerializer.java:51) [utils-3.0.0-0001.jar:] at org.ovirt.engine.core.dao.AsyncTaskDAODbFacadeImpl$AsyncTaskParameterSource.serializeParameters(AsyncTaskDAODbFacadeImpl.java:74) [engine-dal.jar:] at org.ovirt.engine.core.dao.AsyncTaskDAODbFacadeImpl$AsyncTaskParameterSource.<init>(AsyncTaskDAODbFacadeImpl.java:67) [engine-dal.jar:] at org.ovirt.engine.core.dao.AsyncTaskDAODbFacadeImpl.getTaskParameterSource(AsyncTaskDAODbFacadeImpl.java:99) [engine-dal.jar:] at org.ovirt.engine.core.dao.AsyncTaskDAODbFacadeImpl.save(AsyncTaskDAODbFacadeImpl.java:104) [engine-dal.jar:] at org.ovirt.engine.core.bll.SPMAsyncTask.AddOrUpdateTaskInDB(SPMAsyncTask.java:105) [engine-bll.jar:] at org.ovirt.engine.core.bll.SPMAsyncTask.<init>(SPMAsyncTask.java:22) [engine-bll.jar:] at org.ovirt.engine.core.bll.EntityAsyncTask.<init>(EntityAsyncTask.java:46) [engine-bll.jar:] at org.ovirt.engine.core.bll.AsyncTaskFactory.Construct(AsyncTaskFactory.java:53) [engine-bll.jar:] at org.ovirt.engine.core.bll.AsyncTaskManager.CreateTask(AsyncTaskManager.java:448) [engine-bll.jar:] at org.ovirt.engine.core.bll.CreateCloneOfTemplateCommand.ConcreteCreateTask(CreateCloneOfTemplateCommand.java:99) [engine-bll.jar:] at org.ovirt.engine.core.bll.CommandBase.CreateTask(CommandBase.java:847) [engine-bll.jar:] at org.ovirt.engine.core.bll.CreateCloneOfTemplateCommand.CreateSnapshotInIrsServer(CreateCloneOfTemplateCommand.java:78) [engine-bll.jar:] at org.ovirt.engine.core.bll.CreateSnapshotCommand.executeCommand(CreateSnapshotCommand.java:61) [engine-bll.jar:] at org.ovirt.engine.core.bll.CreateSnapshotFromTemplateCommand.executeCommand(CreateSnapshotFromTemplateCommand.java:82) [engine-bll.jar:] at org.ovirt.engine.core.bll.CommandBase.ExecuteWithoutTransaction(CommandBase.java:621) [engine-bll.jar:] at org.ovirt.engine.core.bll.CommandBase.executeActionInTransactionScope(CommandBase.java:713) [engine-bll.jar:] at org.ovirt.engine.core.bll.CommandBase.runInTransaction(CommandBase.java:982) [engine-bll.jar:] at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInRequired(TransactionSupport.java:144) [utils-3.0.0-0001.jar:] at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInScope(TransactionSupport.java:109) [utils-3.0.0-0001.jar:] at org.ovirt.engine.core.bll.CommandBase.Execute(CommandBase.java:726) [engine-bll.jar:] at org.ovirt.engine.core.bll.CommandBase.ExecuteAction(CommandBase.java:210) [engine-bll.jar:] at org.ovirt.engine.core.bll.Backend.runActionImpl(Backend.java:262) [engine-bll.jar:] at org.ovirt.engine.core.bll.Backend.runInternalAction(Backend.java:240) [engine-bll.jar:] at sun.reflect.GeneratedMethodAccessor161.invoke(Unknown Source) [:1.6.0_24] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_24] at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_24] at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee-7.1.0.Beta1b.jar:] This just happened once, new VM creations with templates are working. The only problem is ,the affecting template is locked now and I don’t know how to free the diskimage (vdsmd of SPM responsible here or just a DB entry?) Thanks in advance! Best, Sven. 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