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https://issues.apache.org/jira/browse/CLOUDSTACK-6966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14040690#comment-14040690
 ] 

Santhosh Kumar Edukulla commented on CLOUDSTACK-6966:
-----------------------------------------------------

I just ran the below case twice and both the times it was successful.

Delete a Volume unattached to an VM ... === TestName: 
test_09_delete_detached_volume | Status : SUCCESS ===
ok

----------------------------------------------------------------------
Ran 1 test in 73.340s

OK
~    

> Attach volume causes unexpected exception intermittently
> --------------------------------------------------------
>
>                 Key: CLOUDSTACK-6966
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6966
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the 
> default.) 
>            Reporter: Girish Shilamkar
>            Assignee: Santhosh Kumar Edukulla
>
> test_09_delete_detached_volume test fails sometimes while attaching the 
> volume. Upon investigating it was found that unexpected exception is thrown 
> by management server. 
> Log:
> 2014-06-19 07:43:09,198 ERROR [c.c.a.ApiAsyncJobDispatcher] 
> (API-Job-Executor-40:ctx-c775dc91 job-7728) Unexpected exception while 
> executing org.apache.cloudstack.api.
> command.admin.volume.AttachVolumeCmdByAdmin
> java.lang.RuntimeException: Unexpected exception
> at 
> com.cloud.storage.VolumeApiServiceImpl.attachVolumeToVM(VolumeApiServiceImpl.java:1045)
> at sun.reflect.GeneratedMethodAccessor669.invoke(Unknown Source)
> at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> 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 
> 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.$Proxy182.attachVolumeToVM(Unknown Source)
> at 
> org.apache.cloudstack.api.command.admin.volume.AttachVolumeCmdByAdmin.execute(AttachVolumeCmdByAdmin.java:38)
> at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:141)
> at com.cloud.api.ApiAsyncJobDispatcher.runJob(ApiAsyncJobDispatcher.java:108)
> at 
> org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.runInContext(AsyncJobManagerImpl.java:503)
> 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 
> org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.run(AsyncJobManagerImpl.java:460)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:744)
> Caused by: java.lang.RuntimeException: Job failed due to exception Failed to 
> attach volume Test Volume to VM VM-43cf6765-bf73-4c3f-a1b3-24214d7dee93; 
> org.libvirt.Libvi
> rtException: internal error unable to execute QEMU command 
> '__com.redhat_drive_add': Duplicate ID 'drive-virtio-disk1' for drive
> ... 25 more
> 2014-06-19 07:43:09,199 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl] 
> (API-Job-Executor-40:ctx-c775dc91 job-7728) Complete async job-7728, 
> jobStatus: FAILED, resultCode: 530
> , result: org.apache.cloudstack.api.response.ExceptionResponse/null/
> {"uuidList":[],"errorcode":530,"errortext":"Unexpected exception"}
> 2014-06-19 07:43:09,199 INFO [o.a.c.f.j.i.AsyncJobMonitor] 
> (Work-Job-Executor-80:ctx-830fcb84 job-7728/job-7729) Remove job-7729 from 
> job monitoring
> 2014-06-19 07:43:09,203 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl] 
> (API-Job-Executor-40:ctx-c775dc91 job-7728) Done executing 
> org.apache.cloudstack.api.command.admin.volu
> me.AttachVolumeCmdByAdmin for job-7728
> 2014-06-19 07:43:09,207 INFO [o.a.c.f.j.i.AsyncJobMonitor] 
> (API-Job-Executor-40:ctx-c775dc91 job-7728) Remove job-7728 from job 
> monitoring
> 2014-06-19 07:43:09,655 DEBUG [c.c.a.m.AgentManagerImpl] 
> (AgentManager-Handler-6:null) SeqA 9-9704: Processing Seq 9-9704: { Cmd , 
> MgmtId: -1, via: 9, Ver: v1, Flags:
> 11, 
> [{"com.cloud.agent.api.ConsoleProxyLoadReportCommand":{"_proxyVmId":80,"_loadInfo":"
> {\n \"connections\": []\n}
> ","wait":0}}] }
> 2014-06-19 07:43:09,659 DEBUG [c.c.a.m.AgentManagerImpl] 
> (AgentManager-Handler-6:null) SeqA 9-9704: Sending Seq 9-9704: { Ans: , 
> MgmtId: 29066118877352, via: 9, Ver:
> v1, Flags: 100010, 
> [{"com.cloud.agent.api.AgentControlAnswer":{"result":true,"wait":0}}] }



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