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From Rafael Weingärtner <rafaelweingart...@gmail.com>
Subject Re: Timeout with live migration
Date Tue, 13 Oct 2015 01:46:42 GMT
I thought you using the command  “migrateVirtualMachineWithVolume” but it
seems that you are using “migrateVolume” command from ACS's API.


For the code I debugged “migrateVirtualMachineWithVolume”, the parameter
3600, means 1 hour of timeout.

For the “migrateVolume” is the same, they both end up in
“com.cloud.hypervisor.xen.resource.XenServer610Resource.execute(MigrateVolumeCommand)”,
and in that method the parameter is the same.


If your parameter is set to 36000 (10 hours) I do not see why you are
getting the exception after 2 hours.

Did you restart the management servers after you changed the parameter?

On Mon, Oct 12, 2015 at 10:31 PM, Ryan Farrington <rfarrington@remitdata.com
> wrote:

> Here is the full log, including the stack for the exception, that we get
> at the 2 hour mark. as for the migratewait it is set to 36000 which should
> be 10 hours.
>
> 2015-10-12 18:41:20,137 DEBUG [c.c.a.m.DirectAgentAttache]
> (DirectAgent-323:ctx-6d42edd7) Seq 31-1023875267: Executing request
> 2015-10-12 18:41:20,457 DEBUG [c.c.a.m.AgentAttache]
> (Job-Executor-63:ctx-f7b6817d ctx-c6b92515) Seq 38-996939857: Waiting some
> more time because this is the current command
> 2015-10-12 18:41:20,457 INFO  [c.c.u.e.CSExceptionErrorCode]
> (Job-Executor-63:ctx-f7b6817d ctx-c6b92515) Could not find exception:
> com.cloud.exception.OperationTimedoutException in error code list for
> exceptions
> 2015-10-12 18:41:20,465 WARN  [c.c.a.m.AgentAttache]
> (Job-Executor-63:ctx-f7b6817d ctx-c6b92515) Seq 38-996939857: Timed out on
> Seq 38-996939857:  { Cmd , MgmtId: 42756806312036, via: 38(xen-nc-bc2b7),
> Ver: v1, Flags: 100111,
> [{"com.cloud.agent.api.storage.MigrateVolumeCommand":{"volumeId":808,"volumePath":"0cd3ec8c-9fa9-4caf-8380-1a85cdfd0958","pool":{"id":246,"uuid":"VNX_PR5_LUN2003","host":"localhost","path":"/VNX_PR5_LUN2003","port":0,"type":"PreSetup"},"attachedVmName":"i-34-311-VM","wait":0}}]
> }
> 2015-10-12 18:41:20,465 DEBUG [c.c.a.m.AgentAttache]
> (Job-Executor-63:ctx-f7b6817d ctx-c6b92515) Seq 38-996939857: Cancelling.
> 2015-10-12 18:41:20,465 DEBUG [c.c.a.m.AgentAttache]
> (Job-Executor-63:ctx-f7b6817d ctx-c6b92515) Seq 38-996939857: No more
> commands found
> 2015-10-12 18:41:20,465 DEBUG [o.a.c.s.RemoteHostEndPoint]
> (Job-Executor-63:ctx-f7b6817d ctx-c6b92515) Failed to send command, due to
> Agent:38, com.cloud.exception.OperationTimedoutException: Commands
> 996939857 to Host 38 timed out after 7200
> 2015-10-12 18:41:20,471 DEBUG [o.a.c.s.m.AncientDataMotionStrategy]
> (Job-Executor-63:ctx-f7b6817d ctx-c6b92515) copy failed
> com.cloud.utils.exception.CloudRuntimeException: Failed to send command,
> due to Agent:38, com.cloud.exception.OperationTimedoutException: Commands
> 996939857 to Host 38 timed out after 7200
>         at
> org.apache.cloudstack.storage.RemoteHostEndPoint.sendMessage(RemoteHostEndPoint.java:116)
>         at
> org.apache.cloudstack.storage.motion.AncientDataMotionStrategy.migrateVolumeToPool(AncientDataMotionStrategy.java:382)
>         at
> org.apache.cloudstack.storage.motion.AncientDataMotionStrategy.copyAsync(AncientDataMotionStrategy.java:421)
>         at
> org.apache.cloudstack.storage.motion.DataMotionServiceImpl.copyAsync(DataMotionServiceImpl.java:70)
>         at
> org.apache.cloudstack.storage.volume.VolumeServiceImpl.migrateVolume(VolumeServiceImpl.java:931)
>         at
> com.cloud.storage.VolumeApiServiceImpl.liveMigrateVolume(VolumeApiServiceImpl.java:1680)
>         at
> com.cloud.storage.VolumeApiServiceImpl.orchestrateMigrateVolume(VolumeApiServiceImpl.java:1666)
>         at
> com.cloud.storage.VolumeApiServiceImpl.migrateVolume(VolumeApiServiceImpl.java:1622)
>         at sun.reflect.GeneratedMethodAccessor335.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
> 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.$Proxy196.migrateVolume(Unknown Source)
>         at
> org.apache.cloudstack.api.command.user.volume.MigrateVolumeCmd.execute(MigrateVolumeCmd.java:103)
>         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)
> 2015-10-12 18:41:20,479 WARN  [o.a.c.s.d.ObjectInDataStoreManagerImpl]
> (Job-Executor-63:ctx-f7b6817d ctx-c6b92515) Unsupported data object
> (VOLUME,
> org.apache.cloudstack.storage.datastore.PrimaryDataStoreImpl@4fa7a45f),
> no need to delete from object in store ref table
> 2015-10-12 18:41:20,479 DEBUG [c.c.s.VolumeApiServiceImpl]
> (Job-Executor-63:ctx-f7b6817d ctx-c6b92515) migrate volume
> failed:com.cloud.utils.exception.CloudRuntimeException: Failed to send
> command, due to Agent:38, com.cloud.exception.OperationTimedoutException:
> Commands 996939857 to Host 38 timed out after 7200
> 2015-10-12 18:41:20,480 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
> (Job-Executor-63:ctx-f7b6817d) Complete async job-5257, jobStatus: FAILED,
> resultCode: 530, result:
> org.apache.cloudstack.api.response.ExceptionResponse/null/{"uuidList":[],"errorcode":530,"errortext":"Failed
> to migrate volume"}
> 2015-10-12 18:41:20,486 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
> (Job-Executor-63:ctx-f7b6817d) Done executing
> org.apache.cloudstack.api.command.user.volume.MigrateVolumeCmd for job-5257
> 2015-10-12 18:41:20,489 INFO  [o.a.c.f.j.i.AsyncJobMonitor]
> (Job-Executor-63:ctx-f7b6817d) Remove job-5257 from job monitoring
>
>
>
>
>
>
>
>
>
>
>
> ________________________________________
> From: Rafael Weingärtner [rafaelweingartner@gmail.com]
> Sent: Monday, October 12, 2015 8:24 PM
> To: users@cloudstack.apache.org
> Subject: [Questionable]  Re: [Questionable] Re: Timeout with live migration
>
> Now I understand what you are doing, I am familiar with that concept (live
> migration of VM within a cluster, having the VHD being moved from one SR to
> another).
>
> I just got confused when I read live migration of volumes (a volume does
> not run by itself, so that why I asked a little for some more information).
>
> Looking at the source code this is the variable used to control the
> timeout:
> "long timeout = (_migratewait) * 1000L;"
>
> The value of "_migratewait" is taken from this parameter:
> value = (String) params.get("migratewait");
> _migratewait = NumbersUtil.parseInt(value, 3600);
>
> Therefore, the name of the parameter to be configured is "migratewait", the
> default value is 3600.
>
>
> BTW1: I think that is a terrible parameter name. We should refactor that,
> could you open a Jira ticket for that?
>
> BTW2: that error message you posted does not seem to be related to the
> migration timeout; hence, in the code if the copy times out the message
> would be:
> "Async " + timeout/1000 + " seconds timeout for task " + task.toString()"
>
> Maybe because it throws a "Types.BadAsyncResult(msg)" and that might be
> translated into that message, or that might not be related to the problem
> itself, and you just thought that it was.
>
>
> Does it help you?
>
>
> On Mon, Oct 12, 2015 at 10:00 PM, Ryan Farrington <
> rfarrington@remitdata.com
> > wrote:
>
> > Hypervisor:  XenServer
> >
> > We are moving a data volume from one storage onto another without
> shutting
> > down the VM cause that would just be silly and a triplication of effort
> > with the whole copying to secondary storage and then back off again. The
> > volume is staying in the same cluster just moving to a different Primary
> > storage (or SR in the XenServer vernacular)
> >
> > If you are familiar with ESX this is a "Storage VMotion" where as in
> > XenServer it is called "Storage XenMotion".
> >
> > ________________________________________
> > From: Rafael Weingärtner [rafaelweingartner@gmail.com]
> > Sent: Monday, October 12, 2015 7:53 PM
> > To: users@cloudstack.apache.org
> > Subject: [Questionable]  Re: Timeout with live migration
> >
> > what do you mean with livre migrating data volume ?!
> > I understand a live migration of a VM, but volumes...
> >
> > do you mean live migrating a VM that has a volume attached?
> > are you migrating that volume to a different cluster? or just a different
> > storage in the same cluster?
> > What hypervisor are you using ?
> >
> >
> > On Mon, Oct 12, 2015 at 9:47 PM, Ryan Farrington <
> > rfarrington@remitdata.com>
> > wrote:
> >
> > > Live migrating a data volume. We are purely on shared storage so no
> local
> > > storage is involved.
> > >
> > > ________________________________________
> > > From: Rafael Weingärtner [rafaelweingartner@gmail.com]
> > > Sent: Monday, October 12, 2015 7:37 PM
> > > To: users@cloudstack.apache.org
> > > Subject: [Questionable]  Re: Timeout with live migration
> > >
> > > Are you live migrating a VM, or migrating a volume of a stopped VM to a
> > > different primary storage?
> > >
> > > If it is a running VM, is the VM allocated in a shared storage or local
> > > storage?
> > >
> > > On Mon, Oct 12, 2015 at 9:17 PM, Ryan Farrington <
> > > rfarrington@remitdata.com>
> > > wrote:
> > >
> > > > The slow transfer is related to the storage we are trying to migrate
> > off
> > > > of.  We are capable of getting about 350mbps off the disks but when
> we
> > > are
> > > > moving volumes that are greater than about 500GB we end up racing the
> > > clock
> > > > and hoping that the migration finishes before the job times out.   It
> > > would
> > > > be awesome to be able to manage that timeout and I know there are a
> ton
> > > of
> > > > settings I just don't know about and am hoping someone might be able
> to
> > > > point me in the right direction.
> > > >
> > > >
> > > > ________________________________________
> > > > From: Rafael Weingärtner [rafaelweingartner@gmail.com]
> > > > Sent: Monday, October 12, 2015 6:40 PM
> > > > To: users@cloudstack.apache.org
> > > > Subject: [Questionable]  Re: Timeout with live migration
> > > >
> > > > I would first check your NICs' speed and load, the amount of RAM
> > > allocated
> > > > for the migrating VM and than check the hypervisor log files.
> > > >
> > > > On Mon, Oct 12, 2015 at 8:19 PM, Jan-Arve Nygård <
> > > > jan.arve.nygard@gmail.com>
> > > > wrote:
> > > >
> > > > > What version are you running? Check if the copy.volume.wait setting
> > is
> > > > set
> > > > > to 7200 and increase it. If not you could also check
> > > > > job.cancel.threshold.minutes and job.expire.minutes.
> > > > >
> > > > > -Jan-Arve
> > > > >
> > > > > 2015-10-13 0:46 GMT+02:00 Ryan Farrington <
> rfarrington@remitdata.com
> > >:
> > > > >
> > > > > > We are experiencing a failure in cloudstack waiting for an async
> > job
> > > > > > performing a live migration of a volume to finish. I've copied
> the
> > > > > relevant
> > > > > > log entries below.We acknowledge that the migration will take
a
> few
> > > > hours
> > > > > > based on the volume of the data and we are looking for a way
to
> > > > increase
> > > > > > the timeout of 7200 seconds into something we know we can work
> > with.
> > > > > >
> > > > > >
> > > > > > 2015-10-12 00:19:36,043 DEBUG [o.a.c.s.RemoteHostEndPoint]
> > > > > > (Job-Executor-62:ctx-802065a9 ctx-bb27a168) Failed to send
> command,
> > > due
> > > > > to
> > > > > > Agent:27, com.cloud.exception.OperationTimedoutException:
> Commands
> > > > > > 835325398 to Host 27 timed out after 7200
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Rafael Weingärtner
> > > >
> > >
> > >
> > >
> > > --
> > > Rafael Weingärtner
> > >
> >
> >
> >
> > --
> > Rafael Weingärtner
> >
>
>
>
> --
> Rafael Weingärtner
>



-- 
Rafael Weingärtner

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