[libvirt]issues with Migrating a domain‏

[libvirt]issues with Migrating a domain‏

[wei ma]

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Hi everyone.
i've been trying to migrate a domain from hostA to hostB.When i did it with
"xm" command,the domain could be migrated successfully,But everytime i did
it with
"virsh --live migrate <Domain> xen+ssh://root@Destination",
it failed and told me something like
"Error:Domain not found:xenUnifiedDomainLookupByName".
The same thing happened when i tried to do the same thing with libvirt API
like virDomainMigrate & virDomainMigrateToURI.
i am confused about this.
So can anybody can tell me why?Thanks a lot.
BTW ,my OS is CentOS 5.4 and my hypervisor is xen3.1.2 which is installed
with the OS.And the libvirt version is 0.7.7.
THANKS A LOT AGAIN.

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Re: [libvirt]issues with Migrating a domain???

[Pasi Kärkkäinen]

On Tue, Mar 23, 2010 at 02:31:41PM +0800, wei ma wrote:
>    Hi everyone.
>    i've been trying to migrate a domain from hostA to hostB.When i did it
>    with "xm" command,the domain could be migrated successfully,But everytime
>    i did it with
>    "virsh --live migrate <Domain> xen+ssh://root@Destination",
>    it failed and told me something like
>    "Error:Domain not found:xenUnifiedDomainLookupByName".

Did you try using an IP as the destination? 

>    The same thing happened when i tried to do the same thing with libvirt API
>    like virDomainMigrate & virDomainMigrateToURI.
>    i am confused about this.
>    So can anybody can tell me why?Thanks a lot.
>    BTW ,my OS is CentOS 5.4 and my hypervisor is xen3.1.2 which is installed
>    with the OS.And the libvirt version is 0.7.7.
>    THANKS A LOT AGAIN.

I think you should report this to redhat bugzilla, if using an IP doesn't fix it.

-- Pasi

Re: [libvirt]issues with Migrating a domain???

[wei ma]

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2010/3/23 Pasi Kärkkäinen <pasik@iki.fi>

> On Tue, Mar 23, 2010 at 02:31:41PM +0800, wei ma wrote:
> >    Hi everyone.
> >    i've been trying to migrate a domain from hostA to hostB.When i did it
> >    with "xm" command,the domain could be migrated successfully,But
> everytime
> >    i did it with
> >    "virsh --live migrate <Domain> xen+ssh://root@Destination",
> >    it failed and told me something like
> >    "Error:Domain not found:xenUnifiedDomainLookupByName".
>
> Did you try using an IP as the destination?
>
> >    The same thing happened when i tried to do the same thing with libvirt
> API
> >    like virDomainMigrate & virDomainMigrateToURI.
> >    i am confused about this.
> >    So can anybody can tell me why?Thanks a lot.
> >    BTW ,my OS is CentOS 5.4 and my hypervisor is xen3.1.2 which is
> installed
> >    with the OS.And the libvirt version is 0.7.7.
> >    THANKS A LOT AGAIN.
>
> I think you should report this to redhat bugzilla, if using an IP doesn't
> fix it.
>
> -- Pasi
> It doesn't work with only IP address.It seems that nobody met this issue
> before,so i guess maybe something is wrong with my configuretion.I've
> reported that to redhat,but no one answers.:(
>

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Re: [libvirt]issues with Migrating a domain???

[Pasi Kärkkäinen]

On Tue, Mar 23, 2010 at 04:21:32PM +0800, wei ma wrote:
>    2010/3/23 Pasi Kärkkäinen <[1]pasik@iki.fi>
> 
>      On Tue, Mar 23, 2010 at 02:31:41PM +0800, wei ma wrote:
>      >    Hi everyone.
>      >    i've been trying to migrate a domain from hostA to hostB.When i did
>      it
>      >    with "xm" command,the domain could be migrated successfully,But
>      everytime
>      >    i did it with
>      >    "virsh --live migrate <Domain> xen+ssh://root@Destination",
>      >    it failed and told me something like
>      >    "Error:Domain not found:xenUnifiedDomainLookupByName".
> 
>      Did you try using an IP as the destination?
> 
>      >    The same thing happened when i tried to do the same thing with
>      libvirt API
>      >    like virDomainMigrate & virDomainMigrateToURI.
>      >    i am confused about this.
>      >    So can anybody can tell me why?Thanks a lot.
>      >    BTW ,my OS is CentOS 5.4 and my hypervisor is xen3.1.2 which is
>      installed
>      >    with the OS.And the libvirt version is 0.7.7.
>      >    THANKS A LOT AGAIN.
> 
>      I think you should report this to redhat bugzilla, if using an IP
>      doesn't fix it.
>      -- Pasi
>      It doesn't work with only IP address.It seems that nobody met this issue
>      before,so i guess maybe something is wrong with my configuretion.I've
>      reported that to redhat,but no one answers.:(
> 

Did you check "xm log" from both dom0s? How about "xm dmesg"? Anything in them? 
Have you searched libvirt mailinglist archives? 

-- Pasi