Re: [Xen-users] Domain sometimes does not migrate completely (an entry with the string "migrating-" remains on the source host)

[Igor Chubin <igor@xxxxxxx>]

On Mo, Mär 16, 2009 at 04:20:48 +0200, Igor Chubin wrote:
> 
> 
> Hello, all. 
> 
> I have a trouble with live migration of domains.
> 
> I have a Xen-DRBD cluster with DRBD-devices working over LVM
> volumes.
> 
> 
> There are strange situations sometimes.
> I start live migration of a domain.
> The domain moves from one host to the other
> ant continues working there, 
> but the line "migrating-" remains on the source host
> 
> For example:
> 
> migrating-dns                               13   128     2 ---s--      0.0
> 
> At the same time on the other host:
> 
> dns                                         13   128     2 -b----      0.5
> 
> And the domain continues working!
> 
> 
> 
> I must note that this happens not every migration, 
> but occasionally. In ~20% of cases.
> 
> The logs are ok. There are no strange entries at all.



Please, give any hint, how I could increase a debug level
to get some additional information, why the domain
does not migrate fully.

How can I get to know what is it waiting for?


-- 
Igor Chubin


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