[Xen-users] Re: [Xen-devel] Problem migrating domains

[Steven Hand <Steven.Hand@xxxxxxxxxxxx>]

> I'm having problems migrating domains with Xen3.0. I've used migration
> Xen2.0.7 with no problems and now that I've upgraded it to Xen3.0, I
> get this when I do a migration (not even a live migration !!!, it's a
> standard migration).
> 
> XenRunner:/var/cache/apt/archives# xm migrate 29 192.168.50.212
> Unexpected error: httplib.BadStatusLine
> 
> Please report to xen-devel@xxxxxxxxxxxxxxxxxxx
> Traceback (most recent call last):
>  File "/usr/sbin/xm", line 10, in ?
>    main.main(sys.argv)
>  File "/usr/lib/python/xen/xm/main.py", line 897, in main
>    rc = cmd(args)
>  File "<string>", line 1, in <lambda>
>  File "/usr/lib/python/xen/xm/main.py", line 533, in xm_subcommand
>    cmd.main([command] + args)
>  File "/usr/lib/python/xen/xm/migrate.py", line 63, in main
>    server.xend_domain_migrate(dom, dst, opts.vals.live, opts.vals.resource)
>  File "/usr/lib/python/xen/xend/XendClient.py", line 261, in
> xend_domain_migrate
>    {'op'         : 'migrate',
>  File "/usr/lib/python/xen/xend/XendClient.py", line 153, in xendPost
>    return self.client.xendPost(url, data)
>  File "/usr/lib/python/xen/xend/XendProtocol.py", line 101, in xendPost
>    return self.xendRequest(url, "POST", args)
>  File "/usr/lib/python/xen/xend/XendProtocol.py", line 172, in xendRequest
>    resp = conn.getresponse()
>  File "/usr/lib/python2.3/httplib.py", line 781, in getresponse
>    response.begin()
>  File "/usr/lib/python2.3/httplib.py", line 273, in begin
>    version, status, reason = self._read_status()
>  File "/usr/lib/python2.3/httplib.py", line 237, in _read_status
>    raise BadStatusLine(line)
> httplib.BadStatusLine
> 
 > 
> *******************************
> /var/log/xfrd.log(same in both machines):
> *******************************
> XENslave:/etc/apt# 4749 [INF] XFRD> Forked child pid=4751
> 4749 [INF] XFRD> Accepted connection from 192.168.50.195:4880 on 2
> 4797 [INF] XFRD> Xfr service for 192.168.50.195:4880
> [DEBUG] Conn_init> flags=1
> [DEBUG] Conn_init> write stream...
> [DEBUG] stream_init>mode=w flags=1 compress=0
> [DEBUG] stream_init> unbuffer...
> [DEBUG] stream_init< err=0
> [DEBUG] Conn_init> read stream...
> [DEBUG] stream_init>mode=r flags=1 compress=0
> [DEBUG] stream_init> unbuffer...
> [DEBUG] stream_init< err=0
> [DEBUG] Conn_sxpr>
> receive
> [DEBUG] Conn_sxpr< err=0
> 4797 [WRN] XFRD> sxpr_elementp test failed
> 4797 [ERR] XFRD> Hello failed: -22
> 4797 [INF] XFRD> Xfr service err=-22

Have you checked /etc/xen/xend-config.sxp on both machines? 
You need to enable relocation + authorize the hosts, e.g. 

(xend-relocation-server yes)
(xend-relocation-address '')
(xend-relocation-hosts-allow '')

[as far as I recall the default for the last of these is localhost 
which would mean that migration to localhost would work but nothing
else... have you tried migration to localhost?] 


You might also want to check your iptables config on each machine. 




cheers,

S.

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