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Re: [Xen-users] Re:Migration and relocation parameters

To: Rami Rosen <rosenrami@xxxxxxxxx>
Subject: Re: [Xen-users] Re:Migration and relocation parameters
From: Ian Brown <ianbrn@xxxxxxxxx>
Date: Mon, 21 Nov 2005 09:56:19 +0200
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Thanks Rami, you were absolutely right !

I had in xend-config.sxp
#(xend-relocation-address '')
(xend-relocation-address localhost)

netstat -nl | grep 8002
tcp        0      0    *

and trying from a different machine:
xm migrate 1 MY_MACHINE_IP_ADDR
Error: can't connect: Connection refused

and also , from that other machine:
 telnet MY_MACHINE_IP_ADDR 8002
telnet: connect to address MY_MACHINE_IP_ADDR: Connection refused

So I changed xend-config.sxp thus:

(xend-relocation-address '')
#(xend-relocation-address localhost)

and then
netstat -nl |grep 8002
tcp        0      0      *             
and also
telnet MY_MACHINE_IP_ADDR 8002
was OK. (connection started)
and also migrating from a different machine worked!

Thanks again,

On 11/18/05, Rami Rosen <rosenrami@xxxxxxxxx> wrote:
> Hi,
>  Regarding Ian Brown question about Migration:
>  I have a version of Xen Unstable from yesterday and
>  migration both to local machine and to a Dom0 on
>  a different machine works.
>  You said the error you get is:
>  "Error: can't connect: Connection refused"
>  (which is "ECONNREFUSED" errno).
>  I assume with high level of certainty that this problem
>  can be traced to setupRelocation() method in
> tools/python/xen/xendf/relocate.py.
>  This is how this method starts:
>     try:
>          sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>          sock.connect((dst, port))
>      except socket.error, err:
>          raise XendError("can't connect: %s" % err[1])
>  The default relocation port is 8002. (look at /etc/xen/xend-config.sxp).
>  Make sure that you "xend-relocation-port 8002" is
>  uncommneted and you are litening on this port.
>  The "xend-address localhost" should be commeneted to enable
>  remote connections.
>  You can verify this by running that running this python snippest solely
>  (replacing the dst with the right IP), or simply "telnet dst port"
>  Regards,
>  Rami Rosen
> _______________________________________________
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> Xen-users@xxxxxxxxxxxxxxxxxxx
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