Re: [Xen-devel] Live migration of DomU created by Xen-API.

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> Hi, cant signup to the list so please send all replys to me in person
> also please.

OK.

> When i create a DomU using the Xen-API everything works fine except for
> migrating the DomU from a machine to another.
> The hosts are 2 identical DL320s so they shouldnt be the problem. And if
> i create a domU using xm commands it all works fine too.
>
> This is the error i get. If anyone can give me a headsup please do.
>
> Errors:
>
>
> [2008-02-22 09:51:06 23838] DEBUG (XendCheckpoint:89) [xc_save]:
> /usr/lib/xen/bin/xc_save 27 47 0 0 5
> [2008-02-22 09:51:07 23838] INFO (XendCheckpoint:365) Saving memory
> pages: iter 1ÂÂ 0%ERROR Internal error: Error when writing to state file
> (5) (errno 104)

According to my system's errno.h, Errno 104 is ECONNRESET - connection reset 
by peer.  Is there anything interesting in the logs at the destination 
machine that might explain this?

Is there any network setup or any problems that might explain this?

Please could you answer Kurt's questions about your setup and also tell us how 
you installed your hypervisor (e.g. from source, from binary image, 
distribution packages) and where you got the packages from (what website, 
what distro, etc).

Cheers,
Mark

> [2008-02-22 09:51:07 23838] INFO (XendCheckpoint:365) Save exit rc=1
> [2008-02-22 09:51:07 23838] ERROR (XendCheckpoint:141) Save failed on
> domain test (47).
> Traceback (most recent call last):
> ÂFile "/usr/lib/python2.4/site-packages/xen/xend/XendCheckpoint.py",
> line 109, in save
> ÂÂÂforkHelper(cmd, fd, saveInputHandler, False)
> ÂFile "/usr/lib/python2.4/site-packages/xen/xend/XendCheckpoint.py",
> line 353, in forkHelper
> ÂÂÂraise XendError("%s failed" % string.join(cmd))
> XendError: /usr/lib/xen/bin/xc_save 27 47 0 0 5 failed
> [2008-02-22 09:51:07 23838] DEBUG (XendDomainInfo:1922)
> XendDomainInfo.resumeDomain(47)
> [2008-02-22 09:51:07 23838] DEBUG (XendDomainInfo:1952)
> XendDomainInfo.resumeDomain: completed
> [2008-02-22 09:51:07 23838] DEBUG (XendCheckpoint:144)
> XendCheckpoint.save: resumeDomain
> [2008-02-22 09:51:07 23838] ERROR (xmlrpclib2:166) Internal error
> handling VM.migrate
> Traceback (most recent call last):
> ÂFile "/usr/lib/python2.4/site-packages/xen/util/xmlrpclib2.py", line
> 131, in _marshaled_dispatch
> ÂÂÂresponse = self._dispatch(method, params)
> ÂFile "/usr/lib/python2.4/SimpleXMLRPCServer.py", line 406, in _dispatch
> ÂÂÂreturn func(*params)
> ÂFile "/usr/lib/python2.4/site-packages/xen/xend/XendAPI.py", line 221,
> in f
> ÂÂÂreturn func(self, *args, **kwargs)
> ÂFile "/usr/lib/python2.4/site-packages/xen/xend/XendAPI.py", line 256,
> in check_session
> ÂÂÂreturn func(self, session, *args, **kwargs)
> ÂFile "/usr/lib/python2.4/site-packages/xen/xend/XendAPI.py", line 312,
> in <lambda>
> ÂÂÂ'VM', func, *args, **kwargs)
> ÂFile "/usr/lib/python2.4/site-packages/xen/xend/XendAPI.py", line 268,
> in _check_ref
> ÂÂÂreturn func(api, session, ref, *args, **kwargs)
> ÂFile "/usr/lib/python2.4/site-packages/xen/xend/XendAPI.py", line 1766,
> in VM_migrate
> ÂÂÂbool(live), resource, port)
> ÂFile "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py", line
> 1299, in domain_migrate
> ÂÂÂXendCheckpoint.save(sock.fileno(), dominfo, True, live, dst)
> ÂFile "/usr/lib/python2.4/site-packages/xen/xend/XendCheckpoint.py",
> line 151, in save
> ÂÂÂraise exn
> XendError: /usr/lib/xen/bin/xc_save 27 47 0 0 5 failed
>
> //Emil Palm
> Cardium AB
>
>
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> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel



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Push Me Pull You - Distributed SCM tool (http://www.cl.cam.ac.uk/~maw48/pmpu/)

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