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[Xen-devel] Live Migration problems using xenapi with xm



I am seeing a problem when live migrating a guest under unstable when I have xm configured to XenAPI.

If my xm-config.xml file has the XenAPI stuff commented out - live migrate (xm migrate --live <domid> <dest IP>) seems to be working in my test environment.

However, if I enable it - I get failures when migrating the same guest (see dump from xend.log below.) They obviously go down quite different code paths in these two cases.

Being somewhat new to the xm, and xenapi control stacks - I was hoping someone might point me in the right direction to track down what might be happening here...

Any help is appreciated.

Ben

Xend log snippet:

2007-11-07 09:01:35 15422] DEBUG (XendCheckpoint:88) [xc_save]: /usr/lib64/xen/bin/xc_save 20 2 0 0 5 [2007-11-07 09:01:35 15422] INFO (XendCheckpoint:362) Saving memory pages: iter 1 0%ERROR Internal error: Error when writing to state file (5) (errno 104)
[2007-11-07 09:01:35 15422] INFO (XendCheckpoint:362) Save exit rc=1
[2007-11-07 09:01:36 15422] ERROR (XendCheckpoint:140) Save failed on domain VS022 (2).
Traceback (most recent call last):
File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 108, in save
  forkHelper(cmd, fd, saveInputHandler, False)
File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 350, in forkHelper
  raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib64/xen/bin/xc_save 20 2 0 0 5 failed
[2007-11-07 09:01:36 15422] DEBUG (XendDomainInfo:1856) XendDomainInfo.resumeDomain(2) [2007-11-07 09:01:36 15422] ERROR (xmlrpclib2:166) Internal error handling VM.migrate
Traceback (most recent call last):
File "/usr/lib64/python/xen/util/xmlrpclib2.py", line 131, in _marshaled_dispatch
  response = self._dispatch(method, params)
File "/usr/lib64/python2.4/SimpleXMLRPCServer.py", line 406, in _dispatch
  return func(*params)
File "/usr/lib64/python/xen/xend/XendAPI.py", line 221, in f
  return func(self, *args, **kwargs)
File "/usr/lib64/python/xen/xend/XendAPI.py", line 256, in check_session
  return func(self, session, *args, **kwargs)
File "/usr/lib64/python/xen/xend/XendAPI.py", line 312, in <lambda>
  'VM', func, *args, **kwargs)
File "/usr/lib64/python/xen/xend/XendAPI.py", line 268, in _check_ref
  return func(api, session, ref, *args, **kwargs)
File "/usr/lib64/python/xen/xend/XendAPI.py", line 1763, in VM_migrate
  bool(live), resource, port)
File "/usr/lib64/python/xen/xend/XendDomain.py", line 1282, in domain_migrate
  XendCheckpoint.save(sock.fileno(), dominfo, True, live, dst)
File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 142, in save
  dominfo.resumeDomain()
File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 1885, in resumeDomain
  if self.is_hvm():
File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 2139, in __getattr__
  raise AttributeError()
AttributeError



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