libvirt users - Apr 2010 - New VM Snapshot API Not working

All, 

Ok, I got it working.....

Problem was that I didnt include xen option for configure step.
But looks like Xen Hypervisor does not have support of Snapshot.  :(

I guess I have to fall back to save and restore method...

Sorry for the noise.



Thanks
Tej


________________________________________
From: Tej Parkash, ERS, HCLTech
Sent: Wednesday, April 21, 2010 2:31 PM
To: libvir-list at redhat.com
Subject: New VM Snapshot API Not working

All,

I have compiled new libvirt library 0.8.0. Compilation and installation went
really fine except "make check" which has show some test got failed. 
Here is what make check said.

Failed Test:

---------------snip-----------
PASS: statstest
TEST: qparamtest
      ................................         32  OK
PASS: qparamtest
TEST: capabilityschematest
      !!!!!!!!!!!!                             12  FAILED
FAIL: capabilityschematest
TEST: interfaceschematest
      !!!!!!!!!!!!!!!!!!                       18  FAILED
FAIL: interfaceschematest
TEST: networkschematest
      !!!!!!!!!!!                              11  FAILED
FAIL: networkschematest
TEST: storagepoolschematest
      !!!!!!!!!!!!!!!!!!!!                     20  FAILED
FAIL: storagepoolschematest
TEST: storagevolschematest
      !!!!!!!!!!!!                             12  FAILED
FAIL: storagevolschematest
TEST: domainschematest
      !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 40
      !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 80
      !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 120
      !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 160
      !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 200
      !!                                       202 FAILED
FAIL: domainschematest
TEST: nodedevschematest
      !!!!!!!!!!!!!!                           14  FAILED
FAIL: nodedevschematest
TEST: nwfilterschematest
      !!!!!!!!!!!!!!!!!!!!!!!!!!!              27  FAILED
FAIL: nwfilterschematest
TEST: test_conf.sh
      ..                                       2   OK
---------------- snip ---------------------------

===================9 of 40 tests failed
===================make[3]: *** [check-TESTS] Error 1
make[3]: Leaving directory `/tmp/libvirt-0.8.0/tests'
make[2]: *** [check-am] Error 2
make[2]: Leaving directory `/tmp/libvirt-0.8.0/tests'
make[1]: *** [check-recursive] Error 1
make[1]: Leaving directory `/tmp/libvirt-0.8.0/tests'
make: *** [check-recursive] Error 1
-------------------------------------------------------------------------

However installation went fine.

After I started create some snapshot, I am getting some remote error:

root at hcl:~# xm li
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0   622     2     r-----   1755.3
Test                                         3   256     1     -b----      4.4
root at hcl:~# virsh snapshot-create 3
error: unmarshalling remote_error

root at hcl:~# virsh snapshot-create 3 test.xml
error: unmarshalling remote_error

I have even written a C code with API's but same problem.

Here is livirt version n all
root at hcl:/tmp/libvirt-0.8.0# libvirtd --version
libvirtd (libvirt) 0.8.0
root at hcl:/tmp/libvirt-0.8.0# virsh -v
0.8.0
root at hcl:/tmp/libvirt-0.8.0#


Any Idea????????????????
Any suggestion???????/



Thanks
Tej

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On 04/21/2010 07:34 AM, Tej Parkash, ERS, HCLTech wrote:
> All, 
> 
> Ok, I got it working.....
> 
> Problem was that I didnt include xen option for configure step.
> But looks like Xen Hypervisor does not have support of Snapshot.  :(
> 
> I guess I have to fall back to save and restore method...
Ah, I see that you figured out the problem.  OK.  There is still a
bug in that you should not have seen the "remote marshalling" error;
we'll have to track that down.  And as you found out, we don't have
support for snapshots in the Xen hypervisor driver.  If Xen itself
supports snapshots (does it?), then patches to implement this are
welcome.

-- 
Chris Lalancette