[libvirt] Information needed regarding libvirt error

[arun abhinay]

Hi Martin,

Sorry for spamming. Forgot to ask in my eralier mail.

>>There's also a patch
>>fixing cpu-stats command, check it that helps.

Is the below patch which you were refering to.
https://www.redhat.com/archives/libvir-list/2013-June/msg00214.html
If not  can you provide the link for the patch which you were referring to.

Thanks
Abhinay

On Tue, Aug 27, 2013 at 9:08 AM, arun abhinay <arun.abhinay at gmail.com>wrote:

> Hi Martin,
>
> Thanks for your reply. I have already posted this query to libvirt list.
> https://www.redhat.com/archives/libvirt-users/2013-August/msg00114.html
>
> >>Wanting to post the link here, I've found
> >>that even the machine name is the same, so it shouldn't be a problem for
> >>you to find it.
>
> Were you talking of the same link which is mentioned above.
>
> Since the change of converting it from error to warning was done by you, i
> have mailed a seperate query to you.  Yes we will make sure that such
> queries are addresed to libvirt user list from next time.
>
> >>This basically means that you have old qemu that doesn't support (I'm
> >>guesing the command now) "query-vcpus" QMP command.
>
> I have got below information from the file "qapi-schema.json" in qemu code.
> ##
> # @query-cpus:
> #
> # Returns a list of information about each virtual CPU.
> #
> # Returns: a list of @CpuInfo for each virtual CPU
> #
> # Since: 0.14.0
> ##
> { 'command': 'query-cpus', 'returns': ['CpuInfo'] }
> ##
>
> We were ealier using libvirt-1.0.2 and qemu-kvm-0.14.1-1, and the
> "cpu-stats" command was working fine. We are facing this issue after
> upgrading the libvirt version to 1.0.6.  But anyways it can be a problem
> with old qemu version. We are trying to compile the new libvirt 1.0.6 with
> qemu-1.6.0 but we are facing some  compiling issues because of
> depedencies between latest qemu code with glib.
>
> Please let us know your comments. Thanks in advance.
>
> BR
> Abhinay
>
>
>
> On Tue, Aug 27, 2013 at 8:06 AM, Martin Kletzander <mkletzan at redhat.com>wrote:
>
>> [cc'ing libvir-list]
>>
>> On 08/26/2013 05:59 PM, arun abhinay wrote:
>> > Hi,
>> >
>> > Can you please consider this is an gentle reminder for my below request.
>> >
>> > Thanks
>> > Abhinay
>> >
>> > On Fri, Aug 23, 2013 at 1:01 PM, arun abhinay <arun.abhinay at gmail.com
>> >wrote:
>> >
>> >> Hi Martin/Peter,
>> >>
>>
>> Hi,
>>
>> firstly, feel free to write to the list, not just particular people.
>> There are many more people on the list that may help you.  Not
>> mentioning that those people you write might not be available, don't
>> have time etc.
>>
>> There was a similar question to the one you've asked, you could have
>> checked that out before as well and reply on it.  There's also a patch
>> fixing cpu-stats command, check it that helps.
>>
>> >> In reference to
>> >> http://comments.gmane.org/gmane.comp.emulators.libvirt/62451
>> >>
>> >> We have created a VM on a qemu-kvm emulator using the domain.xml as
>> >> mentioned in attachment. The starting of the VM is sucessful but we are
>> >> facing issue while executing the command "cpu-stats <domain>".  While
>> >> analysis we found below below log in libvirtd.log
>> >>
>> >> 2013-08-22 12:45:44.326+0000: 17554: warning :
>> qemuSetupCgroupForVcpu:953
>> >> : Unable to get vcpus' pids
>> >>
>>
>> This basically means that you have old qemu that doesn't support (I'm
>> guesing the command now) "query-vcpus" QMP command.  The problem
>> probably lies somewhere else, even though my change might have caused
>> the other part to behave differently.
>>
>> >> The complete logs while starting VM and while executing the "cpu-stats"
>> >> command are attached with this mail for reference. Can you please
>> check and
>> >> provide us some inputs or pointers to get "cpu-stats" command working.
>> >>
>> >> I am new to using libvirt. Your inputs would be of great help to us.
>> >>
>> >> Libvrit and qemu-kvm verisons used are mentioned below
>> >> libvirt-1.0.6-1
>> >> qemu-kvm-0.14.1-1
>> >>
>> >> <<CLA_new-0.xml >> --> Domain.xml used to define VM
>> >> << libvirt_testing_starting_VG.log >>  --> Log while staring VM
>> >> <<libvirt_testing_cpu_stats.log >>  ---> Log while executing command
>> >> cpu_stats.
>> >>
>>
>> According to the logs, it looks like it's completely the same like a
>> question already asked...  Wanting to post the link here, I've found
>> that even the machine name is the same, so it shouldn't be a problem for
>> you to find it.
>>
>> I'm looking  at the issue now, so I'll see what I can do, but maybe in
>> the meantime sombody else will reply.
>>
>> Martin
>>
>
>
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