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Re: [libvirt] Looking for libvirt for RHEL 6.1 to provide Memory related metrics.



Including the libvirt-list group into the loop.

-----Original Message-----
From: Roy, Kallol 
Sent: Wednesday, June 06, 2012 11:37 PM
To: 'Eric Blake'
Subject: RE: [libvirt] Looking for libvirt for RHEL 6.1 to provide Memory related metrics.

Hello Eric,

It was indeed kind of you to revert back with the clarification. Thanks a ton.
Got couple of more queries which I am mentioning below:

Consider me as a new CU who would be using KVM on RHEL, what would be your suggestions (like which version of RHEL and libvirt) should I be installing/upgrading in order to get the metric/counters for resources like CPU, MEMORY, DISK and NIC (for guest and host). Given my production environment is on RHEL 6.1/5.7 Can you give an example of an environment (configuration) which would meet my requirement?

Next is do I get any information as which counters/metrics are being enabled with each of the new version of libvirt being released? The latest rpm I do see on the ftp://libvirt.org/libvirt/ is for Fedora.  How about the last one (.gz) Can it be installed on Linux?

libvirt-0.9.12-1.fc16.src.rpm	
libvirt-0.9.12-1.fc16.x86_64.rpm	
libvirt-0.9.12.tar.gz

Is a particular libvirt version tightly coupled to a RHEL version? Can I use "yum update" to upgrade my libvirt libraries to something latest? 
Currently my environment which RHEL 6.1 has the following libvrt libraries and I would like to upgrade to a higher version of libvirt. If you can let me know your expert opinion.

#rpm -qa | grep libvirt
libvirt-client-0.8.7-18.el6.x86_64
fence-virtd-libvirt-0.2.1-8.el6.x86_64
libvirt-cim-0.5.11-3.el6.x86_64
libvirt-qpid-0.2.22-6.el6.x86_64
libvirt-devel-0.8.7-18.el6.x86_64
libvirt-java-0.4.7-1.el6.noarch
libvirt-0.8.7-18.el6.x86_64
libvirt-java-devel-0.4.7-1.el6.noarch
libvirt-python-0.8.7-18.el6.x86_64

#virsh --version
0.8.7

#libvirtd --version
libvirtd (libvirt) 0.8.7

Regards,
Kallol Roy

-----Original Message-----
From: Eric Blake [mailto:eblake redhat com]
Sent: Wednesday, June 06, 2012 5:51 PM
To: Roy, Kallol
Cc: libvir-list redhat com
Subject: Re: [libvirt] Looking for libvirt for RHEL 6.1 to provide Memory related metrics.

On 06/06/2012 03:15 AM, Roy, Kallol wrote:
> Hello All,
> 
> Can some one let me know if we have the latest libvirt version for RHEL 6.1 which would provided me Memory related counters/metrics. The latest libvirt which I found was on Fedora.
> Any pointer or expected dates of libvirt release on RHEL would be highly appreciated.

If you have specific questions about libvirt on RHEL, you may be better off opening a support ticket with Red Hat.  Since each release of RHEL picks a given libvirt version, and then only backports patches that don't bump ABI compatibility into that version, you will have to work it out with Red Hat whether you can get your desired feature backported to RHEL 6.1, or whether you should instead upgrade to newer RHEL.
Otherwise, you can just rebuild any version of libvirt that you desire to run on RHEL 6.1, although by doing so, you no longer get Red Hat support on your use of libvirt if your self-build has problems.

Meanwhile, RHEL 6.2 is available for the public, with a newer version of libvirt (v0.9.4 plus patches), and RHEL 6.3 beta has been announced
(v0.9.10 plus patches).  Future release dates and libvirt versions in those releases are anyone's guess.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org



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