2011/6/15 G Naresh Kumar <naresh.gadepalli@gmail.com>:

Hi Maththias,

Thanks a lot for your response!.

Is there a specific version of libvirt from which xenserver support is added? I am getting the below error

"error: invalid argument in libvirt was built without the 'xenapi' driver"

The means that your libvirt version is new enough and contains the XenAPI driver but that it was disabled on configure time, probably because the build server didn't have libxenserver installed and libvirt's configure script automatically disabled the driver because of a missing dependency.

I have installed libvirt from citrix yum repo.

Then Citrix build libvirt without XenAPI support. As a long term solution you could report to whom ever is responsible for that repo and request to enabled XenAPI support in that libvirt package. As a short term solution you could build libvirt from source yourself and make sure to get the XenAPI driver enabled.

I am using Xenserver 5.5 with libvirt 0.8.2 and it does not seem to be working.

According to http://libvirt.org/hvsupport.html and the error message 0.8.2 is new enough. Matthias

Thanks,

Naresh

On Jun 15, 2011 7:03 PM, "Matthias Bolte" <matthias.bolte@googlemail.com> wrote:

...

2011/6/15 G Naresh Kumar <naresh.gadepalli@gmail.com>:

...

Hi, Is libvirt supported on Citrix Xenserver. I have been searching for the same with little/no luck. If supported, can you point to some links/documents which can help me try out the same. Thanks, Naresh

libvirt can use XenAPI via libxenserver [1]. That should allow you to use libvirt with a Citrix XenServer. You can use virsh like this assuming you have a libxenserver enabled libvirt:

virsh -c xenapi://my-xen-server

But it's true, there is no documentation about this on the libvirt website yet.

[1] http://community.citrix.com/display/xs/Download+SDKs

-- Matthias Bolte http://photron.blogspot.com

2011/7/14 G Naresh Kumar <naresh.gadepalli@gmail.com>:

Hi Maththias, Thanks for the help. I finally was able to compile/install libvirt on xenserver.

I tried compiling the libvirt 0.9.2 with xen api support. Was able to install it successfully. When I tried giving the virsh command, I got an ‘authentication failed’ error as shown below.

# virsh -c xenapi://<my local ip> Enter username for <mylocalip>: root

Here you entered root

Enter intel123's password for <my local ip>:

but here it asks for intel123's, that's unexpected. Did you edit this one before mailing it, or is there really this mismatch?

error: authentication failed: (null)

Outputting (null) here is actually a bug. The only way this can happen is when the login attempt fails but the XenServer doesn't provide an error message. Maybe have a look at the XenServer logs to see if it says something about a failed login attempt.

I also tried connecting to the local machine as below,

virsh -c "xenapi:///" error: authentication failed: Server name not in URI error: failed to connect to the hypervisor

The XenAPI driver expects a server name. xenapi:/// _could_ be treated as xenapi://localhost, but it's not implemented that way.

Also I am trying to install ruby-libvirt on xenserver, which looks like requires libvirt-devel package to be installed. How do I build it from the libvirt 0.9.2 source package.

Running 'make rpm' should build an libvirt-devel RPM package for you.

Thanks,

Naresh

On Wed, Jun 15, 2011 at 8:19 PM, Matthias Bolte <matthias.bolte@googlemail.com> wrote:

...

2011/6/15 G Naresh Kumar <naresh.gadepalli@gmail.com>:

...

Hi Maththias,

Thanks a lot for your response!.

Is there a specific version of libvirt from which xenserver support is added? I am getting the below error

"error: invalid argument in libvirt was built without the 'xenapi' driver"

The means that your libvirt version is new enough and contains the XenAPI driver but that it was disabled on configure time, probably because the build server didn't have libxenserver installed and libvirt's configure script automatically disabled the driver because of a missing dependency.

...

I have installed libvirt from citrix yum repo.

Then Citrix build libvirt without XenAPI support. As a long term solution you could report to whom ever is responsible for that repo and request to enabled XenAPI support in that libvirt package. As a short term solution you could build libvirt from source yourself and make sure to get the XenAPI driver enabled.

...

I am using Xenserver 5.5 with libvirt 0.8.2 and it does not seem to be working.

According to http://libvirt.org/hvsupport.html and the error message 0.8.2 is new enough.

Matthias

...

Thanks,

Naresh

On Jun 15, 2011 7:03 PM, "Matthias Bolte" <matthias.bolte@googlemail.com> wrote:

...

2011/6/15 G Naresh Kumar <naresh.gadepalli@gmail.com>:

...

Hi, Is libvirt supported on Citrix Xenserver. I have been searching for the same with little/no luck. If supported, can you point to some links/documents which can help me try out the same. Thanks, Naresh

libvirt can use XenAPI via libxenserver [1]. That should allow you to use libvirt with a Citrix XenServer. You can use virsh like this assuming you have a libxenserver enabled libvirt:

virsh -c xenapi://my-xen-server

But it's true, there is no documentation about this on the libvirt website yet.

[1] http://community.citrix.com/display/xs/Download+SDKs

-- Matthias Bolte http://photron.blogspot.com

-- I was an atheist till I realized I am GOD

-- Matthias Bolte http://photron.blogspot.com

2011/7/16 G Naresh Kumar <naresh.gadepalli@gmail.com>:

Hi Matthias,

Sorry for the confusion.It was an edited one & hence the typo. Below is the

actual output:

# virsh -c xenapi://<myip>

Enter username for <myip>: root

Enter root's password for <myip>:

error: authentication failed: (null)

I was not able to get anything in the Xen logs. Somehow figured out to print

the Xen error using the patch given at the link http://osdir.com/ml/libvir-

list/2011-06/msg00298.html. It prints "TRANSPORT_FAULT". Any pointers to this

error would be much appreciated. Iam also trying to debug this issue.

The mentioned patch is part of libvirt 0.9.3, but it has a problem. It altered the call to xenapiSessionErrorHandler in xenapiOpen in a way that breaks error reporting. libxenserver returns a list of strings that represents the complete error message. xenapiSessionErrorHandler with last parameter set to NULL, composes all parts of the error message into a single string. But the mentioned patch only takes the first part, in your case "TRANSPORT_FAULT". The second part of that error message is an numeric error code that might help to understand the problem. I just posed a patch to be applied on top of current git to fix this https://www.redhat.com/archives/libvir-list/2011-July/msg01496.html I attached a version of this patch that should apply to libvirt 0.9.3. I'd be glad if you could test it, as I don't have a XenAPI setup at hand. With that patch applied to libvirt 0.9.3 (or libvirt 0.9.2 + the patch you mentioned before) you should get 'TRANSPORT_FAULT : <error_code>' as error message and the number could help to figure out what the actual problem is.

As per your suggestion,

I had used make rpm. But it requires xen-devel pacakge, which I was

not able to get for Xen 3.4.2. Is there any way where I can use the source

package and build & install the library without using 'make rpm' ?

You can just do the normal ./configure, make and make install dance as libvirt is autotools based.

Thanks for all the help.

Regards

Naresh

On Thu, Jul 14, 2011 at 7:07 PM, Matthias Bolte <matthias.bolte@googlemail.com> wrote:

...

2011/7/14 G Naresh Kumar <naresh.gadepalli@gmail.com>:

...

Hi Maththias, Thanks for the help. I finally was able to compile/install libvirt on xenserver.

I tried compiling the libvirt 0.9.2 with xen api support. Was able to install it successfully. When I tried giving the virsh command, I got an ‘authentication failed’ error as shown below.

# virsh -c xenapi://<my local ip> Enter username for <mylocalip>: root

Here you entered root

...

Enter intel123's password for <my local ip>:

but here it asks for intel123's, that's unexpected. Did you edit this one before mailing it, or is there really this mismatch?

...

error: authentication failed: (null)

Outputting (null) here is actually a bug. The only way this can happen is when the login attempt fails but the XenServer doesn't provide an error message. Maybe have a look at the XenServer logs to see if it says something about a failed login attempt.

...

I also tried connecting to the local machine as below,

virsh -c "xenapi:///" error: authentication failed: Server name not in URI error: failed to connect to the hypervisor

The XenAPI driver expects a server name. xenapi:/// _could_ be treated as xenapi://localhost, but it's not implemented that way.

...

Also I am trying to install ruby-libvirt on xenserver, which looks like requires libvirt-devel package to be installed. How do I build it from the libvirt 0.9.2 source package.

Running 'make rpm' should build an libvirt-devel RPM package for you.

...

Thanks,

Naresh

On Wed, Jun 15, 2011 at 8:19 PM, Matthias Bolte <matthias.bolte@googlemail.com> wrote:

...

2011/6/15 G Naresh Kumar <naresh.gadepalli@gmail.com>:

...

Hi Maththias,

Thanks a lot for your response!.

Is there a specific version of libvirt from which xenserver support is added? I am getting the below error

"error: invalid argument in libvirt was built without the 'xenapi' driver"

The means that your libvirt version is new enough and contains the XenAPI driver but that it was disabled on configure time, probably because the build server didn't have libxenserver installed and libvirt's configure script automatically disabled the driver because of a missing dependency.

...

I have installed libvirt from citrix yum repo.

Then Citrix build libvirt without XenAPI support. As a long term solution you could report to whom ever is responsible for that repo and request to enabled XenAPI support in that libvirt package. As a short term solution you could build libvirt from source yourself and make sure to get the XenAPI driver enabled.

...

I am using Xenserver 5.5 with libvirt 0.8.2 and it does not seem to be working.

According to http://libvirt.org/hvsupport.html and the error message 0.8.2 is new enough.

Matthias

...

Thanks,

Naresh

On Jun 15, 2011 7:03 PM, "Matthias Bolte" <matthias.bolte@googlemail.com> wrote:

...

2011/6/15 G Naresh Kumar <naresh.gadepalli@gmail.com>: > Hi, > Is libvirt supported on Citrix Xenserver. I have been searching for > the > same > with little/no luck. > If supported, can you point to some links/documents which can help > me > try > out the same. > Thanks, > Naresh

libvirt can use XenAPI via libxenserver [1]. That should allow you to use libvirt with a Citrix XenServer. You can use virsh like this assuming you have a libxenserver enabled libvirt:

virsh -c xenapi://my-xen-server

But it's true, there is no documentation about this on the libvirt website yet.

[1] http://community.citrix.com/display/xs/Download+SDKs

-- Matthias Bolte http://photron.blogspot.com

-- I was an atheist till I realized I am GOD

-- Matthias Bolte http://photron.blogspot.com

-- I was an atheist till I realized I am GOD

-- Matthias Bolte http://photron.blogspot.com