Do I have to bugzilla for rpm requirements of virt-df?

[Gianluca Cecchi]

Running virt-df on a F11 x86_64 system with fedora-virt-preview enabled I
get this:

[root@virtfed ~]# virt-df prova2
Filesystem                           1K-blocks       Used  Available  Use%
open_guest: no libvirt support (install Sys::Virt, XML::XPath and
XML::XPath::XMLParser) at
/usr/lib64/perl5/vendor_perl/5.10.0/x86_64-linux-thread-multi/Sys/Guestfs/Lib.pm
line 148.

perl-Sys-Virt is already installed while I'm missing the perl-XML-XPath and
related dependencies...

After I do a
yum install perl-XML-XPath
that makes automatically:
Installing:
 perl-XML-XPath                        noarch
1.13-8.fc11                  fedora                  85 k
Installing for dependencies:
 perl-Compress-Raw-Zlib                x86_64
2.008-73.fc11                updates                 81 k
 perl-Compress-Zlib                    x86_64
2.008-73.fc11                updates                 37 k
 perl-HTML-Parser                      x86_64
3.60-1.fc11                  updates                121 k
 perl-HTML-Tagset                      noarch
3.20-2.fc11                  fedora                  17 k
 perl-IO-Compress-Base                 x86_64
2.008-73.fc11                updates                 62 k
 perl-IO-Compress-Zlib                 x86_64
2.008-73.fc11                updates                143 k
 perl-URI                              noarch
1.37-2.fc11                  fedora                 121 k
 perl-XML-Parser                       x86_64
2.36-4.fc11                  fedora                 298 k
 perl-libwww-perl                      noarch
5.825-2.fc11                 fedora                 397 k

I'm able to run virt-df (though a bit slow to output the results):

[root@virtfed ~]# virt-df prova2
Filesystem                           1K-blocks       Used  Available  Use%
prova2:/dev/sda1                        198337      21627     166470 16.1%
prova2:/dev/vg_prova2/lv_root          3918752    3162200     557488 85.8%

Question: so virt-df should have as dependency perl-XML-XPath, otherwise is
unusable, correct? Or could it stay without perl-XML-XPath connecting to VMs
in other ways?

As I'm on f11+fedora-virt-preview repo I donna if this is a non-problem and
instead it is ok on F12.
it seems that both virt-df and perl-XML-XPath rpms are form f11 repos so
probably I have to bugzilla for F11?

Gianluca

[Mark McLoughlin]

On Fri, 2009-09-18 at 10:50 +0200, Gianluca Cecchi wrote:
>  Running virt-df on a F11 x86_64 system with fedora-virt-preview
>  enabled I get this:
>  
>  [root@virtfed ~]# virt-df prova2
>  Filesystem                           1K-blocks       Used  Available
>  Use%
>  open_guest: no libvirt support (install Sys::Virt, XML::XPath and
>  XML::XPath::XMLParser)
>  at /usr/lib64/perl5/vendor_perl/5.10.0/x86_64-linux-thread-multi/Sys/Guestfs/Lib.pm
>   line 148. 
Sounds like this?

  https://bugzilla.redhat.com/523547

Thanks,
Mark.

[Gianluca Cecchi]

Sure!
I added a comment to it.
Gianluca

On Fri, Sep 18, 2009 at 2:02 PM, Mark McLoughlin <markmc(a)redhat.com&gt; wrote:

>  On Fri, 2009-09-18 at 10:50 +0200, Gianluca Cecchi wrote:
>  > Running virt-df on a F11 x86_64 system with fedora-virt-preview
>  > enabled I get this:
>  >
>  > [root@virtfed ~]# virt-df prova2
>  > Filesystem                           1K-blocks       Used  Available
>  > Use%
>  > open_guest: no libvirt support (install Sys::Virt, XML::XPath and
>  > XML::XPath::XMLParser)
>  > at
>  /usr/lib64/perl5/vendor_perl/5.10.0/x86_64-linux-thread-multi/Sys/Guestfs/Lib.pm
>  >  line 148.
>
>  Sounds like this?
>
>   https://bugzilla.redhat.com/523547
>
>  Thanks,
>  Mark.
>
>

[Richard W.M. Jones]

On Fri, Sep 18, 2009 at 01:02:30PM +0100, Mark McLoughlin wrote:
>  On Fri, 2009-09-18 at 10:50 +0200, Gianluca Cecchi wrote:
>  > Running virt-df on a F11 x86_64 system with fedora-virt-preview
>  > enabled I get this:
>  > 
>  > [root@virtfed ~]# virt-df prova2
>  > Filesystem                           1K-blocks       Used  Available
>  > Use%
>  > open_guest: no libvirt support (install Sys::Virt, XML::XPath and
>  > XML::XPath::XMLParser)
>  > at /usr/lib64/perl5/vendor_perl/5.10.0/x86_64-linux-thread-multi/Sys/Guestfs/Lib.pm
>  >  line 148.
>  
>  Sounds like this?
>  
>    https://bugzilla.redhat.com/523547 
Just a note that this should be fixed now.  If you still get
dependency problems after installing 1.0.70-2, let me know.

Rich.

-- 
Richard Jones, Emerging Technologies, Red Hat  http://et.redhat.com/~rjones
Read my programming blog: http://rwmj.wordpress.com
Fedora now supports 75 OCaml packages (the OPEN alternative to F#)
http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora

[Richard W.M. Jones]

On Fri, Sep 18, 2009 at 10:50:56AM +0200, Gianluca Cecchi wrote:
>  I'm able to run virt-df (though a bit slow to output the
> results): 
You'll find that the new virt-df is slower than the old one.  See:

  http://libguestfs.org/FAQ.html#slow

I imagine that people won't want to run virt-df very often - for
monitoring disk usage it would seem sufficient to run it at most once
an hour, in which case the fact that it takes a few extra seconds to
start up doesn't seem to be a problem.

However, maybe I'm wrong.  It would be possible to have a "persistent"
version of virt-df, if there was really a use case for it.  Or you can
use guestfish remote support to get the raw figures more frequently /
without the start up overhead.

  http://libguestfs.org/guestfish.1.html#remote_control_guestfish_over_a_so...
  http://libguestfs.org/guestfish.1.html#statvfs

Rich.

-- 
Richard Jones, Emerging Technologies, Red Hat  http://et.redhat.com/~rjones
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine.  Supports Linux and Windows.
http://et.redhat.com/~rjones/virt-df/