libvirt users - Apr 2013 - virt-manager slow to connect, hangs on new host dialog

Hello,

I am using virt-manager 0.9.4 on a Debian unstable system (libvirt
0.9.12) to connect to a libvirtd via SSH running on a Debian testing
system (also version 0.9.12), and I have a problem using
virt-manager, which first takes ages to connect, then freezes.

The SSH connection is top-quality, the hosts are next to each other
and connected by Gigabit Ethernet. virsh connections work fine.

Unfortunately, when I run virt-manager and connect to the host, the
host's capabilities are fetched very quickly (according to
virt-manager's debug output), but it then takes 20?30 seconds until
the connection is established.

Logging libvirtd with log_level=2 produces nothing useful. Hence
I tried with log_level=1, which is mayhem. Attached is the log
output from the moment I told virt-manager to connect until shortly
after the connection has been established. Maybe someone can figure
out what's going on? I cannot?

The next problem is that when I then try to create a host, I am
shown the dialog and can enter one or two characters into the name
field, then the GUI completely freezes, and so does libvirtd on the
other system (ctrl-c does not work anymore).

I have also captured this part of the session in a second log file,
which provides no clues for me.

Does anyone else know what might be going on?

Thanks,

-- 
martin | http://madduck.net/ | http://two.sentenc.es/
 
"es ist immer etwas wahnsinn in der liebe.
 es ist aber auch immer etwas vernunft im wahnsinn."
                                                 - friedrich nietzsche
 
spamtraps: madduck.bogus at madduck.net
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Hi Martin.

Can you please share the string that you use to invoke virt-manager?

I use this one:

virt-manager -c qemu+ssh://user at kvm/system?netcat=netcatsocket

And in the KVM hypervisor server I edited /bin/netcatsocket with below
content:

#!/bin/bash
socat - unix-client:$2




2013/4/3 martin f krafft <madduck at madduck.net>
> Hello,
>
> I am using virt-manager 0.9.4 on a Debian unstable system (libvirt
> 0.9.12) to connect to a libvirtd via SSH running on a Debian testing
> system (also version 0.9.12), and I have a problem using
> virt-manager, which first takes ages to connect, then freezes.
>
> The SSH connection is top-quality, the hosts are next to each other
> and connected by Gigabit Ethernet. virsh connections work fine.
>
> Unfortunately, when I run virt-manager and connect to the host, the
> host's capabilities are fetched very quickly (according to
> virt-manager's debug output), but it then takes 20?30 seconds until
> the connection is established.
>
> Logging libvirtd with log_level=2 produces nothing useful. Hence
> I tried with log_level=1, which is mayhem. Attached is the log
> output from the moment I told virt-manager to connect until shortly
> after the connection has been established. Maybe someone can figure
> out what's going on? I cannot?
>
> The next problem is that when I then try to create a host, I am
> shown the dialog and can enter one or two characters into the name
> field, then the GUI completely freezes, and so does libvirtd on the
> other system (ctrl-c does not work anymore).
>
> I have also captured this part of the session in a second log file,
> which provides no clues for me.
>
> Does anyone else know what might be going on?
>
> Thanks,
>
> --
> martin | http://madduck.net/ | http://two.sentenc.es/
>
> "es ist immer etwas wahnsinn in der liebe.
>  es ist aber auch immer etwas vernunft im wahnsinn."
>                                                  - friedrich nietzsche
>
> spamtraps: madduck.bogus at madduck.net
>
> _______________________________________________
> libvirt-users mailing list
> libvirt-users at redhat.com
> https://www.redhat.com/mailman/listinfo/libvirt-users
>
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also sprach martin f krafft <madduck at madduck.net> [2013.04.03.1606
+0200]:
> Unfortunately, when I run virt-manager and connect to the host, the
> host's capabilities are fetched very quickly (according to
> virt-manager's debug output), but it then takes 20?30 seconds until
> the connection is established.
This isn't fixed, but?
> The next problem is that when I then try to create a host, I am
> shown the dialog and can enter one or two characters into the name
> field, then the GUI completely freezes, and so does libvirtd on the
> other system (ctrl-c does not work anymore).
This was apparently due to my definition of a default network
(172.27.0.0/24) on the "any physical interface" using NAT. Once
I removed this network, I could create test machines.

This may or may not be due to the fact that one of my interfaces
is slave to a bridge (eth0 slaves to the "wan" bridge). However, in
the interfaces dropdown of the network creation dialog, only eth0
shows up.

-- 
martin | http://madduck.net/ | http://two.sentenc.es/
 
a bachelor is a man who never made the same mistake once.
 
spamtraps: madduck.bogus at madduck.net
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