Red Hat LINUX VIRTUAL SERVER 5.1 - ADMINISTRATION Guide d'installation télécharger pdf (Page 153)

# virsh uri

qemu:///system

This situation occurs when there are other hypervisors present, which libvirt may

speak to by default.

So lu t io n

After performing these tests, use the following command to view a list of guest virtual

machines:

# virsh list --all

B.16. Unable t o connect t o server at 'host :16509': Connect ion refused

... error: failed t o connect t o t he hypervisor

Symp t o m

While lib virt d should listen on TCP ports for connections, the connections fail:

# virsh -c qemu+tcp://host/system

error: unable to connect to server at 'host:16509': Connection

refused

error: failed to connect to the hypervisor

The lib virt daemon is not listening on TCP ports even after changing configuration in

/etc/l i bvi rt/l i bvi rtd . co nf:

# grep listen_ /etc/libvirt/libvirtd.conf

listen_tls = 1

listen_tcp = 1

listen_addr = "0.0.0.0"

However, the TCP ports for lib virt are still not open after changing configuration:

# netstat -lntp | grep libvirtd

In vest ig at io n

The lib virt daemon was started without the --l i sten option. Verify this by running this

command:

# ps aux | grep libvirtd

root 27314 0.0 0.0 1000920 18304 ? Sl Feb16 1:19

libvirtd --daemon

The output does not contain the --l i sten option.

So lu t io n

Start the daemon with the --l isten option.

Common libvirt errors and t roublesh oot ing

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Red Hat LINUX VIRTUAL SERVER 5.1 - ADMINISTRATION Guide d'installation Page 153