[libvirt-users] Fwd: Problems connecting to the libvirtd server

Michal Privoznik mprivozn at redhat.com
Wed Oct 12 08:43:52 UTC 2016

On 12.10.2016 16:06, Stefano Ricci wrote:
>>> ---------- Forwarded message ----------
>>> From: Stefano Ricci <sfn.rcc at gmail.com>
>>> Date: 2016-10-11 12:35 GMT+02:00
>>> Subject: Re: [libvirt-users] Problems connecting to the libvirtd server
>>> To: Michal Privoznik <mprivozn at redhat.com>
>> [Please don't top post on technical lists]
> Sorry I was wrong
>>> There is not AppArmor and SElinux is disabled.
>>> The permits of the sock are as follows:
>>> libvirt-sock-admin 0700 (rwx) root: root
>>> libvirt-sock 0700 (rwx) root: root
>>> libvirt-sock-ro 0777 (rwxrwxrwx) root: root
>>> The libvirtd process runs with the root user.
>> Okay, the permissions look okay.
> Good
>>> Below you will find the link to the requested log:
>>> http://pastebin.com/0jtpWU0h (libvirt_client.log command LIBVIRT_DEBUG
>>> = 1 virsh -c qemu: /// system list --all)
>> And from the client logs it looks like client is trying to connect but
>> the daemon is not replying. So client just hangs waiting for server
>> reply. So I've looked into daemon logs and found this:
>> 2016-10-10 12:10:39.138+0000: 1383: error : virPidFileAcquirePath:422 :
>> Failed to acquire pid file '/var/lib/libvirt/qemu/capabilities.pidfile':
>> Risorsa temporaneamente non disponibile
>> (with my little Italian knowledge, this is Resource temporary unavailable)
>> This suggests that there might be a different libvirt daemon running.
>> Can you confirm that?
> If I do a ps I am one libvirtd daemon and one of qemu and
> /var/lib/libvirt/qemu/capabilities.pidfile file exists
> The file contains the correct PID of the process qemu.

Okay, so what's the status of the qemu process? Because what might be
happening here is that qemu driver is still starting up, so it is not
accepting connections just yet. And because qemu process it was talking
to (whilst fetching the caps) hung up, the driver basically failed to
start (and is still in startup phase).


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