On 10/24/2012 03:47 PM, Eric Blake wrote:
On 10/24/2012 03:01 PM, Cole Robinson wrote:
> This commit changes the behavior of LIBVIRT_DEBUG=1 libvirtd:
>
> $ git show 7022b09111d4322d21396a70d58320a9ad773962
> commit 7022b09111d4322d21396a70d58320a9ad773962
> Author: Daniel P. Berrange <berrange(a)redhat.com>
> Date: Thu Sep 27 13:13:09 2012 +0100
>
> Automatically enable systemd journal logging
>
> Probe to see if the systemd journal is accessible, and if
> so enable logging to the journal by default, rather than
> stderr (current default under systemd).
>
> Previously 'LIBVIRT_DEBUG=1 /usr/sbin/libvirtd' would show all debug
> output to stderr, now it send debug output to the journal.
>
> Only use the journal by default if running in daemon mode, or
> if stdin is _not_ a tty. This should make libvirtd launched from
> systemd use the journal, but preserve the old behavior in most
> situations.
Makes sense.
Thinking about it a bit more, should we be checking if stderr, rather
than stdin, is a ttty? That is, if you run 'libvirtd </dev/null' from a
terminal, don't you still want output to the stderr tty?
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library
http://libvirt.org