VIRTLOGD(8) Virtualization Support VIRTLOGD(8)
NAME
virtlogd - libvirt log management daemon
SYNOPSIS
virtlogd [OPTION]...
DESCRIPTION
The virtlogd program is a server side daemon component of the libvirt
virtualization management system that is used to manage logs from vir-
tual machine consoles.
This daemon is not used directly by libvirt client applications, rather
it is called on their behalf by libvirtd. By maintaining the logs in a
standalone daemon, the main libvirtd daemon can be restarted without
risk of losing logs. The virtlogd daemon has the ability to re-exec()
itself upon receiving SIGUSR1, to allow live upgrades without downtime.
The virtlogd daemon listens for requests on a local Unix domain socket.
OPTIONS
-h, --help
Display command line help usage then exit.
-d, --daemon
Run as a daemon and write PID file.
-f, --config FILE
Use this configuration file, overriding the default value.
-t, --timeout SECONDS
Automatically shutdown after SECONDS have elapsed with no active con-
sole log.
-p, --pid-file FILE
Use this name for the PID file, overriding the default value.
-v, --verbose
Enable output of verbose messages.
-V, --version
Display version information then exit.
SIGNALS
On receipt of SIGUSR1, virtlogd will re-exec() its binary, while main-
taining all current logs and clients. This allows for live upgrades of
the virtlogd service.
FILES
When run as root
o /etc/libvirt/virtlogd.conf
The default configuration file used by virtlogd, unless overridden on
the command line using the -f | --config option.
o /run/libvirt/virtlogd-sock
The sockets virtlogd will use.
o /run/virtlogd.pid
The PID file to use, unless overridden by the -p | --pid-file option.
When run as non-root
o $XDG_CONFIG_HOME/libvirt/virtlogd.conf
The default configuration file used by virtlogd, unless overridden on
the command line using the -f | --config option.
o $XDG_RUNTIME_DIR/libvirt/virtlogd-sock
The socket virtlogd will use.
o $XDG_RUNTIME_DIR/libvirt/virtlogd.pid
The PID file to use, unless overridden by the -p | --pid-file option.
If $XDG_CONFIG_HOME is not set in your environment, virtlogd will use
$HOME/.config
If $XDG_RUNTIME_DIR is not set in your environment, virtlogd will use
$HOME/.cache
EXAMPLES
To retrieve the version of virtlogd:
# virtlogd --version
virtlogd (libvirt) 8.0.0
To start virtlogd, instructing it to daemonize and create a PID file:
# virtlogd -d
# ls -la /run/virtlogd.pid
-rw-r--r-- 1 root root 6 Jul 9 02:40 /run/virtlogd.pid
BUGS
Please report all bugs you discover. This should be done via either:
1. the mailing list
https://libvirt.org/contact.html
2. the bug tracker
https://libvirt.org/bugs.html
Alternatively, you may report bugs to your software distributor / ven-
dor.
AUTHORS
Please refer to the AUTHORS file distributed with libvirt.
COPYRIGHT
Copyright (C) 2006-2015 Red Hat, Inc., and the authors listed in the
libvirt AUTHORS file.
LICENSE
virtlogd is distributed under the terms of the GNU LGPL v2.1+. This is
free software; see the source for copying conditions. There is NO war-
ranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE
SEE ALSO
libvirtd(8), https://libvirt.org/
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