virtlogd (8) - Linux Manuals
virtlogd: libvirt log management daemon
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 virtual 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 console 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 maintaining all current logs and clients. This allows for live upgrades of the virtlogd service.FILES
When run as root.
- /etc/virtlogd.conf
- The default configuration file used by virtlogd, unless overridden on the command line using the -f|--config option.
- /var/run/libvirt/virtlogd-sock
- The sockets libvirtd will use.
- /var/run/virtlogd.pid
- The PID file to use, unless overridden by the -p|--pid-file option.
When run as non-root.
- $XDG_CONFIG_HOME/virtlogd.conf
- The default configuration file used by libvirtd, unless overridden on the command line using the -f|--config option.
- $XDG_RUNTIME_DIR/libvirt/virtlogd-sock
- The socket libvirtd will use.
- $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, libvirtd will use $HOME/.config
- If $XDG_RUNTIME_DIR is not set in your environment, libvirtd will use $HOME/.cache
EXAMPLES
To retrieve the version of virtlogd:
# virtlogd --version virtlogd (libvirt) 1.1.1 #
To start virtlogd, instructing it to daemonize and create a PID file:
# virtlogd -d # ls -la /var/run/virtlogd.pid -rw-r--r-- 1 root root 6 Jul 9 02:40 /var/run/virtlogd.pid #
BUGS
Please report all bugs you discover. This should be done via either:- a) the mailing list
- <http://libvirt.org/contact.html>
- or,
- b) the bug tracker
- <http://libvirt.org/bugs.html>
- Alternatively, you may report bugs to your software distributor / vendor.