VIRTLOGD - Online Linux Manual PageSection : 8
Updated :
Source :
Note : Virtualization Support
NAMEvirtlogd − libvirt log management daemon
SYNOPSISvirtlogd [OPTION]...
DESCRIPTIONThe 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.
SIGNALSOn 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/libvirt/virtlogd.conf The default configuration file used by virtlogd, unless overridden on the command line using the −f | −−config option. • /run/libvirt/virtlogd−sock The sockets virtlogd will use. • /run/virtlogd.pid The PID file to use, unless overridden by the −p | −−pid−file option.
When run as non−root • $XDG_CONFIG_HOME/libvirt/virtlogd.conf The default configuration file used by virtlogd, unless overridden on the command line using the −f | −−config option. • $XDG_RUNTIME_DIR/libvirt/virtlogd−sock The socket virtlogd 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, virtlogd will use $HOME/.config If $XDG_RUNTIME_DIR is not set in your environment, virtlogd will use $HOME/.cache
EXAMPLESTo retrieve the version of virtlogd: # virtlogd −−version virtlogd (libvirt) 9.0.0 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
BUGSPlease 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 / vendor.
AUTHORSPlease refer to the AUTHORS file distributed with libvirt.
COPYRIGHTCopyright (C) 2006−2015 Red Hat, Inc., and the authors listed in the libvirt AUTHORS file.
LICENSEvirtlogd is distributed under the terms of the GNU LGPL v2.1+. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE
SEE ALSOlibvirtd(8), ­https://libvirt.org/ 0
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