mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-11-03 20:01:16 +00:00
adfd1367f4
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Neal Gompa <ngompa13@gmail.com>
178 lines
3.8 KiB
ReStructuredText
178 lines
3.8 KiB
ReStructuredText
=========
|
|
virtlockd
|
|
=========
|
|
|
|
------------------------------
|
|
libvirt lock management daemon
|
|
------------------------------
|
|
|
|
:Manual section: 8
|
|
:Manual group: Virtualization Support
|
|
|
|
.. contents::
|
|
|
|
SYNOPSIS
|
|
========
|
|
|
|
``virtlockd`` [*OPTION*]...
|
|
|
|
|
|
DESCRIPTION
|
|
===========
|
|
|
|
The ``virtlockd`` program is a server side daemon component of the libvirt
|
|
virtualization management system that is used to manage locks held against
|
|
virtual machine resources, such as their disks.
|
|
|
|
This daemon is not used directly by libvirt client applications, rather it
|
|
is called on their behalf by ``libvirtd``. By maintaining the locks in a
|
|
standalone daemon, the main libvirtd daemon can be restarted without risk
|
|
of losing locks. The ``virtlockd`` daemon has the ability to re-exec()
|
|
itself upon receiving SIGUSR1, to allow live upgrades without downtime.
|
|
|
|
The ``virtlockd`` 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 client or lock.
|
|
|
|
``-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``, ``virtlockd`` will re-exec() its binary, while
|
|
maintaining all current locks and clients. This allows for live
|
|
upgrades of the ``virtlockd`` service.
|
|
|
|
|
|
FILES
|
|
=====
|
|
|
|
When run as *root*
|
|
------------------
|
|
|
|
* ``@SYSCONFDIR@/libvirt/virtlockd.conf``
|
|
|
|
The default configuration file used by ``virtlockd``, unless overridden on the
|
|
command line using the ``-f`` | ``--config`` option.
|
|
|
|
* ``@RUNSTATEDIR@/libvirt/virtlockd-sock``
|
|
|
|
The sockets ``virtlockd`` will use.
|
|
|
|
* ``@RUNSTATEDIR@/virtlockd.pid``
|
|
|
|
The PID file to use, unless overridden by the ``-p`` | ``--pid-file`` option.
|
|
|
|
|
|
When run as *non-root*
|
|
----------------------
|
|
|
|
* ``$XDG_CONFIG_HOME/libvirt/virtlockd.conf``
|
|
|
|
The default configuration file used by ``virtlockd``, unless overridden on the
|
|
command line using the ``-f`` | ``--config`` option.
|
|
|
|
* ``$XDG_RUNTIME_DIR/libvirt/virtlockd-sock``
|
|
|
|
The socket ``virtlockd`` will use.
|
|
|
|
* ``$XDG_RUNTIME_DIR/libvirt/virtlockd.pid``
|
|
|
|
The PID file to use, unless overridden by the ``-p`` | ``--pid-file`` option.
|
|
|
|
If ``$XDG_CONFIG_HOME`` is not set in your environment, ``virtlockd`` will use
|
|
``$HOME/.config``
|
|
|
|
If ``$XDG_RUNTIME_DIR`` is not set in your environment, ``virtlockd`` will use
|
|
``$HOME/.cache``
|
|
|
|
EXAMPLES
|
|
========
|
|
|
|
To retrieve the version of ``virtlockd``:
|
|
|
|
.. code-block::
|
|
|
|
# virtlockd --version
|
|
virtlockd (libvirt) 1.1.1
|
|
|
|
To start ``virtlockd``, instructing it to daemonize and create a PID file:
|
|
|
|
.. code-block::
|
|
|
|
# virtlockd -d
|
|
# ls -la @RUNSTATEDIR@/virtlockd.pid
|
|
-rw-r--r-- 1 root root 6 Jul 9 02:40 @RUNSTATEDIR@/virtlockd.pid
|
|
|
|
BUGS
|
|
====
|
|
|
|
Please report all bugs you discover. This should be done via either:
|
|
|
|
#. the mailing list
|
|
|
|
`https://libvirt.org/contact.html <https://libvirt.org/contact.html>`_
|
|
|
|
#. the bug tracker
|
|
|
|
`https://libvirt.org/bugs.html <https://libvirt.org/bugs.html>`_
|
|
|
|
Alternatively, you may report bugs to your software distributor / vendor.
|
|
|
|
|
|
AUTHORS
|
|
=======
|
|
|
|
Please refer to the AUTHORS file distributed with libvirt.
|
|
|
|
|
|
COPYRIGHT
|
|
=========
|
|
|
|
Copyright (C) 2006-2013 Red Hat, Inc., and the authors listed in the
|
|
libvirt AUTHORS file.
|
|
|
|
|
|
LICENSE
|
|
=======
|
|
|
|
``virtlockd`` 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 ALSO
|
|
========
|
|
|
|
libvirtd(8), `https://libvirt.org/ <https://libvirt.org/>`_
|