mirror of
https://github.com/systemd/systemd.git
synced 2024-11-01 09:21:26 +03:00
217 lines
12 KiB
XML
217 lines
12 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
|
|
<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
|
|
<!--
|
|
This file is part of systemd.
|
|
|
|
Copyright 2012 Lennart Poettering
|
|
|
|
systemd is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
-->
|
|
|
|
<refentry id="systemd.kill">
|
|
<refentryinfo>
|
|
<title>systemd.kill</title>
|
|
<productname>systemd</productname>
|
|
|
|
<authorgroup>
|
|
<author>
|
|
<contrib>Developer</contrib>
|
|
<firstname>Lennart</firstname>
|
|
<surname>Poettering</surname>
|
|
<email>lennart@poettering.net</email>
|
|
</author>
|
|
</authorgroup>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>systemd.kill</refentrytitle>
|
|
<manvolnum>5</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>systemd.kill</refname>
|
|
<refpurpose>Process killing procedure
|
|
configuration</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<para><filename><replaceable>service</replaceable>.service</filename>,
|
|
<filename><replaceable>socket</replaceable>.socket</filename>,
|
|
<filename><replaceable>mount</replaceable>.mount</filename>,
|
|
<filename><replaceable>swap</replaceable>.swap</filename>,
|
|
<filename><replaceable>scope</replaceable>.scope</filename></para>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para>Unit configuration files for services, sockets,
|
|
mount points, swap devices and scopes share a subset
|
|
of configuration options which define the
|
|
killing procedure of processes belonging to the unit.</para>
|
|
|
|
<para>This man page lists the configuration options
|
|
shared by these five unit types. See
|
|
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
|
for the common options shared by all unit
|
|
configuration files, and
|
|
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
|
and
|
|
<citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
|
for more information on the configuration file options
|
|
specific to each unit type.</para>
|
|
|
|
<para>The kill procedure
|
|
configuration options are configured in the [Service],
|
|
[Socket], [Mount] or [Swap] section, depending on the
|
|
unit type.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Options</title>
|
|
|
|
<variablelist class='unit-directives'>
|
|
|
|
<varlistentry>
|
|
<term><varname>KillMode=</varname></term>
|
|
<listitem><para>Specifies how
|
|
processes of this unit shall be
|
|
killed. One of
|
|
<option>control-group</option>,
|
|
<option>process</option>,
|
|
<option>mixed</option>,
|
|
<option>none</option>.</para>
|
|
|
|
<para>If set to
|
|
<option>control-group</option>, all
|
|
remaining processes in the control
|
|
group of this unit will be killed on
|
|
unit stop (for services: after the
|
|
stop command is executed, as
|
|
configured with
|
|
<varname>ExecStop=</varname>). If set
|
|
to <option>process</option>, only the
|
|
main process itself is killed. If set
|
|
to <option>mixed</option>, the
|
|
<constant>SIGTERM</constant> signal
|
|
(see below) is sent to the main
|
|
process while the subsequent
|
|
<constant>SIGKILL</constant> signal
|
|
(see below) is sent to all remaining
|
|
processes of the unit's control
|
|
group. If set to
|
|
<option>none</option>, no process is
|
|
killed. In this case, only the stop
|
|
command will be executed on unit stop,
|
|
but no process be killed
|
|
otherwise. Processes remaining alive
|
|
after stop are left in their control
|
|
group and the control group continues
|
|
to exist after stop unless it is
|
|
empty.</para>
|
|
|
|
<para>Processes will first be
|
|
terminated via
|
|
<constant>SIGTERM</constant> (unless
|
|
the signal to send is changed via
|
|
<varname>KillSignal=</varname>). Optionally,
|
|
this is immediately followed by a
|
|
<constant>SIGHUP</constant> (if
|
|
enabled with
|
|
<varname>SendSIGHUP=</varname>). If
|
|
then, after a delay (configured via the
|
|
<varname>TimeoutStopSec=</varname> option),
|
|
processes still remain, the
|
|
termination request is repeated with
|
|
the <constant>SIGKILL</constant>
|
|
signal (unless this is disabled via
|
|
the <varname>SendSIGKILL=</varname>
|
|
option). See
|
|
<citerefentry><refentrytitle>kill</refentrytitle><manvolnum>2</manvolnum></citerefentry>
|
|
for more
|
|
information.</para>
|
|
|
|
<para>Defaults to
|
|
<option>control-group</option>.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><varname>KillSignal=</varname></term>
|
|
<listitem><para>Specifies which signal
|
|
to use when killing a service. This
|
|
controls the signal that is sent as
|
|
first step of shutting down a unit
|
|
(see above), and is usually followed
|
|
by <constant>SIGKILL</constant> (see
|
|
above and below). For a list of valid
|
|
signals, see
|
|
<citerefentry><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>. Defaults
|
|
to <constant>SIGTERM</constant>.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><varname>SendSIGHUP=</varname></term>
|
|
<listitem><para>Specifies whether to
|
|
send <constant>SIGHUP</constant> to
|
|
remaining processes immediately after
|
|
sending the signal configured with
|
|
<varname>KillSignal=</varname>. This
|
|
is useful to indicate to shells and
|
|
shell-like programs that their
|
|
connection has been severed. Takes a
|
|
boolean value. Defaults to "no".
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><varname>SendSIGKILL=</varname></term>
|
|
<listitem><para>Specifies whether to
|
|
send <constant>SIGKILL</constant> to remaining processes
|
|
after a timeout, if the normal
|
|
shutdown procedure left processes of
|
|
the service around. Takes a boolean
|
|
value. Defaults to "yes".
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>kill</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|