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Diffstat (limited to 'src/grp-system/systemd/systemd.kill.xml')
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diff --git a/src/grp-system/systemd/systemd.kill.xml b/src/grp-system/systemd/systemd.kill.xml new file mode 100644 index 0000000000..13b7ab14df --- /dev/null +++ b/src/grp-system/systemd/systemd.kill.xml @@ -0,0 +1,189 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!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 project='man-pages'><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>. + Defaults to <constant>SIGTERM</constant>. </para> + + <para>Note that, right after sending the signal specified in + this setting, systemd will always send + <constant>SIGCONT</constant>, to ensure that even suspended + tasks can be terminated cleanly.</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 project='man-pages'><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |