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12b42c7667
This did not really work out as we had hoped. Trying to do this upstream introduced several problems that probably makes it better suited as a downstream patch after all. At any rate, it is not releaseable in the current state, so we at least need to revert this before the release. * by adjusting the path to binaries, but not do the same thing to the search path we end up with inconsistent man-pages. Adjusting the search path too would be quite messy, and it is not at all obvious that this is worth the effort, but at any rate it would have to be done before we could ship this. * this means that distributed man-pages does not make sense as they depend on config options, and for better or worse we are still distributing man pages, so that is something that definitely needs sorting out before we could ship with this patch. * we have long held that split-usr is only minimally supported in order to boot, and something we hope will eventually go away. So before we start adding even more magic/effort in order to make this work nicely, we should probably question if it makes sense at all.
190 lines
8.4 KiB
XML
190 lines
8.4 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd.kill">
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<refentryinfo>
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<title>systemd.kill</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd.kill</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd.kill</refname>
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<refpurpose>Process killing procedure
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configuration</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename><replaceable>service</replaceable>.service</filename>,
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<filename><replaceable>socket</replaceable>.socket</filename>,
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<filename><replaceable>mount</replaceable>.mount</filename>,
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<filename><replaceable>swap</replaceable>.swap</filename>,
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<filename><replaceable>scope</replaceable>.scope</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>Unit configuration files for services, sockets, mount
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points, swap devices and scopes share a subset of configuration
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options which define the killing procedure of processes belonging
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to the unit.</para>
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<para>This man page lists the configuration options shared by
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these five unit types. See
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<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for the common options shared by all unit configuration files, and
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<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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and
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<citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for more information on the configuration file options specific to
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each unit type.</para>
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<para>The kill procedure configuration options are configured in
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the [Service], [Socket], [Mount] or [Swap] section, depending on
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the unit type.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<variablelist class='unit-directives'>
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<varlistentry>
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<term><varname>KillMode=</varname></term>
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<listitem><para>Specifies how processes of this unit shall be
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killed. One of
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<option>control-group</option>,
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<option>process</option>,
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<option>mixed</option>,
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<option>none</option>.</para>
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<para>If set to <option>control-group</option>, all remaining
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processes in the control group of this unit will be killed on
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unit stop (for services: after the stop command is executed,
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as configured with <varname>ExecStop=</varname>). If set to
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<option>process</option>, only the main process itself is
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killed. If set to <option>mixed</option>, the
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<constant>SIGTERM</constant> signal (see below) is sent to the
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main process while the subsequent <constant>SIGKILL</constant>
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signal (see below) is sent to all remaining processes of the
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unit's control group. If set to <option>none</option>, no
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process is killed. In this case, only the stop command will be
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executed on unit stop, but no process be killed otherwise.
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Processes remaining alive after stop are left in their control
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group and the control group continues to exist after stop
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unless it is empty.</para>
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<para>Processes will first be terminated via
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<constant>SIGTERM</constant> (unless the signal to send is
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changed via <varname>KillSignal=</varname>). Optionally, this
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is immediately followed by a <constant>SIGHUP</constant> (if
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enabled with <varname>SendSIGHUP=</varname>). If then, after a
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delay (configured via the <varname>TimeoutStopSec=</varname>
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option), processes still remain, the termination request is
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repeated with the <constant>SIGKILL</constant> signal (unless
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this is disabled via the <varname>SendSIGKILL=</varname>
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option). See
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<citerefentry><refentrytitle>kill</refentrytitle><manvolnum>2</manvolnum></citerefentry>
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for more information.</para>
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<para>Defaults to
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<option>control-group</option>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>KillSignal=</varname></term>
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<listitem><para>Specifies which signal to use when killing a
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service. This controls the signal that is sent as first step
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of shutting down a unit (see above), and is usually followed
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by <constant>SIGKILL</constant> (see above and below). For a
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list of valid signals, see
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<citerefentry project='man-pages'><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
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Defaults to <constant>SIGTERM</constant>. </para>
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<para>Note that right after sending the signal specified in
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this setting systemd will always send
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<constant>SIGCONT</constant>, to ensure that even suspended
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tasks can be terminated cleanly.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>SendSIGHUP=</varname></term>
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<listitem><para>Specifies whether to send
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<constant>SIGHUP</constant> to remaining processes immediately
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after sending the signal configured with
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<varname>KillSignal=</varname>. This is useful to indicate to
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shells and shell-like programs that their connection has been
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severed. Takes a boolean value. Defaults to "no".
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>SendSIGKILL=</varname></term>
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<listitem><para>Specifies whether to send
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<constant>SIGKILL</constant> to remaining processes after a
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timeout, if the normal shutdown procedure left processes of
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the service around. Takes a boolean value. Defaults to "yes".
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</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>kill</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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