mirror of
https://github.com/nginx/nginx.git
synced 2024-12-18 21:23:36 -06:00
294 lines
6.1 KiB
XML
294 lines
6.1 KiB
XML
<?xml version="1.0"?>
|
|
|
|
<!DOCTYPE module SYSTEM "../dtd/module.dtd">
|
|
|
|
<module name="Core Module" id="core_module">
|
|
|
|
<section name="Example Configuration" id="example">
|
|
|
|
<para>
|
|
<example>
|
|
user www www;
|
|
worker_processes 2;
|
|
|
|
error_log /var/log/nginx-error.log info;
|
|
|
|
events {
|
|
use kqueue;
|
|
worker_connections 2048;
|
|
}
|
|
|
|
...
|
|
</example>
|
|
</para>
|
|
|
|
</section>
|
|
|
|
|
|
<section name="Directives" id="directives">
|
|
|
|
<directive name="daemon">
|
|
<syntax>daemon <value>on</value> | <value>off</value></syntax>
|
|
<default>daemon on</default>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Determines whether nginx should become a daemon.
|
|
Mainly used during development.
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="env">
|
|
<syntax>env <argument>VAR</argument>[=<argument>VALUE</argument>]</syntax>
|
|
<default>env TZ</default>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Allows to limit a set of environment variables, change their values,
|
|
or create new environment variables, for the following cases:
|
|
<list type="bullet">
|
|
|
|
<listitem>
|
|
variable inheritance during a
|
|
<link doc="control.xml" id="upgrade">live upgrade</link>
|
|
of an executable file;
|
|
</listitem>
|
|
|
|
<listitem>
|
|
use of variables by the
|
|
<link doc="http/ngx_http_perl_module.xml">http_perl</link>
|
|
module;
|
|
</listitem>
|
|
|
|
<listitem>
|
|
use of variables by worker processes.
|
|
Please bear in mind that controlling system libraries in this way
|
|
is not always possible as it is not uncommon for libraries to check
|
|
variables only during initialization, well before they can be set
|
|
using this directive.
|
|
An exception from this is an above mentioned
|
|
<link doc="control.xml" id="upgrade">live upgrade</link>
|
|
of an executable file.
|
|
</listitem>
|
|
|
|
</list>
|
|
</para>
|
|
|
|
<para>
|
|
The TZ variable is always inherited and made available to the
|
|
<link doc="http/ngx_http_perl_module.xml">http_perl</link>
|
|
module, unless configured explicitly.
|
|
</para>
|
|
|
|
<para>
|
|
Usage example:
|
|
<example>
|
|
env MALLOC_OPTIONS;
|
|
env PERL5LIB=/data/site/modules;
|
|
env OPENSSL_ALLOW_PROXY_CERTS=1;
|
|
</example>
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
<directive name="include">
|
|
<syntax>include <argument>file</argument> | <argument>mask</argument></syntax>
|
|
<default/>
|
|
<context/>
|
|
|
|
<para>
|
|
Includes another <argument>file</argument>, or files matching the
|
|
specified <argument>mask</argument>, into configuration.
|
|
Included files should consist of
|
|
syntactically correct directives and blocks.
|
|
</para>
|
|
|
|
<para>
|
|
Usage example:
|
|
<example>
|
|
include mime.types;
|
|
include vhosts/*.conf;
|
|
</example>
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="master_process">
|
|
<syntax>master_process <value>on</value> | <value>off</value></syntax>
|
|
<default>master_process on</default>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Determines whether worker processes are started.
|
|
This directive is intended for nginx developers.
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="pid">
|
|
<syntax>pid <argument>file</argument></syntax>
|
|
<default>pid nginx.pid</default>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Defines a <argument>file</argument> which will store the process ID of the main process.
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="ssl_engine">
|
|
<syntax>ssl_engine <argument>device</argument></syntax>
|
|
<default/>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Defines the name of the hardware SSL accelerator.
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="user">
|
|
<syntax>user <argument>user</argument> [<argument>group</argument>]</syntax>
|
|
<default>user nobody nobody</default>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Defines <argument>user</argument> and <argument>group</argument>
|
|
credentials used by worker processes.
|
|
If <argument>group</argument> is omitted, a group whose name equals
|
|
that of <argument>user</argument> is used.
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="timer_resolution">
|
|
<syntax>timer_resolution <argument>interval</argument></syntax>
|
|
<default/>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Reduces timer resolution in worker processes, thus reducing the
|
|
number of <c-func>gettimeofday</c-func> system calls made.
|
|
By default, <c-func>gettimeofday</c-func> is called each time
|
|
on receiving a kernel event.
|
|
With reduced resolution, <c-func>gettimeofday</c-func> is only
|
|
called once per specified <argument>interval</argument>.
|
|
</para>
|
|
|
|
<para>
|
|
Example:
|
|
<example>
|
|
timer_resolution 100ms;
|
|
</example>
|
|
</para>
|
|
|
|
<para>
|
|
An internal implementation of interval depends on the method used:
|
|
<list type="bullet">
|
|
|
|
<listitem>
|
|
an <c-def>EVFILT_TIMER</c-def> filter if <value>kqueue</value> is used;
|
|
</listitem>
|
|
|
|
<listitem>
|
|
<c-func>timer_create</c-func> if <value>eventport</value> is used;
|
|
</listitem>
|
|
|
|
<listitem>
|
|
<c-func>setitimer</c-func> otherwise.
|
|
</listitem>
|
|
|
|
</list>
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="worker_rlimit_core">
|
|
<syntax>worker_rlimit_core <argument>size</argument></syntax>
|
|
<default/>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Changes the limit on the largest size of a core file
|
|
(<c-def>RLIMIT_CORE</c-def>) for worker processes.
|
|
Used to increase the limit without restarting the main process.
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="worker_rlimit_nofile">
|
|
<syntax>worker_rlimit_nofile <argument>number</argument></syntax>
|
|
<default/>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Changes the limit on the maximum number of open files
|
|
(<c-def>RLIMIT_NOFILE</c-def>) for worker processes.
|
|
Used to increase the limit without restarting the main process.
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="worker_priority">
|
|
<syntax>worker_priority <argument>number</argument></syntax>
|
|
<default>worker_priority 0</default>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Defines a scheduling priority for worker processes like is
|
|
done by the <command>nice</command>: a negative
|
|
<argument>number</argument>
|
|
means higher priority.
|
|
Allowed range normally varies from -20 to 20.
|
|
</para>
|
|
|
|
<para>
|
|
Example:
|
|
<example>
|
|
worker_priority -10;
|
|
</example>
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="worker_processes">
|
|
<syntax>worker_processes <argument>number</argument></syntax>
|
|
<default>worker_processes 1</default>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Defines the number of worker processes.
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
|
|
<directive name="working_directory">
|
|
<syntax>working_directory <argument>directory</argument></syntax>
|
|
<default/>
|
|
<context>main</context>
|
|
|
|
<para>
|
|
Defines a current working directory for a worker process.
|
|
It is primarily used when writing a core-file, in which case
|
|
a working process should have write permission for the
|
|
specified directory.
|
|
</para>
|
|
|
|
</directive>
|
|
|
|
</section>
|
|
|
|
</module>
|