annotate xml/en/docs/ngx_core_module.xml @ 966:95c3c3bbf1ce

Text review.
author Egor Nikitin <yegor.nikitin@gmail.com>
date Wed, 14 Aug 2013 12:03:41 +0400
parents 6d9d4bb571a9
children 379cb572a7ec
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
1 <?xml version="1.0"?>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
2
580
be54c443235a Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents: 574
diff changeset
3 <!--
be54c443235a Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents: 574
diff changeset
4 Copyright (C) Igor Sysoev
be54c443235a Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents: 574
diff changeset
5 Copyright (C) Nginx, Inc.
be54c443235a Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents: 574
diff changeset
6 -->
be54c443235a Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents: 574
diff changeset
7
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
8 <!DOCTYPE module SYSTEM "../../../dtd/module.dtd">
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
9
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
10 <module name="Core functionality"
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
11 link="/en/docs/ngx_core_module.html"
589
764fbac1b8b4 Added document revision.
Ruslan Ermilov <ru@nginx.com>
parents: 580
diff changeset
12 lang="en"
953
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
13 rev="9">
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
14
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
15 <section id="example" name="Example Configuration">
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
16
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
17 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
18 <example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
19 user www www;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
20 worker_processes 2;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
21
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
22 error_log /var/log/nginx-error.log info;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
23
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
24 events {
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
25 use kqueue;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
26 worker_connections 2048;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
27 }
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
28
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
29 ...
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
30 </example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
31 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
32
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
33 </section>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
34
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
35
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
36 <section id="directives" name="Directives">
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
37
571
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
38 <directive name="accept_mutex">
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
39 <syntax><literal>on</literal> | <literal>off</literal></syntax>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
40 <default>on</default>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
41 <context>events</context>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
42
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
43 <para>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
44 If <literal>accept_mutex</literal> is enabled,
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
45 worker processes will accept new connections by turn.
571
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
46 Otherwise, all worker processes will be notified about new connections,
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
47 and if volume of new connections is low, some of the worker processes
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
48 may just waste system resources.
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
49 <note>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
50 The use of <link doc="events.xml" id="rtsig"/>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
51 connection processing method
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
52 requires <literal>accept_mutex</literal> to be enabled.
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
53 </note>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
54 </para>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
55
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
56 </directive>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
57
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
58
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
59 <directive name="accept_mutex_delay">
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
60 <syntax><value>time</value></syntax>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
61 <default>500ms</default>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
62 <context>events</context>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
63
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
64 <para>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
65 If <link id="accept_mutex"/> is enabled, specifies the maximum time
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
66 during which a worker process will try to restart accepting new
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
67 connections if another worker process is currently accepting
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
68 new connections.
571
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
69 </para>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
70
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
71 </directive>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
72
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
73
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
74 <directive name="daemon">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
75 <syntax><literal>on</literal> | <literal>off</literal></syntax>
102
c76a257f3fd4 The directive name is now automatically printed in <default> and <syntax>.
Ruslan Ermilov <ru@nginx.com>
parents: 98
diff changeset
76 <default>on</default>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
77 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
78
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
79 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
80 Determines whether nginx should become a daemon.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
81 Mainly used during development.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
82 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
83
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
84 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
85
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
86
516
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
87 <directive name="debug_connection">
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
88 <syntax>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
89 <value>address</value> |
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
90 <value>CIDR</value> |
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
91 <literal>unix:</literal></syntax>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
92 <default/>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
93 <context>events</context>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
94
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
95 <para>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
96 Enables debugging log for selected client connections.
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
97 Other connections will use logging level set by the
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
98 <link id="error_log"/> directive.
523
a8daad8e83bb Documented 1.2.1 changes.
Ruslan Ermilov <ru@nginx.com>
parents: 516
diff changeset
99 Debugged connections are specified by IPv4 or IPv6 (1.3.0, 1.2.1)
a8daad8e83bb Documented 1.2.1 changes.
Ruslan Ermilov <ru@nginx.com>
parents: 516
diff changeset
100 address or network.
614
0526cac4637e Removed intimate details of the "debug_connection" directive's
Ruslan Ermilov <ru@nginx.com>
parents: 610
diff changeset
101 A connection may also be specified using a hostname.
523
a8daad8e83bb Documented 1.2.1 changes.
Ruslan Ermilov <ru@nginx.com>
parents: 516
diff changeset
102 For connections using UNIX-domain sockets (1.3.0, 1.2.1),
a8daad8e83bb Documented 1.2.1 changes.
Ruslan Ermilov <ru@nginx.com>
parents: 516
diff changeset
103 debugging log is enabled by the “<literal>unix:</literal>” parameter.
516
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
104 <example>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
105 events {
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
106 debug_connection 127.0.0.1;
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
107 debug_connection localhost;
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
108 debug_connection 192.0.2.0/24;
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
109 debug_connection ::1;
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
110 debug_connection 2001:0db8::/32;
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
111 debug_connection unix:;
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
112 ...
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
113 }
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
114 </example>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
115 <note>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
116 For this directive to work, nginx needs to
913
9a65d437da42 Link to "A debugging log" from "debug_connection" and "error_log".
Ruslan Ermilov <ru@nginx.com>
parents: 804
diff changeset
117 be built with <literal>--with-debug</literal>,
9a65d437da42 Link to "A debugging log" from "debug_connection" and "error_log".
Ruslan Ermilov <ru@nginx.com>
parents: 804
diff changeset
118 see “<link doc="debugging_log.xml"/>”.
516
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
119 </note>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
120 </para>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
121
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
122 </directive>
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
123
8e1356bd281a Documented the "debug_connection" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 469
diff changeset
124
574
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
125 <directive name="debug_points">
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
126 <syntax><literal>abort</literal> | <literal>stop</literal></syntax>
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
127 <default/>
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
128 <context>main</context>
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
129
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
130 <para>
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
131 This directive is used for debugging.
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
132 </para>
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
133
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
134 <para>
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
135 When internal error is detected, e.g. the leak of sockets on
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
136 restart of working processes, enabling <literal>debug_points</literal>
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
137 leads to a core file creation (<literal>abort</literal>)
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
138 or to stopping of a process (<literal>stop</literal>) for further
574
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
139 analysis using a system debugger.
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
140 </para>
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
141
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
142 </directive>
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
143
5e9ff979eac8 Documented debug_points.
Ruslan Ermilov <ru@nginx.com>
parents: 571
diff changeset
144
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
145 <directive name="error_log">
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
146 <syntax>
953
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
147 <value>file</value> | <literal>stderr</literal> |
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
148 <literal>syslog:</literal><literal>server</literal>=<value>address</value>[,<value>parameter</value>=<value>value</value>]
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
149 [<literal>debug</literal> |
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
150 <literal>info</literal> |
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
151 <literal>notice</literal> |
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
152 <literal>warn</literal> |
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
153 <literal>error</literal> |
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
154 <literal>crit</literal> |
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
155 <literal>alert</literal> |
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
156 <literal>emerg</literal>]</syntax>
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
157 <default>logs/error.log error</default>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
158 <context>main</context>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
159 <context>http</context>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
160 <context>server</context>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
161 <context>location</context>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
162
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
163 <para>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
164 Configures logging.
935
3860b37d56c0 Documented support for multiple "error_log" directives.
Vladimir Homutov <vl@nginx.com>
parents: 913
diff changeset
165 Several logs can be specified on the same level (1.5.2).
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
166 </para>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
167
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
168 <para>
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
169 The first parameter defines a file that will store the log.
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
170 <!--
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
171 If filename is not absolute, it is prefixed with the prefix path.
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
172 -->
455
571b790ddf9e error_log: documented the special value "stderr" and default logging level.
Ruslan Ermilov <ru@nginx.com>
parents: 444
diff changeset
173 The special value <literal>stderr</literal> selects the standard error file.
953
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
174 Logging to syslog can be configured by specifying
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
175 the “<literal>syslog:</literal>” prefix.
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
176 </para>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
177
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
178 <para>
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
179 The second parameter determines the level of logging.
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
180 Log levels above are listed in the order of increasing severity.
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
181 Setting a certain log level will cause all messages of
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
182 the specified and more severe log levels to be logged.
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
183 For example, the default level <literal>error</literal> will
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
184 cause <literal>error</literal>, <literal>crit</literal>,
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
185 <literal>alert</literal>, and <literal>emerg</literal> messages
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
186 to be logged.
455
571b790ddf9e error_log: documented the special value "stderr" and default logging level.
Ruslan Ermilov <ru@nginx.com>
parents: 444
diff changeset
187 If this parameter is omitted then <literal>error</literal> is used.
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
188 <note>
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
189 For <literal>debug</literal> logging to work, nginx needs to
913
9a65d437da42 Link to "A debugging log" from "debug_connection" and "error_log".
Ruslan Ermilov <ru@nginx.com>
parents: 804
diff changeset
190 be built with <literal>--with-debug</literal>,
9a65d437da42 Link to "A debugging log" from "debug_connection" and "error_log".
Ruslan Ermilov <ru@nginx.com>
parents: 804
diff changeset
191 see “<link doc="debugging_log.xml"/>”.
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
192 </note>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
193 </para>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
194
953
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
195 <para>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
196 The following parameters configure logging to syslog:
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
197 <list type="tag">
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
198
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
199 <tag-name><literal>server=</literal><value>address</value></tag-name>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
200 <tag-desc>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
201 Defines an address of a syslog server.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
202 An address can be specified as a domain name or IP address,
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
203 and an optional port, or as a UNIX-domain socket path
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
204 specified after the “<literal>unix:</literal>” prefix.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
205 If port is not specified, the port 514 is used.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
206 If a domain name resolves to several IP addresses, the first resolved
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
207 address is used.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
208 </tag-desc>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
209
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
210 <tag-name><literal>facility=</literal><value>string</value></tag-name>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
211 <tag-desc>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
212 Sets facility of syslog messages, as defined in
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
213 <link url="http://tools.ietf.org/html/rfc3164#section-4.1.1">RFC 3164</link>.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
214 Facility can be one of “<literal>kern</literal>”, “<literal>user</literal>”,
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
215 “<literal>mail</literal>”, “<literal>daemon</literal>”,
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
216 “<literal>auth</literal>”, “<literal>intern</literal>”,
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
217 “<literal>lpr</literal>”, “<literal>news</literal>”, “<literal>uucp</literal>”,
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
218 “<literal>clock</literal>”, “<literal>authpriv</literal>”,
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
219 “<literal>ftp</literal>”, “<literal>ntp</literal>”, “<literal>audit</literal>”,
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
220 “<literal>alert</literal>”, “<literal>cron</literal>”,
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
221 “<literal>local0</literal>”..“<literal>local7</literal>”.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
222 Default is “<literal>local7</literal>”.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
223 </tag-desc>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
224
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
225 <tag-name><literal>tag=</literal><value>string</value></tag-name>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
226 <tag-desc>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
227 Sets tag of syslog messages.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
228 Default is “<literal>nginx</literal>”.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
229 </tag-desc>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
230
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
231 <!--
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
232 <tag-name><literal>bare=</literal><literal>on</literal> |
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
233 <literal>off</literal></tag-name>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
234 <tag-desc>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
235 If enabled, messages are sent without syslog headers.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
236 Default is <literal>off</literal>.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
237 </tag-desc>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
238 -->
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
239
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
240 </list>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
241 Example syslog configuration:
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
242 <example>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
243 error_log syslog:server=192.168.1.1 debug;
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
244 error_log syslog:server=unix:/var/log/nginx.sock;
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
245 error_log syslog:server=[2001:db8::1]:12345,facility=local7,tag=nginx error;
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
246 </example>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
247 </para>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
248
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
249 <para>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
250 <note>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
251 Logging to syslog is available as part of our <commercial_version/> only.
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
252 </note>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
253 </para>
aded7086e84f Commercial version documentation.
Ruslan Ermilov <ru@nginx.com>
parents: 935
diff changeset
254
158
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
255 </directive>
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
256
05e58829de2e Documented the "error_log" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
257
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
258 <directive name="env">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
259 <syntax><value>variable</value>[=<value>value</value>]</syntax>
102
c76a257f3fd4 The directive name is now automatically printed in <default> and <syntax>.
Ruslan Ermilov <ru@nginx.com>
parents: 98
diff changeset
260 <default>TZ</default>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
261 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
262
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
263 <para>
804
d22421dc5d00 Clarified the effects of the "env" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 764
diff changeset
264 By default, nginx removes all environment variables inherited
d22421dc5d00 Clarified the effects of the "env" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 764
diff changeset
265 from its parent process except the TZ variable.
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
266 This directive allows preserving some of the inherited variables,
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
267 changing their values, or creating new environment variables.
804
d22421dc5d00 Clarified the effects of the "env" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 764
diff changeset
268 These variables are then:
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
269 <list type="bullet">
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
270
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
271 <listitem>
804
d22421dc5d00 Clarified the effects of the "env" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 764
diff changeset
272 inherited during a <link doc="control.xml" id="upgrade">live upgrade</link>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
273 of an executable file;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
274 </listitem>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
275
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
276 <listitem>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
277 used by the
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
278 <link doc="http/ngx_http_perl_module.xml">ngx_http_perl_module</link> module;
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
279 </listitem>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
280
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
281 <listitem>
804
d22421dc5d00 Clarified the effects of the "env" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 764
diff changeset
282 used by worker processes.
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
283 One should bear in mind that controlling system libraries in this way
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
284 is not always possible as it is common for libraries to check
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
285 variables only during initialization, well before they can be set
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
286 using this directive.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
287 An exception from this is an above mentioned
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
288 <link doc="control.xml" id="upgrade">live upgrade</link>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
289 of an executable file.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
290 </listitem>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
291
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
292 </list>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
293 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
294
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
295 <para>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
296 The TZ variable is always inherited and available to the
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
297 <link doc="http/ngx_http_perl_module.xml">ngx_http_perl_module</link>
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
298 module, unless it is configured explicitly.
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
299 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
300
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
301 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
302 Usage example:
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
303 <example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
304 env MALLOC_OPTIONS;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
305 env PERL5LIB=/data/site/modules;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
306 env OPENSSL_ALLOW_PROXY_CERTS=1;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
307 </example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
308 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
309
444
43c84d19bf92 Added a note about the NGINX environment variable.
Ruslan Ermilov <ru@nginx.com>
parents: 289
diff changeset
310 <para>
43c84d19bf92 Added a note about the NGINX environment variable.
Ruslan Ermilov <ru@nginx.com>
parents: 289
diff changeset
311 <note>
43c84d19bf92 Added a note about the NGINX environment variable.
Ruslan Ermilov <ru@nginx.com>
parents: 289
diff changeset
312 The NGINX environment variable is used internally by nginx
43c84d19bf92 Added a note about the NGINX environment variable.
Ruslan Ermilov <ru@nginx.com>
parents: 289
diff changeset
313 and should not be set directly by the user.
43c84d19bf92 Added a note about the NGINX environment variable.
Ruslan Ermilov <ru@nginx.com>
parents: 289
diff changeset
314 </note>
43c84d19bf92 Added a note about the NGINX environment variable.
Ruslan Ermilov <ru@nginx.com>
parents: 289
diff changeset
315 </para>
43c84d19bf92 Added a note about the NGINX environment variable.
Ruslan Ermilov <ru@nginx.com>
parents: 289
diff changeset
316
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
317 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
318
249
0f43f2c32c0b Fixed some nits.
Ruslan Ermilov <ru@nginx.com>
parents: 226
diff changeset
319
556
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
320 <directive name="events">
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
321 <syntax block="yes"/>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
322 <default/>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
323 <context>main</context>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
324
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
325 <para>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
326 Provides the configuration file context in which the directives that
556
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
327 affect connection processing are specified.
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
328 </para>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
329
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
330 </directive>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
331
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
332
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
333 <directive name="include">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
334 <syntax><value>file</value> | <value>mask</value></syntax>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
335 <default/>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
336 <context/>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
337
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
338 <para>
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
339 Includes another <value>file</value>, or files matching the
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
340 specified <value>mask</value>, into configuration.
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
341 Included files should consist of
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
342 syntactically correct directives and blocks.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
343 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
344
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
345 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
346 Usage example:
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
347 <example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
348 include mime.types;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
349 include vhosts/*.conf;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
350 </example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
351 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
352
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
353 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
354
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
355
571
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
356 <directive name="lock_file">
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
357 <syntax><value>file</value></syntax>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
358 <default>logs/nginx.lock</default>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
359 <context>main</context>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
360
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
361 <para>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
362 nginx uses the locking mechanism to implement <link id="accept_mutex"/>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
363 and serialize access to shared memory.
571
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
364 On most systems the locks are implemented using atomic operations,
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
365 and this directive is ignored.
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
366 On other systems the “lock file” mechanism is used.
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
367 This directive specifies a prefix for the names of lock files.
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
368 </para>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
369
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
370 </directive>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
371
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
372
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
373 <directive name="master_process">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
374 <syntax><literal>on</literal> | <literal>off</literal></syntax>
102
c76a257f3fd4 The directive name is now automatically printed in <default> and <syntax>.
Ruslan Ermilov <ru@nginx.com>
parents: 98
diff changeset
375 <default>on</default>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
376 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
377
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
378 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
379 Determines whether worker processes are started.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
380 This directive is intended for nginx developers.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
381 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
382
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
383 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
384
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
385
571
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
386 <directive name="multi_accept">
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
387 <syntax><literal>on</literal> | <literal>off</literal></syntax>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
388 <default>off</default>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
389 <context>events</context>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
390
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
391 <para>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
392 If <literal>multi_accept</literal> is disabled, a worker process
571
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
393 will accept one new connection at a time.
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
394 Otherwise, a worker process
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
395 will accept all new connections at a time.
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
396 <note>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
397 The directive is ignored if <link doc="events.xml" id="kqueue"/>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
398 connection processing method is used, because it reports
571
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
399 the number of new connections waiting to be accepted.
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
400 </note>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
401 <note>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
402 The use of <link doc="events.xml" id="rtsig"/>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
403 connection processing method
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
404 automatically enables <literal>multi_accept</literal>.
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
405 </note>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
406 </para>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
407
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
408 </directive>
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
409
71d775bef043 Documented accept_mutex, accept_mutex_delay, multi_accept, and lock_file.
Ruslan Ermilov <ru@nginx.com>
parents: 556
diff changeset
410
289
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
411 <directive name="pcre_jit">
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
412 <syntax><literal>on</literal> | <literal>off</literal></syntax>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
413 <default>off</default>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
414 <context>main</context>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
415 <appeared-in>1.1.12</appeared-in>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
416
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
417 <para>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
418 Enables or disables the use of “just-in-time compilation” (PCRE JIT)
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
419 for the regular expressions known by the time of configuration parsing.
289
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
420 </para>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
421
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
422 <para>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
423 PCRE JIT can speed up processing of regular expressions significantly.
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
424 <note>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
425 The JIT is available in PCRE libraries starting from version 8.20
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
426 built with the <literal>--enable-jit</literal> configuration parameter.
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
427 When the PCRE library is built with nginx (<literal>--with-pcre=</literal>),
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
428 the JIT support is enabled via the
289
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
429 <literal>--with-pcre-jit</literal> configuration parameter.
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
430 </note>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
431 </para>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
432
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
433 </directive>
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
434
df261b1ce71f Documented the --with-pcre-jit configuration parameter
Ruslan Ermilov <ru@nginx.com>
parents: 271
diff changeset
435
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
436 <directive name="pid">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
437 <syntax><value>file</value></syntax>
102
c76a257f3fd4 The directive name is now automatically printed in <default> and <syntax>.
Ruslan Ermilov <ru@nginx.com>
parents: 98
diff changeset
438 <default>nginx.pid</default>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
439 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
440
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
441 <para>
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
442 Defines a <value>file</value> that will store the process ID of the main process.
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
443 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
444
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
445 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
446
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
447
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
448 <directive name="ssl_engine">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
449 <syntax><value>device</value></syntax>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
450 <default/>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
451 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
452
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
453 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
454 Defines the name of the hardware SSL accelerator.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
455 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
456
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
457 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
458
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
459
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
460 <directive name="timer_resolution">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
461 <syntax><value>interval</value></syntax>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
462 <default/>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
463 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
464
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
465 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
466 Reduces timer resolution in worker processes, thus reducing the
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
467 number of <c-func>gettimeofday</c-func> system calls made.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
468 By default, <c-func>gettimeofday</c-func> is called each time
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
469 a kernel event is received.
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
470 With reduced resolution, <c-func>gettimeofday</c-func> is only
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
471 called once per specified <value>interval</value>.
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
472 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
473
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
474 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
475 Example:
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
476 <example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
477 timer_resolution 100ms;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
478 </example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
479 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
480
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
481 <para>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
482 Internal implementation of the interval depends on the method used:
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
483 <list type="bullet">
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
484
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
485 <listitem>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
486 the <c-def>EVFILT_TIMER</c-def> filter if <literal>kqueue</literal> is used;
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
487 </listitem>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
488
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
489 <listitem>
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
490 <c-func>timer_create</c-func> if <literal>eventport</literal> is used;
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
491 </listitem>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
492
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
493 <listitem>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
494 <c-func>setitimer</c-func> otherwise.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
495 </listitem>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
496
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
497 </list>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
498 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
499
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
500 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
501
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
502
556
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
503 <directive name="use">
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
504 <syntax><value>method</value></syntax>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
505 <default/>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
506 <context>events</context>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
507
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
508 <para>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
509 Specifies the <link doc="events.xml">connection processing</link>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
510 <value>method</value> to use.
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
511 There is normally no need to specify it explicitly, because nginx will
556
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
512 by default use the most efficient method.
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
513 </para>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
514
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
515 </directive>
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
516
345012910707 Documented the "events" and "use" directives.
Ruslan Ermilov <ru@nginx.com>
parents: 554
diff changeset
517
82
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
518 <directive name="user">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
519 <syntax><value>user</value> [<value>group</value>]</syntax>
102
c76a257f3fd4 The directive name is now automatically printed in <default> and <syntax>.
Ruslan Ermilov <ru@nginx.com>
parents: 98
diff changeset
520 <default>nobody nobody</default>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
521 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
522
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
523 <para>
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
524 Defines <value>user</value> and <value>group</value>
82
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
525 credentials used by worker processes.
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
526 If <value>group</value> is omitted, a group whose name equals
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
527 that of <value>user</value> is used.
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
528 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
529
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
530 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
531
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
532
749
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
533 <directive name="worker_aio_requests">
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
534 <syntax><value>number</value></syntax>
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
535 <default>32</default>
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
536 <context>events</context>
750
6a1b1ba62cab Documented history of "worker_aio_requests" directive.
Vladimir Homutov <vl@nginx.com>
parents: 749
diff changeset
537 <appeared-in>1.1.4</appeared-in>
6a1b1ba62cab Documented history of "worker_aio_requests" directive.
Vladimir Homutov <vl@nginx.com>
parents: 749
diff changeset
538 <appeared-in>1.0.7</appeared-in>
749
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
539
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
540 <para>
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
541 When using <link doc="http/ngx_http_core_module.xml" id="aio"/>
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
542 with the <link doc="../docs/events.xml" id="epoll"/>
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
543 connection processing method, sets the maximum <value>number</value> of
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
544 outstanding asynchronous I/O operations
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
545 for a single worker process.
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
546 </para>
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
547
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
548 </directive>
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
549
2abb92a19101 Documented 'worker_aio_requests' directive.
Vladimir Homutov <vl@nginx.com>
parents: 742
diff changeset
550
545
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
551 <directive name="worker_connections">
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
552 <syntax><value>number</value></syntax>
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
553 <default>512</default>
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
554 <context>events</context>
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
555
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
556 <para>
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
557 Sets the maximum number of simultaneous connections that
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
558 can be opened by a worker process.
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
559 </para>
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
560
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
561 <para>
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
562 It should be kept in mind that this number includes all connections
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
563 (e.g. connections with proxied servers, among others),
545
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
564 not only connections with clients.
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
565 Another consideration is that the actual number of simultaneous
966
95c3c3bbf1ce Text review.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 957
diff changeset
566 connections cannot exceed the current limit on
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
567 the maximum number of open files, which can be changed by
545
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
568 <link id="worker_rlimit_nofile"/>.
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
569 </para>
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
570
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
571 </directive>
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
572
e97b46d1842d Documented the "worker_connections" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 523
diff changeset
573
469
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
574 <directive name="worker_cpu_affinity">
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
575 <syntax><value>cpumask</value> ...</syntax>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
576 <default/>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
577 <context>main</context>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
578
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
579 <para>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
580 Binds worker processes to the sets of CPUs.
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
581 Each CPU set is represented by a bitmask of allowed CPUs.
469
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
582 There should be a separate set defined for each of the worker processes.
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
583 By default, worker processes are not bound to any specific CPUs.
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
584 </para>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
585
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
586 <para>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
587 For example,
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
588 <example>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
589 worker_processes 4;
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
590 worker_cpu_affinity 0001 0010 0100 1000;
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
591 </example>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
592 binds each worker process to a separate CPU, while
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
593 <example>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
594 worker_processes 2;
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
595 worker_cpu_affinity 0101 1010;
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
596 </example>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
597 binds the first worker process to CPU0/CPU2,
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
598 and the second worker process to CPU1/CPU3.
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
599 The second example is suitable for hyper-threading.
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
600 </para>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
601
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
602 <para>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
603 <note>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
604 The directive is only available on FreeBSD and Linux.
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
605 </note>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
606 </para>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
607
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
608 </directive>
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
609
8275e169f77b Documented the "worker_cpu_affinity" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 455
diff changeset
610
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
611 <directive name="worker_priority">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
612 <syntax><value>number</value></syntax>
102
c76a257f3fd4 The directive name is now automatically printed in <default> and <syntax>.
Ruslan Ermilov <ru@nginx.com>
parents: 98
diff changeset
613 <default>0</default>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
614 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
615
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
616 <para>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
617 Defines the scheduling priority for worker processes like it is
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
618 done by the <command>nice</command> command: a negative
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
619 <value>number</value>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
620 means higher priority.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
621 Allowed range normally varies from -20 to 20.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
622 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
623
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
624 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
625 Example:
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
626 <example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
627 worker_priority -10;
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
628 </example>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
629 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
630
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
631 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
632
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
633
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
634 <directive name="worker_processes">
740
46d70031bea9 Documented the recently added "auto" parameter of the
Andrey Belov <defan@nginx.com>
parents: 659
diff changeset
635 <syntax><value>number</value> | <literal>auto</literal></syntax>
102
c76a257f3fd4 The directive name is now automatically printed in <default> and <syntax>.
Ruslan Ermilov <ru@nginx.com>
parents: 98
diff changeset
636 <default>1</default>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
637 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
638
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
639 <para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
640 Defines the number of worker processes.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
641 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
642
226
c4b33b07dcfe Added some basic hints on how to tune "worker_processes".
Ruslan Ermilov <ru@nginx.com>
parents: 158
diff changeset
643 <para>
c4b33b07dcfe Added some basic hints on how to tune "worker_processes".
Ruslan Ermilov <ru@nginx.com>
parents: 158
diff changeset
644 The optimal value depends on many factors including (but not
c4b33b07dcfe Added some basic hints on how to tune "worker_processes".
Ruslan Ermilov <ru@nginx.com>
parents: 158
diff changeset
645 limited to) the number of CPU cores, the number of hard disk
c4b33b07dcfe Added some basic hints on how to tune "worker_processes".
Ruslan Ermilov <ru@nginx.com>
parents: 158
diff changeset
646 drives that store data, and load pattern.
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
647 When one is in doubt, setting it to the number of available CPU cores
740
46d70031bea9 Documented the recently added "auto" parameter of the
Andrey Belov <defan@nginx.com>
parents: 659
diff changeset
648 would be a good start (the value “<literal>auto</literal>”
46d70031bea9 Documented the recently added "auto" parameter of the
Andrey Belov <defan@nginx.com>
parents: 659
diff changeset
649 will try to autodetect it).
742
3a2e35f4c279 Documented that "worker_processes auto" appeared in version 1.3.8.
Ruslan Ermilov <ru@nginx.com>
parents: 740
diff changeset
650 <note>
3a2e35f4c279 Documented that "worker_processes auto" appeared in version 1.3.8.
Ruslan Ermilov <ru@nginx.com>
parents: 740
diff changeset
651 The <literal>auto</literal> parameter is supported starting from
764
f8434fdd3cd9 The "auto" parameter of the ""worker_processes" directive
Ruslan Ermilov <ru@nginx.com>
parents: 750
diff changeset
652 versions 1.3.8 and 1.2.5.
742
3a2e35f4c279 Documented that "worker_processes auto" appeared in version 1.3.8.
Ruslan Ermilov <ru@nginx.com>
parents: 740
diff changeset
653 </note>
226
c4b33b07dcfe Added some basic hints on how to tune "worker_processes".
Ruslan Ermilov <ru@nginx.com>
parents: 158
diff changeset
654 </para>
c4b33b07dcfe Added some basic hints on how to tune "worker_processes".
Ruslan Ermilov <ru@nginx.com>
parents: 158
diff changeset
655
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
656 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
657
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
658
82
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
659 <directive name="worker_rlimit_core">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
660 <syntax><value>size</value></syntax>
82
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
661 <default/>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
662 <context>main</context>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
663
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
664 <para>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
665 Changes the limit on the largest size of a core file
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
666 (<c-def>RLIMIT_CORE</c-def>) for worker processes.
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
667 Used to increase the limit without restarting the main process.
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
668 </para>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
669
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
670 </directive>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
671
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
672
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
673 <directive name="worker_rlimit_nofile">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
674 <syntax><value>number</value></syntax>
82
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
675 <default/>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
676 <context>main</context>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
677
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
678 <para>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
679 Changes the limit on the maximum number of open files
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
680 (<c-def>RLIMIT_NOFILE</c-def>) for worker processes.
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
681 Used to increase the limit without restarting the main process.
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
682 </para>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
683
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
684 </directive>
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
685
89c31b453d40 Sorted directives alphabetically.
Ruslan Ermilov <ru@nginx.com>
parents: 63
diff changeset
686
554
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
687 <directive name="worker_rlimit_sigpending">
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
688 <syntax><value>number</value></syntax>
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
689 <default/>
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
690 <context>main</context>
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
691
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
692 <para>
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
693 On systems that support <link doc="events.xml" id="rtsig"/>
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
694 connection processing method,
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
695 changes the limit on the number of signals that may be queued
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
696 (<c-def>RLIMIT_SIGPENDING</c-def>) for worker processes.
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
697 Used to increase the limit without restarting the main process.
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
698 </para>
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
699
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
700 </directive>
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
701
ccb7451af1d8 Documented the "worker_rlimit_sigpending" directive.
Ruslan Ermilov <ru@nginx.com>
parents: 545
diff changeset
702
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
703 <directive name="working_directory">
271
4c6d2c614d2c Cleaned up XML tag mess:
Ruslan Ermilov <ru@nginx.com>
parents: 270
diff changeset
704 <syntax><value>directory</value></syntax>
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
705 <default/>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
706 <context>main</context>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
707
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
708 <para>
957
6d9d4bb571a9 Text review of the ngx_core_module.
Egor Nikitin <yegor.nikitin@gmail.com>
parents: 953
diff changeset
709 Defines the current working directory for a worker process.
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
710 It is primarily used when writing a core-file, in which case
262
676abe405aba Changed one instance of "working process" to "worker process".
Ruslan Ermilov <ru@nginx.com>
parents: 249
diff changeset
711 a worker process should have write permission for the
63
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
712 specified directory.
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
713 </para>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
714
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
715 </directive>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
716
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
717 </section>
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
718
6108fd3217e7 Initial English translation of ngx_core_module.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
719 </module>