Mercurial > hg > nginx-site

annotate xml/ru/docs/http/ngx_http_limit_req_module.xml @ 243:b4afc16d1071

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added missing markup bits.
author Ruslan Ermilov <ru@nginx.com>
date Thu, 15 Dec 2011 13:26:56 +0000
parents bfe3eff81d04
children 945d7299c26c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
222
bfe3eff81d04 Removed redundant encoding specification.
Ruslan Ermilov <ru@nginx.com>
parents: 179
diff changeset
1 <?xml version="1.0"?>
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
2
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
3 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd">
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
4
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
5 <module name="Модуль ngx_http_limit_req_module"
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
6 link="/ru/docs/http/ngx_http_limit_req_module.html"
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
7 lang="ru">
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
8
110
40eec261c2a6 Added proper support for anonymous sections, notably for the summary.
Ruslan Ermilov <ru@nginx.com>
parents: 102
diff changeset
9 <section id="summary">
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
10
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
11 <para>
243
b4afc16d1071 Added missing markup bits.
Ruslan Ermilov <ru@nginx.com>
parents: 222
diff changeset
12 Модуль <code>ngx_http_limit_req_module</code> (0.7.21) позволяет
b4afc16d1071 Added missing markup bits.
Ruslan Ermilov <ru@nginx.com>
parents: 222
diff changeset
13 ограничить число запросов
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
14 по заданному ключу или, как частный случай, число запросов с одного IP-адреса.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
15 Ограничение делается с помощью метода “leaky bucket”.
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
16 </para>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
17
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
18 </section>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
19
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
20 <section name="Пример конфигурации" id="example">
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
21
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
22 <para>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
23 <example>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
24 http {
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
25 limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
26
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
27 ...
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
28
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
29 server {
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
30
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
31 ...
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
32
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
33 location /search/ {
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
34 limit_req zone=one burst=5;
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
35 }
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
36 </example>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
37 </para>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
38
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
39 </section>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
40
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
41
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
42 <section name="Директивы" id="directives">
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
43
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
44 <directive name="limit_req">
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
45 <syntax>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
46 <parameter>zone</parameter>=<argument>название</argument>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
47 [<parameter>burst</parameter>=<argument>число</argument>]
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
48 [<parameter>nodelay</parameter>]
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
49 </syntax>
99
1d315ef37215 The case <default/> is now language-agnostic.
Ruslan Ermilov <ru@nginx.com>
parents: 76
diff changeset
50 <default/>
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
51 <context>http</context>
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
52 <context>server</context>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
53 <context>location</context>
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
54
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
55 <para>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
56 Директива задаёт зону (zone) и максимально возможные всплески запросов (burst).
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
57 Если скорость запросов превышает описанную в зоне,
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
58 то их обработка задерживается так, чтобы запросы обрабатывались
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
59 с заданной скоростью.
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
60 Избыточные запросы задерживаются до тех пор, пока их число
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
61 не превысит заданное число всплесков.
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
62 В этом случае запрос завершается с ошибкой
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
63 <http-status code="503" text="Service Temporarily Unavailable"/>.
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
64 По умолчанию число всплесков равно нулю.
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
65 Например, директивы
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
66 <example>
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
67 limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
68
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
69 server {
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
70 location /search/ {
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
71 limit_req zone=one burst=5;
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
72 }
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
73
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
74 </example>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
75 позволяют в среднем не более 1 запроса в секунду
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
76 со всплесками не более 5 запросов.
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
77 </para>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
78
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
79 <para>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
80 Если же избыточные запросы в пределах лимита всплесков задерживать
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
81 не требуется, то следует использовать параметр <parameter>nodelay</parameter>:
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
82 <example>
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
83 limit_req zone=one burst=5 nodelay;
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
84 </example>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
85 </para>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
86
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
87 </directive>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
88
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
89
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
90 <directive name="limit_req_log_level">
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
91 <syntax>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
92 <value>info</value> |
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
93 <value>notice</value> |
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
94 <value>warn</value> |
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
95 <value>error</value>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
96 </syntax>
102
c76a257f3fd4 The directive name is now automatically printed in <default> and <syntax>.
Ruslan Ermilov <ru@nginx.com>
parents: 99
diff changeset
97 <default>error</default>
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
98 <context>http</context>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
99 <context>server</context>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
100 <context>location</context>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
101 <appeared-in>0.8.18</appeared-in>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
102
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
103 <para>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
104 Директива задаёт желаемый уровень записи в лог случаев ограничения
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
105 числа запросов и задержек при обработке запроса.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
106 Задержки записываются в лог с уровнем на единицу меньшим, чем ограничения,
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
107 например, если указано <command>limit_req_log_level notice</command>,
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
108 то задержки будут записываться в лог на уровне <value>info</value>.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
109 </para>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
110
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
111 </directive>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
112
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
113
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
114 <directive name="limit_req_zone">
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
115 <syntax>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
116 <argument>$переменная </argument>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
117 <parameter>zone</parameter>=<argument>название</argument>:<argument>размер </argument>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
118 <parameter>rate</parameter>=<argument>скорость</argument>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
119 </syntax>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
120 <default/>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
121 <context>http</context>
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
122
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
123 <para>
179
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
124 Директива задаёт параметры зоны,
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
125 которая хранит состояние для разных значений ключа.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
126 Состояние в частности хранит текущее число запросов.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
127 Ключом является значение заданной переменной.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
128 Пример использования:
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
129 <example>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
130 limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
131 </example>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
132 </para>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
133
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
134 <para>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
135 В данном случае состояния хранятся в зоне “one” размером 10 мегабайт,
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
136 и средняя скорость запросов для этой зоны не может превышать
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
137 1 запроса в секунду.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
138 </para>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
139
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
140 <para>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
141 В качестве ключа используется IP-адрес клиента.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
142 Обратите внимание, что вместо переменной <var>$remote_addr</var> используется
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
143 переменная <var>$binary_remote_addr</var>, позволяющая уменьшить
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
144 размер состояния до 64 байт.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
145 В зоне размером 1 мегабайт может разместиться около 16 тысяч состояний
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
146 размером 64 байта.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
147 При переполнении зоны в ответ на последующие запросы сервер будет
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
148 возвращать ошибку
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
149 <http-status code="503" text="Service Temporarily Unavailable"/>.
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
150 </para>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
151
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
152 <para>
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
153 Скорость задаётся в запросах в секунду (r/s).
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
154 Если же нужна скорость меньше одного запроса в секунду,
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
155 то она задаётся в запросах в минуту (r/m), например,
8cc01e2179a9 - Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents: 110
diff changeset
156 ползапроса в секунду — это 30r/m.
76
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
157 </para>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
158
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
159 </directive>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
160
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
161 </section>
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
162
4a4caa566120 Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff changeset
163 </module>