Mercurial > hg > nginx-site
annotate xml/ru/docs/http/ngx_http_limit_req_module.xml @ 1320:f15a983cac66
Limit conn/req: key is no longer limited to only one variable.
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Wed, 01 Oct 2014 21:56:23 +0400 |
parents | 6087d3fa6919 |
children | 7945dac7ad47 |
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 |
580
be54c443235a
Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents:
575
diff
changeset
|
3 <!-- |
be54c443235a
Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents:
575
diff
changeset
|
4 Copyright (C) Igor Sysoev |
be54c443235a
Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents:
575
diff
changeset
|
5 Copyright (C) Nginx, Inc. |
be54c443235a
Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents:
575
diff
changeset
|
6 --> |
be54c443235a
Added copyright markers to documentation sources.
Ruslan Ermilov <ru@nginx.com>
parents:
575
diff
changeset
|
7 |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
8 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd"> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
9 |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
10 <module name="Модуль ngx_http_limit_req_module" |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
11 link="/ru/docs/http/ngx_http_limit_req_module.html" |
589 | 12 lang="ru" |
1320
f15a983cac66
Limit conn/req: key is no longer limited to only one variable.
Ruslan Ermilov <ru@nginx.com>
parents:
870
diff
changeset
|
13 rev="4"> |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
14 |
110
40eec261c2a6
Added proper support for anonymous sections, notably for the summary.
Ruslan Ermilov <ru@nginx.com>
parents:
102
diff
changeset
|
15 <section id="summary"> |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
16 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
17 <para> |
271 | 18 Модуль <literal>ngx_http_limit_req_module</literal> (0.7.21) позволяет |
529
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
19 ограничить скорость обработки запросов по заданному ключу или, |
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
20 как частный случай, скорость обработки запросов, поступающих |
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
21 с одного IP-адреса. |
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
22 Ограничение обеспечивается с помощью метода “leaky bucket”. |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
23 </para> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
24 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
25 </section> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
26 |
364 | 27 |
28 <section id="example" name="Пример конфигурации"> | |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
29 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
30 <para> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
31 <example> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
32 http { |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
33 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
|
34 |
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 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
37 server { |
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 ... |
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 location /search/ { |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
42 limit_req zone=one burst=5; |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
43 } |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
44 </example> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
45 </para> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
46 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
47 </section> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
48 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
49 |
364 | 50 <section id="directives" name="Директивы"> |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
51 |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
52 <directive name="limit_req"> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
53 <syntax> |
271 | 54 <literal>zone</literal>=<value>название</value> |
55 [<literal>burst</literal>=<value>число</value>] | |
56 [<literal>nodelay</literal>]</syntax> | |
99
1d315ef37215
The case <default/> is now language-agnostic.
Ruslan Ermilov <ru@nginx.com>
parents:
76
diff
changeset
|
57 <default/> |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
58 <context>http</context> |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
59 <context>server</context> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
60 <context>location</context> |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
61 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
62 <para> |
575
ebcb351d9eb3
Consistently using the term "shared memory zone".
Ruslan Ermilov <ru@nginx.com>
parents:
529
diff
changeset
|
63 Задаёт зону разделяемой памяти (<literal>zone</literal>) |
816
c711c50bdcf4
limit_req: clarified the description of the burst= parameter.
Ruslan Ermilov <ru@nginx.com>
parents:
589
diff
changeset
|
64 и максимальный размер всплеска запросов (<literal>burst</literal>). |
529
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
65 Если скорость поступления 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
|
66 то их обработка задерживается так, чтобы запросы обрабатывались |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
67 с заданной скоростью. |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
68 Избыточные запросы задерживаются до тех пор, пока их число |
816
c711c50bdcf4
limit_req: clarified the description of the burst= parameter.
Ruslan Ermilov <ru@nginx.com>
parents:
589
diff
changeset
|
69 не превысит максимальный размер всплеска. |
529
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
70 При превышении запрос завершается с ошибкой |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
71 <http-status code="503" text="Service Temporarily Unavailable"/>. |
816
c711c50bdcf4
limit_req: clarified the description of the burst= parameter.
Ruslan Ermilov <ru@nginx.com>
parents:
589
diff
changeset
|
72 По умолчанию максимальный размер всплеска равен нулю. |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
73 Например, директивы |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
74 <example> |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
75 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
|
76 |
351
a4fa80755eab
Consistently strip initial offset in examples.
Ruslan Ermilov <ru@nginx.com>
parents:
271
diff
changeset
|
77 server { |
a4fa80755eab
Consistently strip initial offset in examples.
Ruslan Ermilov <ru@nginx.com>
parents:
271
diff
changeset
|
78 location /search/ { |
a4fa80755eab
Consistently strip initial offset in examples.
Ruslan Ermilov <ru@nginx.com>
parents:
271
diff
changeset
|
79 limit_req zone=one burst=5; |
a4fa80755eab
Consistently strip initial offset in examples.
Ruslan Ermilov <ru@nginx.com>
parents:
271
diff
changeset
|
80 } |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
81 </example> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
82 позволяют в среднем не более 1 запроса в секунду |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
83 со всплесками не более 5 запросов. |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
84 </para> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
85 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
86 <para> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
87 Если же избыточные запросы в пределах лимита всплесков задерживать |
271 | 88 не требуется, то следует использовать параметр <literal>nodelay</literal>: |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
89 <example> |
351
a4fa80755eab
Consistently strip initial offset in examples.
Ruslan Ermilov <ru@nginx.com>
parents:
271
diff
changeset
|
90 limit_req zone=one burst=5 nodelay; |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
91 </example> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
92 </para> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
93 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
94 </directive> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
95 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
96 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
97 <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
|
98 <syntax> |
271 | 99 <literal>info</literal> | |
100 <literal>notice</literal> | | |
101 <literal>warn</literal> | | |
102 <literal>error</literal></syntax> | |
102
c76a257f3fd4
The directive name is now automatically printed in <default> and <syntax>.
Ruslan Ermilov <ru@nginx.com>
parents:
99
diff
changeset
|
103 <default>error</default> |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
104 <context>http</context> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
105 <context>server</context> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
106 <context>location</context> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
107 <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
|
108 |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
109 <para> |
529
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
110 Задаёт желаемый уровень записи в лог |
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
111 случаев отказа в обработке запросов при превышении скорости |
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
112 и случаев задержек при обработке запроса. |
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
113 Задержки записываются в лог с уровнем на единицу меньшим, чем отказы, |
271 | 114 например, если указано “<literal>limit_req_log_level notice</literal>”, |
115 то задержки будут записываться в лог на уровне <literal>info</literal>. | |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
116 </para> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
117 |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
118 </directive> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
119 |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
120 |
870
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
121 <directive name="limit_req_status"> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
122 <syntax><value>код</value></syntax> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
123 <default>503</default> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
124 <context>http</context> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
125 <context>server</context> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
126 <context>location</context> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
127 <appeared-in>1.3.15</appeared-in> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
128 |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
129 <para> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
130 Позволяет переопределить код ответа, используемый при отклонении запросов. |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
131 </para> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
132 |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
133 </directive> |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
134 |
6087d3fa6919
The limit_req_status and limit_conn_status directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
816
diff
changeset
|
135 |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
136 <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
|
137 <syntax> |
1320
f15a983cac66
Limit conn/req: key is no longer limited to only one variable.
Ruslan Ermilov <ru@nginx.com>
parents:
870
diff
changeset
|
138 <value>ключ</value> |
271 | 139 <literal>zone</literal>=<value>название</value>:<value>размер</value> |
140 <literal>rate</literal>=<value>скорость</value></syntax> | |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
141 <default/> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
142 <context>http</context> |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
143 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
144 <para> |
575
ebcb351d9eb3
Consistently using the term "shared memory zone".
Ruslan Ermilov <ru@nginx.com>
parents:
529
diff
changeset
|
145 Задаёт параметры зоны разделяемой памяти, |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
146 которая хранит состояние для разных значений ключа. |
529
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
147 Состояние в частности хранит текущее число избыточных запросов. |
1320
f15a983cac66
Limit conn/req: key is no longer limited to only one variable.
Ruslan Ermilov <ru@nginx.com>
parents:
870
diff
changeset
|
148 В качестве ключа можно использовать текст, переменные и их комбинации. |
f15a983cac66
Limit conn/req: key is no longer limited to only one variable.
Ruslan Ermilov <ru@nginx.com>
parents:
870
diff
changeset
|
149 Запросы с пустым значением ключа не учитываются. |
f15a983cac66
Limit conn/req: key is no longer limited to only one variable.
Ruslan Ermilov <ru@nginx.com>
parents:
870
diff
changeset
|
150 <note> |
f15a983cac66
Limit conn/req: key is no longer limited to only one variable.
Ruslan Ermilov <ru@nginx.com>
parents:
870
diff
changeset
|
151 До версии 1.7.6 в качестве ключа можно было задать ровно одну переменную. |
f15a983cac66
Limit conn/req: key is no longer limited to only one variable.
Ruslan Ermilov <ru@nginx.com>
parents:
870
diff
changeset
|
152 </note> |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
153 Пример использования: |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
154 <example> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
155 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
|
156 </example> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
157 </para> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
158 |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
159 <para> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
160 В данном случае состояния хранятся в зоне “one” размером 10 мегабайт, |
529
d477ae38c0bd
Clarified on what this module actually limits.
Ruslan Ermilov <ru@nginx.com>
parents:
390
diff
changeset
|
161 и средняя скорость обработки запросов для этой зоны не может превышать |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
162 1 запроса в секунду. |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
163 </para> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
164 |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
165 <para> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
166 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
|
167 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
|
168 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
|
169 размер состояния до 64 байт. |
367
f4033b9bc4ec
- Removed unnecessary instances of unbreakable space.
Ruslan Ermilov <ru@nginx.com>
parents:
364
diff
changeset
|
170 В зоне размером 1 мегабайт может разместиться около 16 тысяч состояний |
179
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
171 размером 64 байта. |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
172 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
|
173 возвращать ошибку |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
174 <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
|
175 </para> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
176 |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
177 <para> |
8cc01e2179a9
- Reflected recent changes made to ngx_http_limit_conn_module.
Ruslan Ermilov <ru@nginx.com>
parents:
110
diff
changeset
|
178 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
|
179 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
|
180 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
|
181 ползапроса в секунду — это 30r/m. |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
182 </para> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
183 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
184 </directive> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
185 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
186 </section> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
187 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
188 </module> |