Mercurial > hg > nginx-site
annotate xml/en/docs/stream/ngx_stream_upstream_module.xml @ 1851:9463f1412255
Documented ngx_google_perftools_module.
author | Yaroslav Zhuravlev <yar@nginx.com> |
---|---|
date | Mon, 05 Dec 2016 21:01:46 +0300 |
parents | 0160e8784417 |
children | 6f2c5a36b4d1 |
rev | line source |
---|---|
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
1 <?xml version="1.0"?> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
2 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
3 <!-- |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
4 Copyright (C) Nginx, Inc. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
5 --> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
6 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
7 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
8 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
9 <module name="Module ngx_stream_upstream_module" |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
10 link="/en/docs/stream/ngx_stream_upstream_module.html" |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
11 lang="en" |
1817
0160e8784417
Documented behavior of server slow_start with ip_hash and hash.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1809
diff
changeset
|
12 rev="21"> |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
13 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
14 <section id="summary"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
15 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
16 <para> |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
17 The <literal>ngx_stream_upstream_module</literal> module (1.9.0) |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
18 is used to define groups of servers that can be referenced |
1405
4569719f4247
Split stream module into stream_core and stream_proxy modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1367
diff
changeset
|
19 by the <link doc="ngx_stream_proxy_module.xml" id="proxy_pass"/> |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
20 directive. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
21 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
22 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
23 </section> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
24 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
25 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
26 <section id="example" name="Example Configuration"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
27 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
28 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
29 <example> |
1406
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
30 upstream <emphasis>backend</emphasis> { |
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
31 hash $remote_addr consistent; |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
32 |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
33 server backend1.example.com:12345 weight=5; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
34 server backend2.example.com:12345; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
35 server unix:/tmp/backend3; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
36 |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
37 server backup1.example.com:12345 backup; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
38 server backup2.example.com:12345 backup; |
1406
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
39 } |
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
40 |
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
41 server { |
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
42 listen 12346; |
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
43 proxy_pass <emphasis>backend</emphasis>; |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
44 } |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
45 </example> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
46 </para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
47 |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
48 <para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
49 Dynamically configurable group, |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
50 available as part of our |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
51 <commercial_version>commercial subscription</commercial_version>: |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
52 <example> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
53 resolver 10.0.0.1; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
54 |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
55 upstream <emphasis>dynamic</emphasis> { |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
56 zone upstream_dynamic 64k; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
57 |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
58 server backend1.example.com:12345 weight=5; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
59 server backend2.example.com:12345 fail_timeout=5s slow_start=30s; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
60 server 192.0.2.1:12345 max_fails=3; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
61 server backend3.example.com:12345 resolve; |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
62 server backend4.example.com service=http resolve; |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
63 |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
64 server backup1.example.com:12345 backup; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
65 server backup2.example.com:12345 backup; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
66 } |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
67 |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
68 server { |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
69 listen 12346; |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
70 proxy_pass <emphasis>dynamic</emphasis>; |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
71 health_check; |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
72 } |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
73 </example> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
74 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
75 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
76 </section> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
77 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
78 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
79 <section id="directives" name="Directives"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
80 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
81 <directive name="upstream"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
82 <syntax block="yes"><value>name</value></syntax> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
83 <default/> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
84 <context>stream</context> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
85 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
86 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
87 Defines a group of servers. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
88 Servers can listen on different ports. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
89 In addition, servers listening on TCP and UNIX-domain sockets |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
90 can be mixed. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
91 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
92 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
93 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
94 Example: |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
95 <example> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
96 upstream backend { |
1406
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
97 server backend1.example.com:12345 weight=5; |
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
98 server 127.0.0.1:12345 max_fails=3 fail_timeout=30s; |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
99 server unix:/tmp/backend2; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
100 server backend3.example.com:12345 resolve; |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
101 |
1406
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
102 server backup1.example.com:12345 backup; |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
103 } |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
104 </example> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
105 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
106 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
107 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
108 By default, connections are distributed between the servers using a |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
109 weighted round-robin balancing method. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
110 In the above example, each 7 connections will be distributed as follows: |
1406
ea73cd9d4cdb
Changed stream_upstream examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1405
diff
changeset
|
111 5 connections go to <literal>backend1.example.com:12345</literal> |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
112 and one connection to each of the second and third servers. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
113 If an error occurs during communication with a server, the connection will |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
114 be passed to the next server, and so on until all of the functioning |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
115 servers will be tried. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
116 If communication with all servers fails, the connection will be closed. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
117 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
118 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
119 </directive> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
120 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
121 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
122 <directive name="server"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
123 <syntax><value>address</value> [<value>parameters</value>]</syntax> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
124 <default/> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
125 <context>upstream</context> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
126 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
127 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
128 Defines the <value>address</value> and other <value>parameters</value> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
129 of a server. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
130 The address can be specified as a domain name or IP address |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
131 with an obligatory port, or as a UNIX-domain socket path |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
132 specified after the “<literal>unix:</literal>” prefix. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
133 A domain name that resolves to several IP addresses defines |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
134 multiple servers at once. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
135 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
136 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
137 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
138 The following parameters can be defined: |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
139 <list type="tag"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
140 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
141 <tag-name id="weight"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
142 <literal>weight</literal>=<value>number</value> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
143 </tag-name> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
144 <tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
145 sets the weight of the server, by default, 1. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
146 </tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
147 |
1800
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
148 <tag-name id="max_conns"> |
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
149 <literal>max_conns</literal>=<value>number</value> |
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
150 </tag-name> |
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
151 <tag-desc> |
1801
592f9fa804f6
Added info about shared memory to max_conns.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1800
diff
changeset
|
152 limits the maximum <value>number</value> of simultaneous |
592f9fa804f6
Added info about shared memory to max_conns.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1800
diff
changeset
|
153 connections to the proxied server (1.11.5). |
1800
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
154 Default value is zero, meaning there is no limit. |
1801
592f9fa804f6
Added info about shared memory to max_conns.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1800
diff
changeset
|
155 If the server group does not reside in the <link id="zone">shared memory</link>, |
592f9fa804f6
Added info about shared memory to max_conns.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1800
diff
changeset
|
156 the limitation works per each worker process. |
1800
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
157 <note> |
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
158 Prior to version 1.11.5, this parameter was available as part of our |
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
159 <commercial_version>commercial subscription</commercial_version>. |
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
160 </note> |
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
161 </tag-desc> |
9d722e4153ab
Documented the "max_conns" parameter as opensource.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1774
diff
changeset
|
162 |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
163 <tag-name id="max_fails"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
164 <literal>max_fails</literal>=<value>number</value> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
165 </tag-name> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
166 <tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
167 sets the number of unsuccessful attempts to communicate with the server |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
168 that should happen in the duration set by the <literal>fail_timeout</literal> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
169 parameter to consider the server unavailable for a duration also set by the |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
170 <literal>fail_timeout</literal> parameter. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
171 By default, the number of unsuccessful attempts is set to 1. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
172 The zero value disables the accounting of attempts. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
173 Here, an unsuccessful attempt is an error or timeout |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
174 while establishing a connection with the server. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
175 </tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
176 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
177 <tag-name id="fail_timeout"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
178 <literal>fail_timeout</literal>=<value>time</value> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
179 </tag-name> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
180 <tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
181 sets |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
182 <list type="bullet"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
183 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
184 <listitem> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
185 the time during which the specified number of unsuccessful attempts to |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
186 communicate with the server should happen to consider the server unavailable; |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
187 </listitem> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
188 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
189 <listitem> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
190 and the period of time the server will be considered unavailable. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
191 </listitem> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
192 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
193 </list> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
194 By default, the parameter is set to 10 seconds. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
195 </tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
196 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
197 <tag-name id="backup"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
198 <literal>backup</literal> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
199 </tag-name> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
200 <tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
201 marks the server as a backup server. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
202 Connections to the backup server will be passed |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
203 when the primary servers are unavailable. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
204 </tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
205 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
206 <tag-name id="down"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
207 <literal>down</literal> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
208 </tag-name> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
209 <tag-desc> |
1410
f5dcc23b214f
Deleted info about hash and ip_hash from the down parameter.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1406
diff
changeset
|
210 marks the server as permanently unavailable. |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
211 </tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
212 |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
213 </list> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
214 </para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
215 |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
216 <para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
217 Additionally, |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
218 the following parameters are available as part of our |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
219 <commercial_version>commercial subscription</commercial_version>: |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
220 <list type="tag"> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
221 |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
222 <tag-name id="resolve"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
223 <literal>resolve</literal> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
224 </tag-name> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
225 <tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
226 monitors changes of the IP addresses |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
227 that correspond to a domain name of the server, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
228 and automatically modifies the upstream configuration |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
229 without the need of restarting nginx. |
1581
201bf8fa69e5
Added shared memory requirement to resolver in http and stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1495
diff
changeset
|
230 The server group must reside in the <link id="zone">shared memory</link>. |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
231 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
232 In order for this parameter to work, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
233 the <link doc="ngx_stream_core_module.xml" id="resolver"/> directive |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
234 must be specified in the |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
235 <link doc="ngx_stream_core_module.xml" id="stream"/> block. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
236 Example: |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
237 <example> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
238 stream { |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
239 resolver 10.0.0.1; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
240 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
241 upstream u { |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
242 zone ...; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
243 ... |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
244 server example.com:12345 resolve; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
245 } |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
246 } |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
247 </example> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
248 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
249 </tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
250 |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
251 <tag-name id="service"> |
1700
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
252 <literal>service</literal>=<value>name</value> |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
253 </tag-name> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
254 <tag-desc> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
255 enables resolving of DNS |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
256 <link url="https://tools.ietf.org/html/rfc2782">SRV</link> |
1700
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
257 records and sets the service <value>name</value> (1.9.13). |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
258 In order for this parameter to work, it is necessary to specify |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
259 the <link id="resolve"/> parameter for the server |
1700
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
260 and specify a hostname without a port number. |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
261 <para> |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
262 If the service name does not contain a dot (“<literal>.</literal>”), then |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
263 the <link url="https://tools.ietf.org/html/rfc2782">RFC</link>-compliant name |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
264 is constructed |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
265 and the TCP protocol is added to the service prefix. |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
266 For example, to look up the |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
267 <literal>_http._tcp.backend.example.com</literal> SRV record, |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
268 it is necessary to specify the directive: |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
269 <example> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
270 server backend.example.com service=http resolve; |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
271 </example> |
1700
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
272 If the service name contains one or more dots, then the name is constructed |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
273 by joining the service prefix and the server name. |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
274 For example, to look up the <literal>_http._tcp.backend.example.com</literal> |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
275 and <literal>server1.backend.example.com</literal> SRV records, |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
276 it is necessary to specify the directives: |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
277 <example> |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
278 server backend.example.com service=_http._tcp resolve; |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
279 server example.com service=server1.backend resolve; |
1dbef8ab47c7
Updated description of service parameter in upstream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1680
diff
changeset
|
280 </example> |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
281 </para> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
282 |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
283 <para> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
284 Highest-priority SRV records |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
285 (records with the same lowest-number priority value) |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
286 are resolved as primary servers, |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
287 the rest of SRV records are resolved as backup servers. |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
288 If the <link id="backup"/> parameter is specified for the server, |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
289 high-priority SRV records are resolved as backup servers, |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
290 the rest of SRV records are ignored. |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
291 </para> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
292 </tag-desc> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
293 |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
294 <tag-name id="slow_start"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
295 <literal>slow_start</literal>=<value>time</value> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
296 </tag-name> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
297 <tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
298 sets the <value>time</value> during which the server will recover its weight |
1727
1a16dce51bce
Unified description of slow_start in stream with http.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1700
diff
changeset
|
299 from zero to a nominal value, when unhealthy server becomes |
1a16dce51bce
Unified description of slow_start in stream with http.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1700
diff
changeset
|
300 <link id="health_check">healthy</link>, |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
301 or when the server becomes available after a period of time |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
302 it was considered <link id="fail_timeout">unavailable</link>. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
303 Default value is zero, i.e. slow start is disabled. |
1817
0160e8784417
Documented behavior of server slow_start with ip_hash and hash.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1809
diff
changeset
|
304 <note> |
0160e8784417
Documented behavior of server slow_start with ip_hash and hash.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1809
diff
changeset
|
305 The parameter cannot be used along with the |
0160e8784417
Documented behavior of server slow_start with ip_hash and hash.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1809
diff
changeset
|
306 <link id="hash"/> load balancing method. |
0160e8784417
Documented behavior of server slow_start with ip_hash and hash.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1809
diff
changeset
|
307 </note> |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
308 </tag-desc> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
309 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
310 </list> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
311 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
312 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
313 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
314 <note> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
315 If there is only a single server in a group, <literal>max_fails</literal>, |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
316 <literal>fail_timeout</literal> and <literal>slow_start</literal> parameters |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
317 are ignored, and such a server will never be considered unavailable. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
318 </note> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
319 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
320 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
321 </directive> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
322 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
323 |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
324 <directive name="zone"> |
1495
8d134b482cc3
Documented zone usage with many upstreams.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1462
diff
changeset
|
325 <syntax><value>name</value> [<value>size</value>]</syntax> |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
326 <default/> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
327 <context>upstream</context> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
328 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
329 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
330 Defines the <value>name</value> and <value>size</value> of the shared |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
331 memory zone that keeps the group’s configuration and run-time state that are |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
332 shared between worker processes. |
1495
8d134b482cc3
Documented zone usage with many upstreams.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1462
diff
changeset
|
333 Several groups may share the same zone. |
8d134b482cc3
Documented zone usage with many upstreams.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1462
diff
changeset
|
334 In this case, it is enough to specify the zone size only once. |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
335 </para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
336 |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
337 <para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
338 Additionally, |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
339 as part of our <commercial_version>commercial subscription</commercial_version>, |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
340 such groups allow changing the group membership |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
341 or modifying the settings of a particular server |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
342 without the need of restarting nginx. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
343 The configuration is accessible via a special location |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
344 handled by |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
345 <link doc="../http/ngx_http_upstream_conf_module.xml" id="upstream_conf"/>. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
346 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
347 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
348 </directive> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
349 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
350 |
1636
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
351 <directive name="state"> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
352 <syntax><value>file</value></syntax> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
353 <default/> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
354 <context>upstream</context> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
355 <appeared-in>1.9.7</appeared-in> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
356 |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
357 <para> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
358 Specifies a <value>file</value> that keeps the state |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
359 of the dynamically configurable group. |
1809
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
360 </para> |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
361 |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
362 <para> |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
363 Examples: |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
364 <example> |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
365 state /var/lib/nginx/state/servers.conf; # path for Linux |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
366 state /var/db/nginx/state/servers.conf; # path for FreeBSD |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
367 </example> |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
368 </para> |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
369 |
2245f2827e2f
Added examples of Linux and FreeBSD paths to "state" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1801
diff
changeset
|
370 <para> |
1636
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
371 The state is currently limited to the list of servers with their parameters. |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
372 The file is read when parsing the configuration and is updated each time |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
373 the upstream configuration is |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
374 <link doc="ngx_http_upstream_conf_module.xml" id="upstream_conf">changed</link>. |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
375 Changing the file content directly should be avoided. |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
376 The directive cannot be used |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
377 along with the <link id="server"/> directive. |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
378 </para> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
379 |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
380 <para> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
381 <note> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
382 Changes made during |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
383 <link doc="../control.xml" id="reconfiguration">configuration reload</link> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
384 or <link doc="../control.xml" id="upgrade">binary upgrade</link> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
385 can be lost. |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
386 </note> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
387 </para> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
388 |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
389 <para> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
390 <note> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
391 This directive is available as part of our |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
392 <commercial_version>commercial subscription</commercial_version>. |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
393 </note> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
394 </para> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
395 |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
396 </directive> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
397 |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
398 |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
399 <directive name="hash"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
400 <syntax><value>key</value> [<literal>consistent</literal>]</syntax> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
401 <default/> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
402 <context>upstream</context> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
403 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
404 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
405 Specifies a load balancing method for a server group |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
406 where client-server mapping is based on the hashed <value>key</value> value. |
1744
ab56dcd73af2
Added variables to stream hash, limit_conn_zone, proxy_bind.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1727
diff
changeset
|
407 The <value>key</value> can contain text, variables, |
ab56dcd73af2
Added variables to stream hash, limit_conn_zone, proxy_bind.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1727
diff
changeset
|
408 and their combinations (1.11.2). |
ab56dcd73af2
Added variables to stream hash, limit_conn_zone, proxy_bind.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1727
diff
changeset
|
409 Usage example: |
ab56dcd73af2
Added variables to stream hash, limit_conn_zone, proxy_bind.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1727
diff
changeset
|
410 <example> |
ab56dcd73af2
Added variables to stream hash, limit_conn_zone, proxy_bind.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1727
diff
changeset
|
411 hash $remote_addr; |
ab56dcd73af2
Added variables to stream hash, limit_conn_zone, proxy_bind.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1727
diff
changeset
|
412 </example> |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
413 Note that adding or removing a server from the group |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
414 may result in remapping most of the keys to different servers. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
415 The method is compatible with the |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
416 <link url="http://search.cpan.org/perldoc?Cache%3A%3AMemcached">Cache::Memcached</link> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
417 Perl library. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
418 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
419 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
420 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
421 If the <literal>consistent</literal> parameter is specified, |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
422 the <link url="http://www.last.fm/user/RJ/journal/2007/04/10/392555/">ketama</link> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
423 consistent hashing method will be used instead. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
424 The method ensures that only a few keys |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
425 will be remapped to different servers |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
426 when a server is added to or removed from the group. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
427 This helps to achieve a higher cache hit ratio for caching servers. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
428 The method is compatible with the |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
429 <link url="http://search.cpan.org/perldoc?Cache%3A%3AMemcached%3A%3AFast">Cache::Memcached::Fast</link> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
430 Perl library with the <value>ketama_points</value> parameter set to 160. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
431 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
432 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
433 </directive> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
434 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
435 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
436 <directive name="least_conn"> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
437 <syntax/> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
438 <default/> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
439 <context>upstream</context> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
440 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
441 <para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
442 Specifies that a server group should use a load balancing method |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
443 where a connection |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
444 is passed to the server with the least number of active connections, |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
445 taking into account weights of servers. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
446 If there are several such servers, they are tried in turn using a |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
447 weighted round-robin balancing method. |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
448 </para> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
449 |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
450 </directive> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
451 |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
452 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
453 <directive name="least_time"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
454 <syntax><literal>connect</literal> | |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
455 <literal>first_byte</literal> | |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
456 <literal>last_byte</literal></syntax> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
457 <default/> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
458 <context>upstream</context> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
459 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
460 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
461 Specifies that a group should use a load balancing method where a connection |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
462 is passed to the server with the least average time and |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
463 least number of active connections, taking into account weights of servers. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
464 If there are several such servers, they are tried in turn using a |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
465 weighted round-robin balancing method. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
466 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
467 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
468 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
469 If the <literal>connect</literal> parameter is specified, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
470 time to connect to the upstream server is used. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
471 If the <literal>first_byte</literal> parameter is specified, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
472 time to receive the first byte of data is used. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
473 If the <literal>last_byte</literal> is specified, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
474 time to receive the last byte of data is used. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
475 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
476 |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
477 <para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
478 <note> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
479 This directive is available as part of our |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
480 <commercial_version>commercial subscription</commercial_version>. |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
481 </note> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
482 </para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
483 |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
484 </directive> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
485 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
486 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
487 <directive name="health_check"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
488 <syntax>[<value>parameters</value>]</syntax> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
489 <default/> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
490 <context>server</context> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
491 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
492 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
493 Enables periodic health checks of the servers in a |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
494 <link id="upstream">group</link>. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
495 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
496 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
497 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
498 The following optional parameters are supported: |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
499 <list type="tag"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
500 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
501 <tag-name id="interval"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
502 <literal>interval</literal>=<value>time</value> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
503 </tag-name> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
504 <tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
505 sets the interval between two consecutive health checks, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
506 by default, 5 seconds; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
507 </tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
508 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
509 <tag-name id="fails"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
510 <literal>fails</literal>=<value>number</value> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
511 </tag-name> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
512 <tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
513 sets the number of consecutive failed health checks of a particular server |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
514 after which this server will be considered unhealthy, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
515 by default, 1; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
516 </tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
517 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
518 <tag-name id="passes"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
519 <literal>passes</literal>=<value>number</value> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
520 </tag-name> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
521 <tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
522 sets the number of consecutive passed health checks of a particular server |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
523 after which the server will be considered healthy, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
524 by default, 1; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
525 </tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
526 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
527 <tag-name id="hc_match"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
528 <literal>match</literal>=<value>name</value> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
529 </tag-name> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
530 <tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
531 specifies the <literal>match</literal> block configuring the tests that a |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
532 successful connection should pass in order for a health check to pass. |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
533 By default, |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
534 only the ability to establish a TCP connection with the server is checked; |
1636
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
535 </tag-desc> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
536 |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
537 <tag-name id="health_check_port"> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
538 <literal>port</literal>=<value>number</value> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
539 </tag-name> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
540 <tag-desc> |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
541 defines the port used when connecting to a server |
44c4323144c5
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1581
diff
changeset
|
542 to perform a health check (1.9.7); |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
543 by default, equals the <link id="server"/> port; |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
544 </tag-desc> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
545 |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
546 <tag-name id="health_check_udp"> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
547 <literal>udp</literal> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
548 </tag-name> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
549 <tag-desc> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
550 specifies that the <literal>UDP</literal> protocol should be used for |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
551 health checks instead of the default <literal>TCP</literal> protocol (1.9.13); |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
552 requires a <link id="hc_match">match</link> block with the |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
553 <link id="match_send">send</link> and <link id="match_expect">expect</link> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
554 parameters. |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
555 </tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
556 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
557 </list> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
558 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
559 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
560 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
561 For example, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
562 <example> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
563 server { |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
564 proxy_pass backend; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
565 health_check; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
566 } |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
567 </example> |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
568 will check the ability to establish a TCP connection to each server |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
569 in the <literal>backend</literal> group every five seconds. |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
570 When a connection to the server cannot be established, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
571 the health check will fail, and the server will |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
572 be considered unhealthy. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
573 Client connections are not passed to unhealthy servers. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
574 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
575 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
576 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
577 Health checks can also be configured to test data obtained from the server. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
578 Tests are configured separately using the <link id="match"/> directive |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
579 and referenced in the <literal>match</literal> parameter. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
580 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
581 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
582 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
583 The server group must reside in the <link id="zone">shared memory</link>. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
584 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
585 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
586 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
587 If several health checks are defined for the same group of servers, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
588 a single failure of any check will make the corresponding server be |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
589 considered unhealthy. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
590 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
591 |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
592 <para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
593 <note> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
594 This directive is available as part of our |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
595 <commercial_version>commercial subscription</commercial_version>. |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
596 </note> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
597 </para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
598 |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
599 </directive> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
600 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
601 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
602 <directive name="health_check_timeout"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
603 <syntax><value>timeout</value></syntax> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
604 <default>5s</default> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
605 <context>stream</context> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
606 <context>server</context> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
607 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
608 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
609 Overrides the |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
610 <link doc="ngx_stream_proxy_module.xml" id="proxy_timeout"/> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
611 value for health checks. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
612 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
613 |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
614 <para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
615 <note> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
616 This directive is available as part of our |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
617 <commercial_version>commercial subscription</commercial_version>. |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
618 </note> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
619 </para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
620 |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
621 </directive> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
622 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
623 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
624 <directive name="match"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
625 <syntax block="yes"><value>name</value> </syntax> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
626 <default/> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
627 <context>stream</context> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
628 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
629 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
630 Defines the named test set used to verify server responses to health checks. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
631 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
632 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
633 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
634 The following parameters can be configured: |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
635 <list type="tag"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
636 |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
637 <tag-name id="match_send"> |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
638 <literal>send</literal> <value>string</value>; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
639 </tag-name> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
640 <tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
641 sends a <value>string</value> to the server; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
642 </tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
643 |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
644 <tag-name id="match_expect"> |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
645 <literal>expect</literal> <value>string</value> | |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
646 <literal>~</literal> <value>regex</value>; |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
647 </tag-name> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
648 <tag-desc> |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
649 a literal string (1.9.12) or a regular expression |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
650 that the data obtained from the server should match. |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
651 The regular expression is specified with the preceding |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
652 “<literal>~*</literal>” modifier (for case-insensitive matching), or the |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
653 “<literal>~</literal>” modifier (for case-sensitive matching). |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
654 </tag-desc> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
655 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
656 </list> |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
657 Both <literal>send</literal> and <literal>expect</literal> parameters |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
658 can contain hexadecimal literals with the prefix “<literal>\x</literal>” |
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
659 followed by two hex digits, for example, “<literal>\x80</literal>” (1.9.12). |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
660 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
661 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
662 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
663 Health check is passed if: |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
664 <list type="bullet"> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
665 <listitem> |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
666 the TCP connection was successfully established; |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
667 </listitem> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
668 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
669 <listitem> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
670 the <value>string</value> from the <literal>send</literal> parameter, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
671 if specified, was sent; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
672 </listitem> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
673 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
674 <listitem> |
1680
57c3f36b3b6a
Updated docs for the upcoming NGINX Plus release.
Ruslan Ermilov <ru@nginx.com>
parents:
1654
diff
changeset
|
675 the data obtained from the server matched the string or regular expression |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
676 from the <literal>expect</literal> parameter, if specified; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
677 </listitem> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
678 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
679 <listitem> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
680 the time elapsed does not exceed the value specified |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
681 in the <link id="health_check_timeout"/> directive. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
682 </listitem> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
683 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
684 </list> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
685 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
686 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
687 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
688 Example: |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
689 <example> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
690 upstream backend { |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
691 zone upstream_backend 10m; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
692 server 127.0.0.1:12345; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
693 } |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
694 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
695 match http { |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
696 send "GET / HTTP/1.0\r\nHost: localhost\r\n\r\n"; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
697 expect ~ "200 OK"; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
698 } |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
699 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
700 server { |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
701 listen 12346; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
702 proxy_pass backend; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
703 health_check match=http; |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
704 } |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
705 </example> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
706 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
707 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
708 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
709 <note> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
710 Only the first |
1654
f5dcf57c5eb5
Corrected note in the stream "match" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1636
diff
changeset
|
711 <link doc="ngx_stream_proxy_module.xml" id="proxy_buffer_size"/> |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
712 bytes of data obtained from the server are examined. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
713 </note> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
714 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
715 |
1462
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
716 <para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
717 <note> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
718 This directive is available as part of our |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
719 <commercial_version>commercial subscription</commercial_version>. |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
720 </note> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
721 </para> |
e69e4dbcc760
Documented OSS stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
1450
diff
changeset
|
722 |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
723 </directive> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1410
diff
changeset
|
724 |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
725 </section> |
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
726 |
1772
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
727 |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
728 <section id="variables" name="Embedded Variables"> |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
729 |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
730 <para> |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
731 The <literal>ngx_stream_upstream_module</literal> module |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
732 supports the following embedded variables: |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
733 <list type="tag"> |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
734 |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
735 <tag-name id="var_upstream_addr"><var>$upstream_addr</var></tag-name> |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
736 <tag-desc> |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
737 keeps the IP address and port, |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
738 or the path to the UNIX-domain socket of the upstream server (1.11.4). |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
739 If several servers were contacted during proxying, |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
740 their addresses are separated by commas, e.g. |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
741 “<literal>192.168.1.1:12345, 192.168.1.2:12345, unix:/tmp/sock</literal>”. |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
742 </tag-desc> |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
743 |
1773
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
744 <tag-name id="var_upstream_bytes_sent"><var>$upstream_bytes_sent</var></tag-name> |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
745 <tag-desc> |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
746 number of bytes sent to an upstream server (1.11.4). |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
747 Values from several connections |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
748 are separated by commas like addresses in the |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
749 <link id="var_upstream_addr">$upstream_addr</link> variable. |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
750 </tag-desc> |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
751 |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
752 <tag-name id="var_upstream_bytes_received"><var>$upstream_bytes_received</var></tag-name> |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
753 <tag-desc> |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
754 number of bytes received from an upstream server (1.11.4). |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
755 Values from several connections |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
756 are separated by commas like addresses in the |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
757 <link id="var_upstream_addr">$upstream_addr</link> variable. |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
758 </tag-desc> |
9c48a717e001
Documented $upstream_bytes_sent, $upstream_bytes_received in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1772
diff
changeset
|
759 |
1774
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
760 <tag-name id="var_upstream_connect_time"><var>$upstream_connect_time</var></tag-name> |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
761 <tag-desc> |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
762 time to connect to the upstream server (1.11.4); |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
763 the time is kept in seconds with millisecond resolution. |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
764 Times of several connections |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
765 are separated by commas like addresses in the |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
766 <link id="var_upstream_addr">$upstream_addr</link> variable. |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
767 </tag-desc> |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
768 |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
769 <tag-name id="var_upstream_first_byte_time"><var>$upstream_first_byte_time</var></tag-name> |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
770 <tag-desc> |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
771 time to receive the first byte of data (1.11.4); |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
772 the time is kept in seconds with millisecond resolution. |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
773 Times of several connections |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
774 are separated by commas like addresses in the |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
775 <link id="var_upstream_addr">$upstream_addr</link> variable. |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
776 </tag-desc> |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
777 |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
778 <tag-name id="var_upstream_session_time"><var>$upstream_session_time</var></tag-name> |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
779 <tag-desc> |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
780 session duration in seconds with millisecond resolution (1.11.4). |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
781 Times of several connections |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
782 are separated by commas like addresses in the |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
783 <link id="var_upstream_addr">$upstream_addr</link> variable. |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
784 </tag-desc> |
e1e0c5b27515
Documented $upstream_connect_time, $upstream_first_byte_time, $upstream_session_time.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1773
diff
changeset
|
785 |
1772
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
786 </list> |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
787 </para> |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
788 |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
789 </section> |
536dc1885e24
Documented the $upstream_addr variable in stream.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1744
diff
changeset
|
790 |
1367
f1e14d87d833
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
diff
changeset
|
791 </module> |