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annotate xml/ru/docs/http/ngx_http_split_clients_module.xml @ 102:c76a257f3fd4

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The directive name is now automatically printed in <default> and <syntax>. Specifying <default> is made non-optional. Visible changes: - "types" and "proxy_set_header" get proper defaults (not yet displayed nicely); - "fastcgi_hide_header", "fastcgi_ignore_headers", "fastcgi_pass_header", "proxy_hide_header", "proxy_ignore_headers", and "proxy_pass_header" now have their (empty) defaults documented; - mentions of "fastcgi_redirect_errors" and "proxy_redirect_errors" which are long unsupported were removed.
author Ruslan Ermilov <ru@nginx.com>
date Wed, 19 Oct 2011 05:15:24 +0000
parents 1d315ef37215
children 72524ae53106
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1 <?xml version="1.0" encoding="utf-8"?>
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2
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3 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd">
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4
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5 <module name="Директивы модуля ngx_http_split_clients_module"
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6 link="/ru/docs/http/ngx_http_split_clients_module.html"
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7 lang="ru">
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8
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9 <section name="" id="summary">
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10
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11 <para>
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12 Модуль ngx_http_split_clients_module создаёт переменные для
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13 A/B split-тестирования.
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14 </para>
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15
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16 </section>
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17
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18
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19 <section name="Пример конфигурации" id="example">
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20
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21 <para>
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22 <example>
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23 http {
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24 split_clients "${remote_addr}AAA" $variant {
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25 0.5% .one;
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26 2.0% .two;
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27 * "";
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28 }
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29
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30 server {
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31 location / {
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32 index index${variant}.html;
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33 </example>
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34 </para>
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35 </section>
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36
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37
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38 <section name="Директивы" id="directives">
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39
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40 <directive name="split_clients">
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41 <syntax><value>$переменная1 $переменная2 { ... }</value></syntax>
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42 <default/>
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43 <context>http</context>
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44
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45 <para>
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46 Директива создаёт переменную для A/B split-тестирования, например:
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47 <example>
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48 split_clients "${remote_addr}AAA" $variant {
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49 0.5% .one;
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50 2.0% .two;
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51 * "";
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52 }
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53 </example>
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54 Значение исходной строки переменных хэшируется с помощью CRC32.
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55 В приведённом примере при значениях хэша от 0 до 21474836 (0.5%)
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56 переменная $variant получит значение ".one".
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57 При значениях хэша от 21474837 до 107374182 (2%) — ".two".
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58 И при значениях хэша от 107374183 до 4294967297 — "".
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59 </para>
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60
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61 </directive>
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62
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63 </section>
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64
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65 </module>