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annotate xml/ru/docs/http/ngx_http_split_clients_module.xml @ 342:a076f7661569

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Revision.
author Ruslan Ermilov <ru@nginx.com>
date Mon, 23 Jan 2012 11:34:54 +0000
parents 4c6d2c614d2c
children bb51d3e17dd0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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bfe3eff81d04 Removed redundant encoding specification.
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1 <?xml version="1.0"?>
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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="Модуль 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 id="summary">
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10
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11 <para>
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12 Модуль <literal>ngx_http_split_clients_module</literal> создаёт переменные для
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13 A/B тестирования (также известного как “split-тестирование”).
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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 id="example" name="Пример конфигурации">
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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 id="directives" name="Директивы">
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39
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40 <directive name="split_clients">
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41 <syntax block="yes">
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42 <value>строка</value>
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43 <value>$переменная</value></syntax>
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1d315ef37215 The case <default/> is now language-agnostic.
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44 <default/>
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45 <context>http</context>
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46
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47 <para>
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48 Создаёт переменную для A/B тестирования, например:
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49 <example>
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50 split_clients "${remote_addr}AAA" $variant {
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51 0.5% .one;
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52 2.0% .two;
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53 * "";
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54 }
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55 </example>
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56 Значение исходной строки хэшируется с помощью MurmurHash2.
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57 В приведённом примере при значениях хэша от 0 до 21474836 (0.5%)
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58 переменная <var>$variant</var> получит значение <literal>".one"</literal>.
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59 При значениях хэша от 21474837 до 107374182 (2%) — <literal>".two"</literal>.
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60 И при значениях хэша от 107374183 до 4294967297 — <literal>""</literal>.
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61 </para>
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62
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63 </directive>
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64
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65 </section>
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66
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67 </module>