Mercurial > hg > nginx-site
annotate xml/en/docs/http/ngx_http_split_clients_module.xml @ 2769:16f6fa718be2
Updated TLSv1.3 support notes.
Previous notes described some early development snapshot of OpenSSL 1.1.1
with disabled TLSv1.3 by default. It was then enabled in the first alpha.
Further, the updated text covers later major releases such as OpenSSL 3.0.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Thu, 30 Sep 2021 16:29:20 +0300 |
parents | 95c3c3bbf1ce |
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rev | line source |
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1 <?xml version="1.0"?> |
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2 |
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3 <!-- |
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4 Copyright (C) Igor Sysoev |
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5 Copyright (C) Nginx, Inc. |
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6 --> |
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7 |
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8 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd"> |
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9 |
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10 <module name="Module ngx_http_split_clients_module" |
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11 link="/en/docs/http/ngx_http_split_clients_module.html" |
589 | 12 lang="en" |
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13 rev="2"> |
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14 |
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15 <section id="summary"> |
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16 |
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17 <para> |
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18 The <literal>ngx_http_split_clients_module</literal> module creates |
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19 variables suitable for A/B testing, also known as split testing. |
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20 </para> |
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21 |
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22 </section> |
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23 |
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24 |
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25 <section id="example" name="Example Configuration"> |
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26 |
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27 <para> |
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28 <example> |
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29 http { |
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30 split_clients "${remote_addr}AAA" $variant { |
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31 0.5% .one; |
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32 2.0% .two; |
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33 * ""; |
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34 } |
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35 |
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36 server { |
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37 location / { |
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38 index index${variant}.html; |
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39 </example> |
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40 </para> |
364 | 41 |
348
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42 </section> |
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43 |
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44 |
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45 <section id="directives" name="Directives"> |
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46 |
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47 <directive name="split_clients"> |
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48 <syntax block="yes"> |
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49 <value>string</value> |
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50 <value>$variable</value></syntax> |
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51 <default/> |
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52 <context>http</context> |
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53 |
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54 <para> |
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55 Creates a variable for A/B testing, for example: |
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56 <example> |
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57 split_clients "${remote_addr}AAA" $variant { |
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58 0.5% .one; |
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59 2.0% .two; |
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60 * ""; |
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61 } |
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62 </example> |
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63 The value of the original string is hashed using MurmurHash2. |
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64 In the example given, hash values from 0 to 21474835 (0.5%) |
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66 value <literal>".one"</literal> of the <var>$variant</var> variable, | |
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67 hash values from 21474836 to 107374180 (2%) correspond to |
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68 the value <literal>".two"</literal>, |
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69 and hash values from 107374181 to 4294967295 correspond to |
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70 the value <literal>""</literal> (an empty string). |
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71 </para> |
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72 |
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73 </directive> |
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74 |
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75 </section> |
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76 |
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77 </module> |