Mercurial > hg > nginx-site
annotate xml/ru/docs/events.xml @ 563:ffafb169cca9
Removed a dated note about kqueue causing panic on Mac OS X.
author | Ruslan Ermilov <ru@nginx.com> |
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date | Tue, 03 Jul 2012 07:03:22 +0000 |
parents | b4e34b473283 |
children | be54c443235a |
rev | line source |
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Russian documentation import.
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1 <!DOCTYPE article SYSTEM "../../../dtd/article.dtd"> |
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2 |
123
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3 <article name="Методы обработки соединений" |
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4 link="/ru/docs/events.html" |
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5 lang="ru"> |
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6 |
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7 <section> |
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8 |
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9 <para> |
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10 nginx поддерживает различные методы обработки соединений. |
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11 Наличие того или иного метода зависит от используемой платформы. |
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12 Если на платформе доступно сразу несколько методов, nginx обычно |
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13 сам выбирает наиболее эффективный метод. |
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14 Однако, при необходимости можно явно выбрать метод обработки |
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15 соединений с помощью директивы |
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16 <link doc="ngx_core_module.xml" id="use"/>. |
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17 </para> |
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18 |
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19 <para> |
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20 Поддерживаются следующие методы обработки соединений: |
461 | 21 <list type="bullet"> |
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22 |
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23 <listitem> |
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24 <para> |
271 | 25 <literal>select</literal>—стандартный метод. |
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26 Модуль для поддержки этого метода собирается автоматически, |
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27 если на платформе не обнаружено более эффективного метода. |
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28 Можно принудительно разрешить или запретить сборку этого модуля |
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29 с помощью параметров <literal>--with-select_module</literal> и |
271 | 30 <literal>--without-select_module</literal>. |
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31 </para> |
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32 </listitem> |
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33 |
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34 <listitem> |
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35 <para> |
271 | 36 <literal>poll</literal>—стандартный метод. |
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37 Модуль для поддержки этого метода собирается автоматически, |
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38 если на платформе не обнаружено более эффективного метода. |
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39 Можно принудительно разрешить или запретить сборку этого модуля |
552
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40 с помощью параметров <literal>--with-poll_module</literal> и |
271 | 41 <literal>--without-poll_module</literal>. |
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42 </para> |
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43 </listitem> |
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44 |
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45 <listitem> |
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46 <para> |
271 | 47 <literal>kqueue</literal>—эффективный метод, используемый |
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48 во FreeBSD 4.1+, OpenBSD 2.9+, NetBSD 2.0 и Mac OS X. |
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49 </para> |
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50 </listitem> |
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51 |
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52 <listitem> |
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53 <para> |
271 | 54 <literal>epoll</literal>—эффективный метод, используемый |
552
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55 в Linux 2.6+. |
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56 <note> |
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57 В некоторых старых дистрибутивах, например SuSE 8.2, |
76
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58 есть патчи для поддержки epoll ядром 2.4. |
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59 </note> |
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60 </para> |
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61 </listitem> |
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62 |
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63 <listitem> |
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64 <para> |
271 | 65 <literal>rtsig</literal>—real time signals, эффективный метод, |
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66 используемый в Linux 2.2.19+. |
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67 По умолчанию в общесистемной очереди событий может одновременно |
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68 находиться не более 1024 сигналов. |
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69 На нагруженных серверах может потребоваться увеличить размер очереди |
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70 с помощью параметра ядра <path>/proc/sys/kernel/rtsig-max</path>. |
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71 Однако, начиная с Linux 2.6.6-mm2, этого параметра уже нет и для каждого |
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72 процесса существует отдельная очередь сигналов, размер которой |
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73 ограничивается с помощью <literal>RLIMIT_SIGPENDING</literal> |
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74 (см. также <link doc="ngx_core_module.xml" id="worker_rlimit_sigpending"/>). |
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75 </para> |
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76 |
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77 <para> |
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78 При переполнении очереди nginx сбрасывает её и начинает обрабатывать |
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79 соединения с помощью метода <literal>poll</literal> до тех пор, |
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80 пока ситуация не нормализуется. |
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81 </para> |
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82 </listitem> |
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83 |
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84 <listitem> |
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85 <para> |
271 | 86 <literal>/dev/poll</literal>—эффективный метод, используемый |
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87 в Solaris 7 11/99+, HP/UX 11.22+ (eventport), IRIX 6.5.15+ |
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88 и Tru64 UNIX 5.1A+. |
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89 </para> |
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90 </listitem> |
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91 |
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92 <listitem> |
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93 <para> |
271 | 94 <literal>eventport</literal>—event ports, эффективный метод, |
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95 используемый в Solaris 10. |
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96 </para> |
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97 </listitem> |
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98 |
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99 </list> |
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100 </para> |
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101 |
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102 </section> |
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103 |
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104 </article> |