Mercurial > hg > nginx-site
annotate xml/ru/docs/debugging_log.xml @ 2384:144c8e3d6c09
Documented variables support in limit_rate and limit_rate_after.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Wed, 15 May 2019 18:42:38 +0300 |
parents | 0108c6525d2a |
children | b274d289798d |
rev | line source |
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580
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1 <!-- |
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2 Copyright (C) Igor Sysoev |
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3 Copyright (C) Nginx, Inc. |
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4 --> |
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5 |
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6 <!DOCTYPE article SYSTEM "../../../dtd/article.dtd"> |
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7 |
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8 <article name="Отладочный лог" |
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9 link="/ru/docs/debugging_log.html" |
589 | 10 lang="ru" |
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11 rev="5"> |
214
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12 |
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13 |
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14 <section> |
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15 |
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16 <para> |
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17 Для работы отладочного лога nginx должен быть сконфигурирован с поддержкой |
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18 отладки на этапе сборки: |
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19 |
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20 <programlisting> |
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21 ./configure --with-debug ... |
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22 </programlisting> |
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23 |
271 | 24 Затем нужно задать уровень <literal>debug</literal> с помощью |
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25 директивы <link doc="ngx_core_module.xml" id="error_log"/>: |
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26 |
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27 <programlisting> |
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28 error_log /path/to/log debug; |
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29 </programlisting> |
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30 |
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31 Чтобы убедиться, что поддержка отладки сконфигурирована, |
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32 необходимо выполнить команду <command>nginx -V</command>: |
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33 |
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34 <programlisting> |
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35 configure arguments: --with-debug ... |
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36 </programlisting> |
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37 |
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38 Готовые пакеты для <link doc="../linux_packages.xml">Linux</link> |
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39 по умолчанию предоставляют поддержку отладочного лога |
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40 при помощи бинарного файла <literal>nginx-debug</literal> (1.9.8), |
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41 который можно запустить при помощи команд |
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42 |
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43 <programlisting> |
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44 service nginx stop |
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45 service nginx-debug start |
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46 </programlisting> |
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47 |
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48 и затем задать уровень <literal>debug</literal>. |
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49 Бинарная версия nginx для Windows всегда собирается с поддержкой отладочного |
271 | 50 лога, поэтому понадобится лишь задать уровень <literal>debug</literal>. |
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51 </para> |
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52 |
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53 <para> |
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54 Обратите внимание, что переопределение лога без одновременного указания |
271 | 55 уровня <literal>debug</literal> отключит отладочный лог. |
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56 В примере ниже, переопределение лога на уровне |
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57 <link doc="http/ngx_http_core_module.xml" id="server"/> |
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58 отключает отладочный лог для этого сервера: |
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59 <programlisting> |
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60 error_log /path/to/log debug; |
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61 |
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62 http { |
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63 server { |
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64 error_log /path/to/log; |
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65 ... |
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66 </programlisting> |
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67 Чтобы избежать этого, следует либо закомментировать строку, переопределяющую |
271 | 68 лог, либо добавить определение уровня <literal>debug</literal>: |
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69 <programlisting> |
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70 error_log /path/to/log debug; |
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71 |
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72 http { |
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73 server { |
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74 error_log /path/to/log debug; |
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75 ... |
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76 </programlisting> |
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77 </para> |
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78 |
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79 </section> |
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80 |
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81 |
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82 <section id="clients" name="Отладочный лог для определённых клиентов"> |
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83 |
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84 <para> |
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85 Можно включить отладочный лог только для |
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86 <link doc="ngx_core_module.xml" id="debug_connection">определённых |
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87 клиентских адресов</link>: |
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88 |
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89 <programlisting> |
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90 error_log /path/to/log; |
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91 |
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92 events { |
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93 debug_connection 192.168.1.1; |
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94 debug_connection 192.168.10.0/24; |
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95 } |
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96 </programlisting> |
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97 </para> |
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98 |
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99 </section> |
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100 |
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101 |
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102 <section id="memory" name="Запись в кольцевой буфер в памяти"> |
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103 |
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104 <para> |
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105 Отладочный лог можно записывать в кольцевой буфер в памяти: |
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106 <programlisting> |
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107 error_log memory:32m debug; |
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108 </programlisting> |
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109 Запись в буфер в памяти на уровне <literal>debug</literal> |
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110 не оказывает существенного влияния на производительность |
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111 даже при высоких нагрузках. |
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112 В этом случае лог может быть извлечён при помощи |
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113 <command>gdb</command>-скрипта, подобного следующему: |
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114 <example> |
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115 set $log = ngx_cycle->log |
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116 |
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117 while $log->writer != ngx_log_memory_writer |
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118 set $log = $log->next |
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119 end |
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120 |
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Fixed the gdb script for dumping in-memory debug log.
Valentin Bartenev <vbart@nginx.com>
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121 set $buf = (ngx_log_memory_buf_t *) $log->wdata |
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Fixed the gdb script for dumping in-memory debug log.
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122 dump binary memory debug_log.txt $buf->start $buf->end |
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Documented cyclic memory buffer support for error_log.
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123 </example> |
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124 </para> |
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125 |
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126 </section> |
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127 |
214
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Translated the "Debugging Log" article into Russian.
Ruslan Ermilov <ru@nginx.com>
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128 </article> |