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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@327994 c90b9560-bf6c-de11-be94-00142212c4b1
296 lines
9.1 KiB
XML
296 lines
9.1 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<phpdoc:classref xml:id="class.mongolog" xmlns:phpdoc="http://php.net/ns/phpdoc" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
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<title>The MongoLog class</title>
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<titleabbrev>MongoLog</titleabbrev>
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<partintro>
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<!-- {{{ MongoLog intro -->
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<section xml:id="mongolog.intro">
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&reftitle.intro;
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<para>
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Logging can be used to get detailed information about what the driver is
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doing. The logging mechanism as used by MongoLog emits all log messages
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as a PHP notice. Depending on the server interface that you use,
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that means that they will either be sent to strerr (with PHP-CLI), or
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otherwise to the web server's error log. In order for log messages to
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be output by PHP their level (E_NOTICE) does need to be configured to
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be shown. That means the E_NOTICE bit needs to be part of PHP's
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error_reporting level and that display_errors is set to 1.
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</para>
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<para>
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Logging is turned off, by default. This class allows you to turn on
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specific levels of logging for specific parts of the driver. Some examples:
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</para>
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<programlisting role="php">
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<![CDATA[
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<?php
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// print every log message possible
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MongoLog::setLevel(MongoLog::ALL); // all log levels
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MongoLog::setModule(MongoLog::ALL); // all parts of the driver
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// print significant events about replica set failover
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MongoLog::setLevel(MongoLog::INFO);
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MongoLog::setModule(MongoLog::RS);
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// print info- and server tuning-level events from replica sets and connection pooling
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MongoLog::setLevel(MongoLog::INFO|MongoLog::FINE);
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MongoLog::setModule(MongoLog::RS|MongoLog::POOL);
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?>
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]]>
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</programlisting>
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</section>
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<!-- }}} -->
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<section xml:id="mongolog.synopsis">
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&reftitle.classsynopsis;
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<!-- {{{ Synopsis -->
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<classsynopsis>
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<ooclass><classname>MongoLog</classname></ooclass>
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<!-- {{{ Class synopsis -->
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<classsynopsisinfo>
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<ooclass>
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<classname>MongoLog</classname>
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</ooclass>
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</classsynopsisinfo>
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<!-- }}} -->
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<classsynopsisinfo role="comment">&Constants;</classsynopsisinfo>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.none">MongoLog::NONE</varname>
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<initializer>0</initializer>
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</fieldsynopsis>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.all">MongoLog::ALL</varname>
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<initializer>31</initializer>
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</fieldsynopsis>
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<classsynopsisinfo role="levels">level constants</classsynopsisinfo>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.warning">MongoLog::WARNING</varname>
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<initializer>1</initializer>
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</fieldsynopsis>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.info">MongoLog::INFO</varname>
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<initializer>2</initializer>
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</fieldsynopsis>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.fine">MongoLog::FINE</varname>
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<initializer>4</initializer>
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</fieldsynopsis>
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<classsynopsisinfo role="levels">module constants</classsynopsisinfo>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.rs">MongoLog::RS</varname>
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<initializer>1</initializer>
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</fieldsynopsis>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.pool">MongoLog::POOL</varname>
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<initializer>2</initializer>
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</fieldsynopsis>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.io">MongoLog::IO</varname>
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<initializer>4</initializer>
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</fieldsynopsis>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.server">MongoLog::SERVER</varname>
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<initializer>8</initializer>
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</fieldsynopsis>
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<fieldsynopsis>
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<modifier>const</modifier>
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<type>int</type>
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<varname linkend="mongolog.constants.parse">MongoLog::PARSE</varname>
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<initializer>16</initializer>
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</fieldsynopsis>
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<classsynopsisinfo role="comment">Fields</classsynopsisinfo>
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<fieldsynopsis>
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<modifier>public</modifier>
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<modifier></modifier>
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<type>int</type>
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<varname>level</varname>
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</fieldsynopsis>
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<fieldsynopsis>
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<modifier>public</modifier>
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<type>int</type>
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<varname>module</varname>
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</fieldsynopsis>
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<classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
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<xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.mongolog')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[1])" />
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</classsynopsis>
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<!-- }}} -->
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</section>
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<section>
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&reftitle.constants;
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<section xml:id="mongolog.constants.types">
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<title>MongoLog Constants</title>
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<para>
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These constants can be used by both
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<function>MongoLog::setLevel</function> and
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<function>MongoLog::setModule</function>.
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</para>
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<variablelist>
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<varlistentry xml:id="mongolog.constants.none">
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<term><constant>MongoLog::NONE</constant></term>
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<listitem>
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<simpara>
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Constant for turning logging off.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="mongolog.constants.all">
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<term><constant>MongoLog::ALL</constant></term>
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<listitem>
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<simpara>
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Constant for logging everything.
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</simpara>
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</listitem>
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</varlistentry>
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</variablelist>
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</section>
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<section xml:id="mongolog.constants.level">
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<title>MongoLog Level Constants</title>
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<para>
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These constants can be used by <function>MongoLog::setLevel</function>.
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</para>
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<variablelist>
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<varlistentry xml:id="mongolog.constants.warning">
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<term><constant>MongoLog::WARNING</constant></term>
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<listitem>
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<simpara>
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This will print log messages about somewhat exceptional but
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not-quite-exception-worthy happenings.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="mongolog.constants.info">
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<term><constant>MongoLog::INFO</constant></term>
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<listitem>
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<simpara>
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Logs events that may be of interest to administrators, but are not
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particularly noteworthy.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="mongolog.constants.fine">
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<term><constant>MongoLog::FINE</constant></term>
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<listitem>
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<simpara>
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Logs most events that the driver performs. Depending on the module being
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logged, this can be extremely noisy and is primarily for debugging.
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</simpara>
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</listitem>
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</varlistentry>
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</variablelist>
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</section>
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<section xml:id="mongolog.constants.module">
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<title>MongoLog Module Constants</title>
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<para>
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These constants can be used by <function>MongoLog::setModule</function>.
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</para>
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<variablelist>
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<varlistentry xml:id="mongolog.constants.io">
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<term><constant>MongoLog::IO</constant></term>
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<listitem>
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<simpara>
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Logs traffic to/from the database. Unless your program is trivial, this
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will create an enormous number of log messages.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="mongolog.constants.parse">
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<term><constant>MongoLog::PARSE</constant></term>
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<listitem>
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<simpara>
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Log server string parsing.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="mongolog.constants.pool">
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<term><constant>MongoLog::POOL</constant></term>
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<listitem>
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<simpara>
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Log connection pool activity. Creating new connections, reusing
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connections, and closing connections.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="mongolog.constants.rs">
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<term><constant>MongoLog::RS</constant></term>
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<listitem>
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<simpara>
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Log replica set activity. Failovers, pinging, chosing secondaries to
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read from, etc.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="mongolog.constants.server">
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<term><constant>MongoLog::SERVER</constant></term>
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<listitem>
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<simpara>
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Log server status changes. Detecting primary, secondary and
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duplication detection.
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</simpara>
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</listitem>
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</varlistentry>
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</variablelist>
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</section>
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</section>
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</partintro>
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&reference.mongo.entities.mongolog;
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</phpdoc:classref>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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