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Adding a description for the use_microseconds parameter introduced in MonologBundle v2.11 #6583

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Adding a description for the use_microseconds parameter introduced in MonologBundle v2.11 #6583

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Adding a description for the use_microseconds parameter introduced in…
jorgelbg May 21, 2016
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Fixing some issues and adding a better explanation of the use_microse…
jorgelbg May 21, 2016
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61 changes: 61 additions & 0 deletions cookbook/logging/monolog.rst
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Expand Up @@ -289,6 +289,67 @@ option of your handler to ``rotating_file``:
),
));

How to Disable Microseconds Precision
-------------------------------------

.. versionadded:: 2.11
The ``use_microseconds`` option was introduced in MonologBundle 2.11.

Setting the parameter ``use_microseconds`` to ``false`` forces the logger to reduce
the precision in the ``datetime`` field of the log messages from microsecond to second,
avoiding a call to the ``microtime(true)`` function and the subsequent parsing.
Disabling the use of microseconds can provide a small performance gain speeding up the
log generation. This is recommended for systems that generate a large number of log events.

.. configuration-block::

.. code-block:: yaml

# app/config/config.yml
monolog:
use_microseconds: false
handlers:
applog:
type: stream
path: /var/log/symfony.log
level: error

.. code-block:: xml

<!-- app/config/config.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<container xmlns="http://symfony.com/schema/dic/services"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:monolog="http://symfony.com/schema/dic/monolog"
xsi:schemaLocation="http://symfony.com/schema/dic/services
http://symfony.com/schema/dic/services/services-1.0.xsd
http://symfony.com/schema/dic/monolog
http://symfony.com/schema/dic/monolog/monolog-1.0.xsd">

<monolog:config use_microseconds="false">
<monolog:handler
name="applog"
type="stream"
path="/var/log/symfony.log"
level="error"
/>
</monolog:config>
</container>

.. code-block:: php

// app/config/config.php
$container->loadFromExtension('monolog', array(
'use_microseconds' => false,
'handlers' => array(
'applog' => array(
'type' => 'stream',
'path' => '/var/log/symfony.log',
'level' => 'error',
),
),
));

Adding some extra Data in the Log Messages
------------------------------------------

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