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This page is a translated version of the page Manual:$wgDebugLogGroups and the translation is 52% complete.
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调试/日志记录: $wgDebugLogGroups
将某些组的wfDebugLog()输出直接输出到$wgDebugLogFile 以外的文件。
引进版本:1.5.0 (r10598)


设置一个数组,日志组为键文件名为值。 如果设置,该日志组的wfDebugLog()输出将转到设置的文件里而不是常规的$wgDebugLogFile 。 对生产环境下选择性日志非常有用。

If a group is configured in $wgDebugLogGroups, then all debug messages with the according group key will be logged to that file, also if $wgDebugLogFile is not set! With other words: If a group key is configured in $wgDebugLogGroups, messages will be written, even if an empty value of $wgDebugLogFile generally disables debugging.


  • 设置为false将完全禁用日志输出,包括$wgDebugLogFile。
  • 设置字符串类型的值将认定为文件名或者URL。
  • 设置一个带键的关联数组:
    • 'destination' 所需的文件名或URI。
    • 'sample' an integer value, specifying a sampling factor (optional)
    • 'level' A \Psr\Log\LogLevel constant, indicating the minimum level log (optional, since 1.25)

When $wgMWLoggerDefaultSpi is set to a non-default value, $wgDebugLogGroups will probably be ignored, and the method of configuring log files will be determined by whatever logging system is invoked by $wgMWLoggerDefaultSpi.


This example logs debug messages of group "ConfirmEditExtension" to "debug-ext_confirmedit.log" and those of group "SpamRegex" to "debug-spam.log".

$wgDebugLogGroups = array(
	'ConfirmEditExtension'	=> $IP . '/../../home/debug-ext_confirmedit.log',
	'SpamRegex'		=> $IP . '/../../home/debug-spam.log',


$wgDebugLogGroups['redis'] = '/var/log/mediawiki/redis.log';

Advanced example:

 $wgDebugLogGroups['memcached'] = array(
     'destination' => '/var/log/mediawiki/memcached.log',
     'sample' => 1000,  // log 1 message out of every 1,000.
     'level' => \Psr\Log\LogLevel::WARNING,
 $wgDebugLogGroups['redis'] = array(
     'destination' => '/var/log/mediawiki/redis.log',
     // Level can also be the literal string value of any Psr\Log\LogLevel constant
     'level' => 'info',

Some common debug log groups

  • exception, error, fatal - errors
  • deprecated - deprecation warnings
  • objectcache, caches, memcached/SQLBagOStuff - cache
  • DBPerformance, DBReplication, DBConnection - database
  • DBQuery - all DB queries
  • cookie - response cookies
  • exec - shell commands
  • session - SessionManager
  • authentication, login - AuthManager
  • ratelimit, throttler - hitting rate limits ($wgRateLimits and other)
  • resourceloader, ResourceLoaderImage - ResourceLoader
  • http, HttpError - HTTP requests to external services (via the Http/MwHttpRequest classes)
  • api - API
  • thumbnail, fileupload, fileconcatenate - image-related
  • runJobs - job queue
  • parser, ParserCache - parser
  • slow-parse - warnings about pages that take long to parse