/**
* As above, except these servers aren't purged on page changes; use to set a
- * list of trusted proxies, etc.
+ * list of trusted proxies, etc. Supports both individual IP addresses and
+ * CIDR blocks.
*/
$wgSquidServersNoPurge = array();
$wgDebugDumpSql = false;
/**
- * Set to an array of log group keys to filenames.
+ * Map of string log group names to log destinations.
+ *
* If set, wfDebugLog() output for that group will go to that file instead
* of the regular $wgDebugLogFile. Useful for enabling selective logging
* in production.
+ *
+ * Log destinations may be string values specifying a filename or URI, or they
+ * may be filename or an associative array mapping 'destination' to the desired
+ * filename. The associative array may also contain a 'sample' key with an
+ * integer value, specifying a sampling factor.
+ *
+ * @par Example:
+ * @code
+ * $wgDebugLogGroups['redis'] = '/var/log/mediawiki/redis.log';
+ * @endcode
+ *
+ * @par Advanced example:
+ * @code
+ * $wgDebugLogGroups['memcached'] = (
+ * 'destination' => '/var/log/mediawiki/memcached.log',
+ * 'sample' => 1000, // log 1 message out of every 1,000.
+ * );
+ * @endcode
*/
$wgDebugLogGroups = array();