if ( is_null( self::$mMinSearchLength ) ) {
$sql = "SHOW GLOBAL VARIABLES LIKE 'ft\\_min\\_word\\_len'";
- $dbr = wfGetDB( DB_SLAVE );
+ $dbr = wfGetDB( DB_REPLICA );
$result = $dbr->query( $sql, __METHOD__ );
$row = $result->fetchObject();
$result->free();