ext3
The ext3 or third extended filesystem is a journaled file system that is commonly used by the Linux kernel. It is the default file system for many popular Linux distributions. Stephen Tweedie first revealed that he was working on extending ext2 in Journaling the Linux ext2fs Filesystem in a 1998 paper and later in a February 1999 kernel mailing list posting, and the filesystem was merged with the mainline Linux kernel in November 2001 from 2.4.15 onward. Its main advantage over ext2 is journaling which improves reliability and eliminates the need to check the file system after an unclean shutdown. Its successor is ext4.[1]
Components
Extension:DynamicPageList3 (DPL3), version 3.6.4: Error: Error 1054: Unknown column 'cl1.cl_to' in 'on clause' Function: MediaWiki\Extension\DynamicPageList3\Query::buildAndSelect - ext3 Query: SET STATEMENT max_statement_time=10 FOR SELECT DISTINCT IFNULL(cl1.cl_sortkey, REPLACE(CONCAT(CASE `wp_page`.page_namespace WHEN 1 THEN 'Talk:' WHEN 2 THEN 'User:' WHEN 3 THEN 'User_talk:' WHEN 4 THEN 'RaySoft:' WHEN 5 THEN 'RaySoft_talk:' WHEN 6 THEN 'File:' WHEN 7 THEN 'File_talk:' WHEN 8 THEN 'MediaWiki:' WHEN 9 THEN 'MediaWiki_talk:' WHEN 10 THEN 'Template:' WHEN 11 THEN 'Template_talk:' WHEN 12 THEN 'Help:' WHEN 13 THEN 'Help_talk:' WHEN 14 THEN 'Category:' WHEN 15 THEN 'Category_talk:' END, `wp_page`.page_title), '_', ' ')) AS `sortkey`,`wp_page`.page_namespace AS `page_namespace`,`wp_page`.page_id AS `page_id`,`wp_page`.page_title AS `page_title` FROM `wp_page` `wp_page` JOIN `wp_categorylinks` `cl1` ON ((`wp_page`.page_id = cl1.cl_from AND cl1.cl_to = 'ext3')) JOIN `wp_categorylinks` `cl2` ON ((`wp_page`.page_id = cl2.cl_from AND cl2.cl_to = 'Component')) WHERE `wp_page`.page_is_redirect = 0 AND `wp_page`.page_namespace = 0 ORDER BY sortkey ASC LIMIT 500