Comments on: Why Is Joomla So Slow? http://www.itoctopus.com/why-is-joomla-so-slow Tue, 18 Jun 2013 22:17:19 -0500 http://wordpress.org/?v=2.8.5 hourly 1 By: 25 Joomla Important Tips | itoctopus http://www.itoctopus.com/why-is-joomla-so-slow/comment-page-1#comment-4740 25 Joomla Important Tips | itoctopus Wed, 01 Feb 2012 18:24:55 +0000 http://www.itoctopus.com/?p=812#comment-4740 [...] slow query log you’ll be able to determine which queries are slowing down your whole website. This comment states that the person had a query that was talking 30 minutes to be executed – we’re [...] [...] slow query log you’ll be able to determine which queries are slowing down your whole website. This comment states that the person had a query that was talking 30 minutes to be executed – we’re [...]

]]> By: Joomla Man http://www.itoctopus.com/why-is-joomla-so-slow/comment-page-1#comment-4697 Joomla Man Sun, 08 Jan 2012 22:34:42 +0000 http://www.itoctopus.com/?p=812#comment-4697 Our Joomla website was extremely slow, and we discovered that it was all due to this query in a modified Joomla Ninja Board extension: <code>SELECT COUNT(*) FROM `jos_ninjaboard_posts` AS `tbl` LEFT JOIN `jos_users` AS `user` ON (`user`.`id` = `tbl`.`created_user_id`) LEFT JOIN `jos_ninjaboard_people` AS `person` ON (`person`.`ninjaboard_person_id` = `tbl`.`created_user_id`) LEFT JOIN `jos_gu_users` AS `guser` ON (`guser`.`uid` = `tbl`.`created_user_id`) LEFT JOIN `jos_ninjaboard_topics` AS `topic` ON (`topic`.`ninjaboard_topic_id` = `tbl`.`ninjaboard_topic_id`) LEFT JOIN `jos_ninjaboard_posts` AS `first_post` ON (`first_post`.`ninjaboard_post_id` = `topic`.`first_post_id`) LEFT JOIN `jos_ninjaboard_forums` AS `forum` ON (`forum`.`ninjaboard_forum_id` = `topic`.`forum_id`) WHERE `forum`.`ninjaboard_forum_id` != 'NULL' AND `topic`.`enabled` = 1 AND `forum`.`enabled` = 1 AND `tbl`.`enabled` = 1 AND `forum`.`ninjaboard_forum_id` NOT IN ( 32, 31, 16, 9, 5, 27, 12, 3, 23, 24, 4, 2, 15, 13, 14, 30, 28 );</code> The above query was taking around half an hour to execute as it was examining over 100 million rows. Our Joomla website was extremely slow, and we discovered that it was all due to this query in a modified Joomla Ninja Board extension:

SELECT COUNT(*) FROM `jos_ninjaboard_posts` AS `tbl` LEFT JOIN `jos_users` AS `user` ON (`user`.`id` = `tbl`.`created_user_id`) LEFT JOIN `jos_ninjaboard_people` AS `person` ON (`person`.`ninjaboard_person_id` = `tbl`.`created_user_id`) LEFT JOIN `jos_gu_users` AS `guser` ON (`guser`.`uid` = `tbl`.`created_user_id`) LEFT JOIN `jos_ninjaboard_topics` AS `topic` ON (`topic`.`ninjaboard_topic_id` = `tbl`.`ninjaboard_topic_id`) LEFT JOIN `jos_ninjaboard_posts` AS `first_post` ON (`first_post`.`ninjaboard_post_id` = `topic`.`first_post_id`) LEFT JOIN `jos_ninjaboard_forums` AS `forum` ON (`forum`.`ninjaboard_forum_id` = `topic`.`forum_id`) WHERE `forum`.`ninjaboard_forum_id` != 'NULL' AND `topic`.`enabled` = 1 AND `forum`.`enabled` = 1 AND `tbl`.`enabled` = 1 AND `forum`.`ninjaboard_forum_id` NOT IN ( 32, 31, 16, 9, 5, 27, 12, 3, 23, 24, 4, 2, 15, 13, 14, 30, 28 );

The above query was taking around half an hour to execute as it was examining over 100 million rows.

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