{"id":5696,"date":"2012-10-18T18:55:29","date_gmt":"2012-10-18T16:55:29","guid":{"rendered":"http:\/\/code.openark.org\/blog\/?p=5696"},"modified":"2012-10-18T18:55:29","modified_gmt":"2012-10-18T16:55:29","slug":"innodb-ddl-kudos-to-quick-responders-on-bugs-mysql-com","status":"publish","type":"post","link":"https:\/\/code.openark.org\/blog\/mysql\/innodb-ddl-kudos-to-quick-responders-on-bugs-mysql-com","title":{"rendered":"InnoDB DDL: kudos to quick responders on bugs.mysql.com"},"content":{"rendered":"<p>Continuing my <a href=\"http:\/\/code.openark.org\/blog\/mysql\/experimenting-with-5-6-innodb-online-ddl-bugs-included\">experiments with 5.6 InnoDB online DDL<\/a>, a bug which I&#8217;ve opened, and another which I commented on were quickly answered and explained by the Oracle\/MySQL team.<\/p>\n<p>On both accounts I&#8217;m happy to acknowledge the issue is resolved; in both cases I failed to produce a real bug scenario. Good lesson. <em>Kudos for quick and informative responses!<\/em><\/p>\n<p>What&#8217;s left of my experiment, then? Still a lot to check.<\/p>\n<p>I am mainly still confused with which operations exactly can use <strong>LOCK=NONE<\/strong> (allowing for updated to table while <strong>ALTER<\/strong>ing). So far I am only able to produce <strong>ALTER<\/strong>s with <strong>LOCK=SHARED<\/strong>, meaning table is readable, but cannot be updated.<\/p>\n<p>I will want to test speeds. I&#8217;ve so far been content with slow response times for queries over altered tables. How well will that endure under heavy load?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Continuing my experiments with 5.6 InnoDB online DDL, a bug which I&#8217;ve opened, and another which I commented on were quickly answered and explained by the Oracle\/MySQL team. On both accounts I&#8217;m happy to acknowledge the issue is resolved; in both cases I failed to produce a real bug scenario. Good lesson. Kudos for quick [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"enabled":false},"version":2}},"categories":[5],"tags":[14,89],"class_list":["post-5696","post","type-post","status-publish","format-standard","hentry","category-mysql","tag-innodb","tag-new-features"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2bZZp-1tS","_links":{"self":[{"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/posts\/5696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/comments?post=5696"}],"version-history":[{"count":3,"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/posts\/5696\/revisions"}],"predecessor-version":[{"id":5699,"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/posts\/5696\/revisions\/5699"}],"wp:attachment":[{"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/media?parent=5696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/categories?post=5696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/code.openark.org\/blog\/wp-json\/wp\/v2\/tags?post=5696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}