{"id":16386,"date":"2024-12-01T16:42:57","date_gmt":"2024-12-01T08:42:57","guid":{"rendered":"https:\/\/www.orczhou.com\/?p=16386"},"modified":"2024-12-06T16:45:35","modified_gmt":"2024-12-06T08:45:35","slug":"enable-innodb-redo-log-make-mysql-load-faster","status":"publish","type":"post","link":"https:\/\/www.orczhou.com\/index.php\/2024\/12\/enable-innodb-redo-log-make-mysql-load-faster\/","title":{"rendered":"\u5173\u95ed InnoDB \u7684 redo log"},"content":{"rendered":"\n<p>\u5728 MySQL \u5b9e\u4f8b\u6062\u590d\u65f6\uff08\u5c24\u5176\u662f\u903b\u8f91\u5907\u4efd\u7684\u6062\u590d\uff09\uff0c\u4e3a\u4e86\u83b7\u5f97\u66f4\u5feb\u7684\u6062\u590d\u901f\u5ea6\uff0c\u901a\u5e38\u4f1a\u5173\u95ed\u4e8c\u8fdb\u5236\u65e5\u5fd7\uff08Binary Log\uff09\uff0c\u5e76\u4e14\u5c06 InnoDB \u7684\u65e5\u5fd7\u6301\u4e45\u5316\u7ea7\u522b\u8c03\u6574\u5230\u6700\u4f4e\u3002\u4ece MySQL 8.0.21\u8d77<sup>[1]<\/sup>\uff0c\u66f4\u8fdb\u4e00\u6b65\u7684\uff0c\u53ef\u4ee5\u5f7b\u5e95\u7684\u5173\u95ed InnoDB redo \u4ece\u800c\u83b7\u5f97\u66f4\u597d\u5bfc\u5165\u901f\u5ea6\u3002\u540e\u7eed\u7684 8.4 \/ 9.0 \/ 9.1 \u53ef\u4ee5\u4f7f\u7528\u8be5\u7279\u6027\u3002<\/p>\n\n\n\n<p>\u5728\u672c\u6587\u7684\u6d4b\u8bd5\u4e2d\uff0c\u53ef\u4ee5\u770b\u5230\u5173\u95ed InnoDB redo log <strong><em>\u5bfc\u5165\u901f\u5ea6\u53ef\u4ee5\u63d0\u5347\u7ea6 26%<\/em><\/strong>\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u4f7f\u7528\u573a\u666f<\/h4>\n\n\n\n<p>\u6700\u4e3a\u5e38\u89c1\u7684\u5c31\u662f\u5728\u8fdb\u884c\u5927\u91cf\u6570\u636e\u5bfc\u5165\u65f6\uff0c\u5e0c\u671b\u80fd\u591f\u52a0\u901f\u6570\u636e\u5bfc\u5165\u7684\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7ba1\u7406\u547d\u4ee4<\/h4>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u7684\u547d\u4ee4\u5173\u95ed\/\u6216\u6253\u5f00 InnoDB redo log\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\"> ALTER INSTANCE {ENABLE|DISABLE} INNODB REDO_LOG<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u5173\u95ed InnoDB redo log<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">mysql&gt;  ALTER INSTANCE DISABLE INNODB REDO_LOG;\nQuery OK, 0 rows affected (0.00 sec)\n\nmysql&gt; SHOW STATUS LIKE '%Innodb_redo_log_enabled%';\n+-------------------------+-------+\n| Variable_name           | Value |\n+-------------------------+-------+\n| Innodb_redo_log_enabled | OFF   |\n+-------------------------+-------+\n1 row in set (0.02 sec)\n\n<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u6253\u5f00 InnoDB redo log<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">mysql&gt; ALTER INSTANCE ENABLE INNODB REDO_LOG;\nQuery OK, 0 rows affected (1.02 sec)\n\nmysql&gt; SHOW STATUS LIKE '%Innodb_redo_log_enabled%';\n+-------------------------+-------+\n| Variable_name           | Value |\n+-------------------------+-------+\n| Innodb_redo_log_enabled | ON    |\n+-------------------------+-------+\n1 row in set (0.00 sec)<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u6267\u884c\u8be5\u547d\u4ee4\u7684\u6743\u9650<\/h4>\n\n\n\n<p>\u56e0\u4e3a\u8be5\u547d\u4ee4\u5bf9\u6570\u636e\u5e93\u5f71\u54cd\u5de8\u5927\uff0c\u6240\u4ee5\u4e5f\u5f15\u5165\u72ec\u7acb\u7684\u6743\u9650 <code>INNODB_REDO_LOG_ENABLE<\/code>\u6765\u7ba1\u7406\u8be5\u547d\u4ee4\u7684\u6267\u884c\u6743\u9650\u3002\u5177\u4f53\u53c2\u8003\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">mysql&gt; GRANT INNODB_REDO_LOG_ENABLE ON *.* to 'data_load_admin';<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u6027\u80fd\u5bf9\u6bd4<\/h4>\n\n\n\n<p>\u8fd9\u91cc\u505a\u5e94\u8be5\u7b80\u5355\u7684\u6027\u80fd\u5bf9\u6bd4\uff0c\u770b\u770b\u5173\u95ed InnoDB Redo Log \u5bfc\u5165\u901f\u5ea6\u4f1a\u63d0\u5347\u591a\u5c11\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\"># mysql -uroot test -e \"show status like 'Innodb_redo_log_enabled'\"\n+-------------------------+-------+\n| Variable_name           | Value |\n+-------------------------+-------+\n| Innodb_redo_log_enabled | ON    |\n+-------------------------+-------+\n#  mysql -uroot test -e \"truncate table passenger\"\n# time mysql -uroot test &lt; passenger.1000.sql &gt; \/dev\/null\n\nreal\t0m3.109s\nuser\t0m0.017s\nsys\t0m0.013s\n# mysql -uroot test -e \"truncate table passenger\"\n# mysql -uroot test -e \"ALTER INSTANCE DISABLE INNODB REDO_LOG\"\n# time mysql -uroot test &lt; passenger.1000.sql &gt; \/dev\/null\n\nreal\t0m2.286s\nuser\t0m0.022s\nsys\t0m0.009s<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u521d\u6b65\u6d4b\u8bd5\u4e2d\uff0c\u53ef\u4ee5\u89c2\u5bdf\u5230\uff0c\u5728\u5173\u95ed InnoDB Redo \u4e4b\u540e\uff0c\u5230\u5982\u65f6\u95f4\u4ece 3.109s \u964d\u4f4e\u5230\u4e86 2.286s\uff0c\u5728\u8be5\u5bfc\u5165\u4e2d\uff0c\u8282\u7701\u65f6\u95f4\u7ea6 26%\u7684\u65f6\u95f4\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u53c2\u8003\u6587\u6863<\/h4>\n\n\n\n<ul class=\"wp-block-list is-style-no-disc\">\n<li class=\"has-x-small-font-size\">[1] <a href=\"https:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/innodb-redo-log.html\" target=\"_blank\" rel=\"noreferrer noopener\">Redo Log@MySQL Documentation<\/a> <\/li>\n\n\n\n<li class=\"has-x-small-font-size\">[2] <a href=\"https:\/\/dev.mysql.com\/doc\/refman\/8.4\/en\/alter-instance.html\">ALTER INSTANCE Statement<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 MySQL \u5b9e\u4f8b\u6062\u590d\u65f6\uff08\u5c24\u5176\u662f\u903b\u8f91\u5907\u4efd\u7684\u6062\u590d\uff09\uff0c\u4e3a\u4e86\u83b7\u5f97\u66f4\u5feb\u7684\u6062\u590d\u901f\u5ea6\uff0c\u901a\u5e38\u4f1a\u5173\u95ed\u4e8c\u8fdb\u5236\u65e5\u5fd7\uff08Binary Log\uff09\uff0c\u5e76\u4e14\u5c06 InnoDB \u7684\u65e5\u5fd7\u6301\u4e45\u5316\u7ea7\u522b\u8c03\u6574\u5230\u6700\u4f4e\u3002\u4ece MySQL 8.0.21\u8d77[1]\uff0c\u66f4\u8fdb\u4e00\u6b65\u7684\uff0c\u53ef\u4ee5\u5f7b\u5e95\u7684\u5173\u95ed InnoDB redo \u4ece\u800c\u83b7\u5f97\u66f4\u597d\u5bfc\u5165\u901f\u5ea6\u3002\u540e\u7eed\u7684 8.4 \/ 9.0 \/ 9.1 \u53ef\u4ee5\u4f7f\u7528\u8be5\u7279\u6027\u3002 \u5728\u672c\u6587\u7684\u6d4b\u8bd5\u4e2d\uff0c\u53ef\u4ee5\u770b\u5230\u5173\u95ed InnoDB redo log \u5bfc\u5165\u901f\u5ea6\u53ef\u4ee5\u63d0\u5347\u7ea6 26%\u3002 \u4f7f\u7528\u573a\u666f \u6700\u4e3a\u5e38\u89c1\u7684\u5c31\u662f\u5728\u8fdb\u884c\u5927\u91cf\u6570\u636e\u5bfc\u5165\u65f6\uff0c\u5e0c\u671b\u80fd\u591f\u52a0\u901f\u6570\u636e\u5bfc\u5165\u7684\u8fc7\u7a0b\u3002 \u7ba1\u7406\u547d\u4ee4 \u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u7684\u547d\u4ee4\u5173\u95ed\/\u6216\u6253\u5f00 InnoDB redo log\uff1a \u5173\u95ed InnoDB redo log \u6253\u5f00 InnoDB redo log \u6267\u884c\u8be5\u547d\u4ee4\u7684\u6743\u9650 \u56e0\u4e3a\u8be5\u547d\u4ee4\u5bf9\u6570\u636e\u5e93\u5f71\u54cd\u5de8\u5927\uff0c\u6240\u4ee5\u4e5f\u5f15\u5165\u72ec\u7acb\u7684\u6743\u9650 INNODB_REDO_LOG_ENABLE\u6765\u7ba1\u7406\u8be5\u547d\u4ee4\u7684\u6267\u884c\u6743\u9650\u3002\u5177\u4f53\u53c2\u8003\uff1a \u6027\u80fd\u5bf9\u6bd4 \u8fd9\u91cc\u505a\u5e94\u8be5\u7b80\u5355\u7684\u6027\u80fd\u5bf9\u6bd4\uff0c\u770b\u770b\u5173\u95ed InnoDB Redo Log \u5bfc\u5165\u901f\u5ea6\u4f1a\u63d0\u5347\u591a\u5c11\u3002 \u5728\u8fd9\u4e2a\u521d\u6b65\u6d4b\u8bd5\u4e2d\uff0c\u53ef\u4ee5\u89c2\u5bdf\u5230\uff0c\u5728\u5173\u95ed InnoDB Redo \u4e4b\u540e\uff0c\u5230\u5982\u65f6\u95f4\u4ece 3.109s \u964d\u4f4e\u5230\u4e86 2.286s\uff0c\u5728\u8be5\u5bfc\u5165\u4e2d\uff0c\u8282\u7701\u65f6\u95f4\u7ea6 26%\u7684\u65f6\u95f4\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","inline_featured_image":false,"_tocer_settings":[],"footnotes":""},"categories":[6,4],"tags":[],"class_list":["post-16386","post","type-post","status-publish","format-standard","hentry","category-mysql","category-code-detail"],"_links":{"self":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/16386","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/comments?post=16386"}],"version-history":[{"count":9,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/16386\/revisions"}],"predecessor-version":[{"id":16395,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/16386\/revisions\/16395"}],"wp:attachment":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/media?parent=16386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/categories?post=16386"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/tags?post=16386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}