{"id":419,"date":"2015-04-03T23:26:24","date_gmt":"2015-04-03T23:26:24","guid":{"rendered":"7eacb532570ff6858afd2723755ff790"},"modified":"2015-04-03T23:26:24","modified_gmt":"2015-04-03T23:26:24","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/419","title":{"rendered":"MySql ibdata1\u6587\u4ef6"},"content":{"rendered":"

MySql innodb\u5982\u679c\u662f\u5171\u4eab\u8868\u7a7a\u95f4\uff0cibdata1\u6587\u4ef6\u8d8a\u6765\u8d8a\u5927\uff0c\u8fbe\u5230\u4e8630\u591a\u4e2aG\uff0c\u5bf9\u4e00\u4e9b\u6ca1\u7528\u7684\u8868\u8fdb\u884c\u6e05\u7a7a\uff1a<\/span>

\ntruncate table xxx;<\/span>

\n\u7136\u540eoptimize table xxx; \u6ca1\u6709\u6548\u679c<\/span>

\n\u56e0\u4e3a\u5bf9\u5171\u4eab\u8868\u7a7a\u95f4\u4e0d\u8d77\u4f5c\u7528\u3002<\/span>

\nmysql ibdata1\u5b58\u653e\u6570\u636e\uff0c\u7d22\u5f15\u7b49\uff0c\u662fMYSQL\u7684\u6700\u4e3b\u8981\u7684\u6570\u636e\u3002<\/span>

\n\u5982\u679c\u4e0d\u628a\u6570\u636e\u5206\u5f00\u5b58\u653e\u7684\u8bdd\uff0c\u8fd9\u4e2a\u6587\u4ef6\u7684\u5927\u5c0f\u5f88\u5bb9\u6613\u5c31\u4e0a\u4e86G\uff0c\u751a\u81f3\u51e0\u5341G\u3002\u5bf9\u4e8e\u67d0\u4e9b\u5e94\u7528\u6765\u8bf4\uff0c\u5e76\u4e0d\u662f\u592a\u5408\u9002\u3002\u56e0\u6b64\u8981\u628a\u6b64\u6587\u4ef6\u7f29\u5c0f\u3002<\/span>

\n\u65e0\u6cd5\u81ea\u52a8\u6536\u7f29\uff0c\u5fc5\u987b\u6570\u636e\u5bfc\u51fa\uff0c\u5220\u9664ibdata1\uff0c\u7136\u540e\u6570\u636e\u5bfc\u5165\uff0c\u6bd4\u8f83\u9ebb\u70e6\uff0c\u56e0\u6b64\u9700\u8981\u6539\u4e3a\u6bcf\u4e2a\u8868\u5355\u72ec\u7684\u6587\u4ef6\u3002<\/span>

\n\u89e3\u51b3\u65b9\u6cd5\uff1a\u6570\u636e\u6587\u4ef6\u5355\u72ec\u5b58\u653e(\u5171\u4eab\u8868\u7a7a\u95f4\u5982\u4f55\u6539\u4e3a\u6bcf\u4e2a\u8868\u72ec\u7acb\u7684\u8868\u7a7a\u95f4\u6587\u4ef6)\u3002<\/span>

\n\u6b65\u9aa4\u5982\u4e0b\uff1a<\/span>

\n <\/span>

\n1\uff09\u5907\u4efd\u6570\u636e\u5e93<\/strong>

\n\u5907\u4efd\u5168\u90e8\u6570\u636e\u5e93\uff0c\u6267\u884c\u547d\u4ee4<\/span>

\n#mysqldump -q -uroot -ppassword --add-drop-table --all-databases >\/home\/backup\/all.sql<\/span>

\n\u505a\u5b8c\u6b64\u6b65\u540e\uff0c\u505c\u6b62\u6570\u636e\u5e93\u670d\u52a1\u3002<\/span>

\n#service mysqld stop<\/span>

\n <\/span>

\n2\uff09\u627e\u5230my.ini\u6216my.cnf\u6587\u4ef6<\/strong>

\nlinux\u4e0b\u6267\u884c <\/span>

\n# \/usr\/libexec\/mysqld --verbose --help | grep -A 1 'Default options'<\/span>

\nDefault options are read from the following files in the given order:<\/span>

\n\/etc\/mysql\/my.cnf \/etc\/my.cnf ~\/.my.cnf <\/span>

\nwindows\u73af\u5883\u4e0b\u53ef\u4ee5\uff1a<\/span>

\nmysqld --verbose --help > mysqlhelp.txt<\/span>

\nnotepad mysqlhelp.txt<\/span>

\n\u5728\u91cc\u9762\u67e5\u627eDefault options\uff0c\u53ef\u4ee5\u770b\u5230\u67e5\u627emy.ini\u7684\u987a\u5e8f\uff0c\u4ee5\u627e\u5230\u771f\u5b9e\u76ee\u5f55<\/span>

\n <\/span>

\n3\uff09\u4fee\u6539mysql\u914d\u7f6e\u6587\u4ef6<\/strong>

\n\u6253\u5f00my.ini\u6216my.cnf\u6587\u4ef6<\/span>

\n[mysqld]\u4e0b\u589e\u52a0\u4e0b\u9762\u914d\u7f6e<\/span>

\ninnodb_file_per_table=1<\/span>

\n\u9a8c\u8bc1\u914d\u7f6e\u662f\u5426\u751f\u6548\uff0c\u53ef\u4ee5\u91cd\u542fmysql\u540e,\u6267\u884c<\/span>

\n#service mysqld restart<\/span>

\n#mysql -uroot -ppassword<\/span>

\nmysql> show variables like '%per_table%';<\/span>

\n+-----------------------+-------+<\/span>

\n| Variable_name         | Value |<\/span>

\n+-----------------------+-------+<\/span>

\n| innodb_file_per_table | ON    |<\/span>

\n+-----------------------+-------+<\/span>

\n1 row in set (0.00 sec)<\/span>

\n

\n

\nmysql> <\/span>

\n

\n\u770b\u770binnodb_file_per_table\u53d8\u91cf\u662f\u5426\u4e3aON<\/span>

\n <\/span>

\n4\uff09\u5220\u9664\u539f\u6570\u636e\u6587\u4ef6<\/strong>

\n\u5220\u9664\u539f\u6765\u7684ibdata1\u6587\u4ef6\u53ca\u65e5\u5fd7\u6587\u4ef6ib_logfile*\uff0c\u5220\u9664\/var\/lib\/mysql\u76ee\u5f55\u4e0b\u7684\u5e94\u7528\u6570\u636e\u5e93\u6587\u4ef6\u5939(mysql\u6587\u4ef6\u5939\u4e0d\u8981\u5220)<\/span>

\n <\/span>

\n5\uff09\u8fd8\u539f\u6570\u636e\u5e93<\/strong>

\n\u542f\u52a8\u6570\u636e\u5e93\u670d\u52a1<\/span>

\n\u4ece\u547d\u4ee4\u884c\u8fdb\u5165MySQL Server<\/span>

\n\u8fd8\u539f\u5168\u90e8\u6570\u636e\u5e93\uff0c\u6267\u884c\u547d\u4ee4<\/span>

\n#service mysqld start<\/span>

\n#mysql -uroot -pocs < \/home\/backup\/all.sql <\/span>

\n

\n

\n\u7ecf\u8fc7\u4ee5\u4e0a\u51e0\u6b65\u540e\uff0c\u53ef\u4ee5\u770b\u5230\u65b0\u7684ibdata1\u6587\u4ef6\u5c31\u53ea\u6709\u51e0\u5341M\u4e86\uff0c\u6570\u636e\u53ca\u7d22\u5f15\u90fd\u53d8\u6210\u4e86\u9488\u5bf9\u5355\u4e2a\u8868\u7684\u5c0fibd\u6587\u4ef6\u4e86\uff0c\u5b83\u4eec\u5728\u76f8\u5e94\u6570\u636e\u5e93\u7684\u6587\u4ef6\u5939\u4e0b\u9762\u3002<\/span>

\n

\n

\n# ll<\/span>

\ntotal 295028<\/span>

\ndrwx------  2 mysql mysql     36864 Apr 22 14:16 glpi<\/span>

\ndrwx------  2 mysql mysql     36864 Feb 15 13:45 glpi-1<\/span>

\n-rw-rw----  1 mysql mysql  10485760 Apr 22 14:27 ibdata1<\/span>

\n-rw-rw----. 1 mysql mysql 270532608 Apr 22 14:14 ibdata1-1<\/span>

\n-rw-rw----  1 mysql mysql   5242880 Apr 22 14:27 ib_logfile0<\/span>

\n-rw-rw----. 1 mysql mysql   5242880 Apr 22 14:14 ib_logfile0_bak<\/span>

\n-rw-rw----  1 mysql mysql   5242880 Apr 22 14:28 ib_logfile1<\/span>

\n-rw-rw----. 1 mysql mysql   5242880 Apr 21 22:50 ib_logfile1_bak<\/span>

\ndrwx------  2 mysql mysql      4096 Apr 22 14:16 mrbs<\/span>

\ndrwx------  2 mysql mysql      4096 Apr 14 12:05 mrbs-1<\/span>

\ndrwx------. 2 mysql mysql      4096 Apr 22 14:16 mysql<\/span>

\nsrwxrwxrwx  1 mysql mysql         0 Apr 22 14:16 mysql.sock<\/span>

\ndrwx------  2 mysql mysql     12288 Apr 22 14:16 ocsweb<\/span>

\ndrwx------  2 mysql mysql     12288 Nov 16  2011 ocsweb-1<\/span>

\n

\n

\n# ll mrbs<\/span>

\ntotal 808<\/span>

\n-rw-rw---- 1 mysql mysql     61 Apr 22 14:16 db.opt<\/span>

\n-rw-rw---- 1 mysql mysql  10492 Apr 22 14:16 mrbs_area.frm<\/span>

\n-rw-rw---- 1 mysql mysql  98304 Apr 22 14:16 mrbs_area.ibd<\/span>

\n-rw-rw---- 1 mysql mysql   9264 Apr 22 14:16 mrbs_entry.frm<\/span>

\n-rw-rw---- 1 mysql mysql 131072 Apr 22 14:16 mrbs_entry.ibd<\/span>

\n-rw-rw---- 1 mysql mysql   9442 Apr 22 14:16 mrbs_repeat.frm<\/span>

\n-rw-rw---- 1 mysql mysql  98304 Apr 22 14:16 mrbs_repeat.ibd<\/span>

\n-rw-rw---- 1 mysql mysql   8888 Apr 22 14:16 mrbs_room.frm<\/span>

\n-rw-rw---- 1 mysql mysql 114688 Apr 22 14:16 mrbs_room.ibd<\/span>

\n-rw-rw---- 1 mysql mysql   8688 Apr 22 14:16 mrbs_users.frm<\/span>

\n-rw-rw---- 1 mysql mysql  98304 Apr 22 14:16 mrbs_users.ibd<\/span>

\n-rw-rw---- 1 mysql mysql   8658 Apr 22 14:16 mrbs_variables.frm<\/span>

\n-rw-rw---- 1 mysql mysql  98304 Apr 22 14:16 mrbs_variables.ibd<\/span>

\n-rw-rw---- 1 mysql mysql   8738 Apr 22 14:16 mrbs_zoneinfo.frm<\/span>

\n-rw-rw---- 1 mysql mysql  98304 Apr 22 14:16 mrbs_zoneinfo.ibd<\/span>

\n

\n

\n# ll mrbs-1<\/span>

\ntotal 88<\/span>

\n-rw-rw---- 1 mysql mysql    61 Apr 14 12:05 db.opt<\/span>

\n-rw-rw---- 1 mysql mysql 10492 Apr 14 12:05 mrbs_area.frm<\/span>

\n-rw-rw---- 1 mysql mysql  9264 Apr 14 12:05 mrbs_entry.frm<\/span>

\n-rw-rw---- 1 mysql mysql  9442 Apr 14 12:05 mrbs_repeat.frm<\/span>

\n-rw-rw---- 1 mysql mysql  8888 Apr 14 12:05 mrbs_room.frm<\/span>

\n-rw-rw---- 1 mysql mysql  8688 Apr 14 12:05 mrbs_users.frm<\/span>

\n-rw-rw---- 1 mysql mysql  8658 Apr 14 12:05 mrbs_variables.frm<\/span>

\n-rw-rw---- 1 mysql mysql  8738 Apr 14 12:05 mrbs_zoneinfo.frm<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

MySql innodb\u5982\u679c\u662f\u5171\u4eab\u8868\u7a7a\u95f4\uff0cibdata1\u6587\u4ef6\u8d8a\u6765\u8d8a\u5927\uff0c\u8fbe\u5230\u4e8630\u591a\u4e2aG\uff0c\u5bf9\u4e00\u4e9b\u6ca1\u7528\u7684\u8868\u8fdb\u884c\u6e05\u7a7a\uff1a<\/span>
truncate table xxx;<\/span>
\u7136\u540eoptimize table xxx; \u6ca1\u6709\u6548\u679c<\/span>
\u56e0\u4e3a\u5bf9\u5171\u4eab\u8868\u7a7a\u95f4\u4e0d\u8d77\u4f5c\u7528\u3002<\/span>
mysql ibdata1\u5b58\u653e\u6570\u636e\uff0c\u7d22\u5f15\u7b49\uff0c\u662fMYSQL\u7684\u6700\u4e3b\u8981\u7684\u6570\u636e\u3002<\/span>
\u5982\u679c\u4e0d\u628a\u6570\u636e\u5206\u5f00\u5b58\u653e\u7684\u8bdd\uff0c\u8fd9\u4e2a\u6587\u4ef6\u7684\u5927\u5c0f\u5f88\u5bb9\u6613\u5c31\u4e0a\u4e86G\uff0c\u751a\u81f3\u51e0\u5341G\u3002\u5bf9\u4e8e\u67d0\u4e9b\u5e94\u7528\u6765\u8bf4\uff0c\u5e76\u4e0d\u662f\u592a\u5408\u9002\u3002\u56e0\u6b64\u8981\u628a\u6b64\u6587\u4ef6\u7f29\u5c0f\u3002<\/span>
\u65e0\u6cd5\u81ea\u52a8\u6536\u7f29\uff0c\u5fc5\u987b\u6570\u636e\u5bfc\u51fa\uff0c\u5220\u9664ibdata1\uff0c\u7136\u540e\u6570\u636e\u5bfc\u5165\uff0c\u6bd4\u8f83\u9ebb\u70e6\uff0c\u56e0\u6b64\u9700\u8981\u6539\u4e3a\u6bcf\u4e2a\u8868\u5355\u72ec\u7684\u6587\u4ef6\u3002<\/span>
\u89e3\u51b3\u65b9\u6cd5\uff1a\u6570\u636e\u6587\u4ef6\u5355\u72ec\u5b58\u653e(\u5171\u4eab\u8868\u7a7a\u95f4\u5982\u4f55\u6539\u4e3a\u6bcf\u4e2a\u8868\u72ec\u7acb\u7684\u8868\u7a7a\u95f4\u6587\u4ef6)\u3002<\/span>
\u6b65\u9aa4\u5982...<\/span> \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[2],"class_list":["post-419","post","type-post","status-publish","format-standard","hentry","category-db","tag-MySQL"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/419","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=419"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/419\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}