— \u8868\u7ef4\u62a4\u7684\u5b9e\u65bd;
\n1.\u8868\u7ef4\u62a4\u64cd\u4f5c\u5bf9\u4e8e\u786e\u5b9a\u548c\u66f4\u6b63\u6570\u636e\u5e93\u95ee\u9898\u5341\u5206\u6709\u7528,\u5982\u4ee5\u4e0b\u95ee\u9898:
\n \u2013 \u7531\u4e8e\u670d\u52a1\u5668\u5d29\u6e83\u800c\u5bfc\u81f4\u8868\u635f\u574f;
\n \u2013 \u5bf9\u8868\u7684\u67e5\u8be2\u5904\u7406\u901f\u5ea6\u8f83\u6162;
\n2.\u53ef\u4f7f\u7528\u591a\u79cd\u5de5\u5177\u6267\u884c\u8868\u7ef4\u62a4:
\n \u2013 MySQL Workbench;
\n \u2013 MySQL Enterprise Monitor;
\n \u2013 SQL(DML)\u7ef4\u62a4\u8bed\u53e5;
\n \u2013 \u5b9e\u7528\u7a0b\u5e8f:
\n \u2014 mysqlcheck;
\n \u2014 myisamchk;
\n \u2013 \u670d\u52a1\u5668\u81ea\u52a8\u6062\u590d;<\/p>\n
— \u7528\u4e8e\u8868\u7ef4\u62a4\u64cd\u4f5c\u7684SQL;
\n1.\u6709\u591a\u4e2aSQL\u8bed\u53e5\u53ef\u7528\u4e8e\u6267\u884c\u8868\u7ef4\u62a4:
\n \u2013 ANALYZE TABLE:\u66f4\u65b0\u7d22\u5f15\u7edf\u8ba1\u4fe1\u606f;
\n \u2013 CHECK TABLE:\u5f7b\u5e95\u68c0\u67e5\u5b8c\u6574\u6027;
\n \u2013 CHECKSUM TABLE:\u5f7b\u5e95\u68c0\u67e5\u5b8c\u6574\u6027 ;
\n \u2013 REPAIR TABLE:\u4fee\u590d;
\n \u2013 OPTIMIZE TABLE:\u4f18\u5316;
\n2.\u6bcf\u4e2a\u8bed\u53e5\u5747\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a\u8868\u540d\u79f0\u548c\u53ef\u9009\u7684\u5173\u952e\u5b57;
\n3.\u7ef4\u62a4\u8bed\u53e5\u548c\u8f93\u51fa\u7684\u793a\u4f8b:
\n \u2022 Table:\u6307\u793a\u5bf9\u5176\u6267\u884c\u64cd\u4f5c\u7684\u8868;
\n \u2022 Op:\u6307\u51fa\u64cd\u4f5c(\u68c0\u67e5,\u4fee\u590d,\u5206\u6790\u6216\u4f18\u5316);
\n \u2022 Msg_type:\u6307\u793a\u6210\u529f\u6216\u5931\u8d25;
\n \u2022 Msg_text:\u63d0\u4f9b\u5176\u4ed6\u4fe1\u606f;
\nmysql> CHECK TABLE City, City1;
\n+————+——-+———-+———-+
\n| Table | Op | Msg_type | Msg_text |
\n+————+——-+———-+———-+
\n| world.City | check | status | OK |
\n+————+——-+———-+———-+<\/p>\n
— ANALYZE TABLE\u8bed\u53e5;
\n1.\u5206\u6790\u5e76\u5b58\u50a8\u8868\u7684\u952e\u5206\u5e03\u7edf\u8ba1\u4fe1\u606f:\u5728\u5bf9\u591a\u4e2a\u5bf9\u8c61\u6267\u884c\u8054\u63a5\u64cd\u4f5c\u65f6,MySQL \u4f7f\u7528\u6240\u5b58\u50a8\u7684\u952e\u5206\u5e03\u7edf\u8ba1\u4fe1\u606f\u6765\u786e\u5b9a\u4f18\u5316\u7a0b\u5e8f\u8054\u63a5\u8868\u7684\u987a\u5e8f;
\n2.\u7528\u4e8e\u66f4\u597d\u5730\u8fdb\u884c\u67e5\u8be2\u6267\u884c\u9009\u62e9:\u952e\u5206\u5e03\u786e\u5b9a\u4e86MySQL\u7528\u4e8e\u67e5\u8be2\u4e2d\u7684\u7279\u5b9a\u8868\u7684\u7d22\u5f15;
\n3.\u6267\u884cANALYZE TABLE\u8bed\u53e5\u6765\u5206\u6790\u5e76\u5b58\u50a8\u7edf\u8ba1\u4fe1\u606f,\u6216\u8005\u914d\u7f6eInnoDB,\u4ee5\u4fbf\u5728\u5927\u91cf\u6570\u636e\u53d1\u751f\u66f4\u6539\u4e4b\u540e\u6216\u8005\u5728\u67e5\u8be2\u8868\u6216\u7d22\u5f15\u5143\u6570\u636e\u65f6\u81ea\u52a8\u6536\u96c6\u7edf\u8ba1\u4fe1\u606f:
\n 1.\u5728\u5206\u6790\u8fc7\u7a0b\u4e2d,\u5bf9\u4e8eInnoDB\u548cMyISAM,MySQL\u4f7f\u7528\u8bfb\u53d6\u9501\u6765\u9501\u5b9a\u8868;
\n 2.\u6b64\u8bed\u53e5\u7b49\u6548\u4e8e\u4f7f\u7528mysqlcheck –analyze;
\n 3.\u9700\u8981\u5bf9\u8868\u6709SELECT\u548cINSERT\u7279\u6743;
\n 4.\u652f\u6301\u5206\u533a\u8868,\u8fd8\u53ef\u4ee5\u4f7f\u7528ALTER TABLE…ANALYZE PARTITION\u68c0\u67e5\u4e00\u4e2a\u6216\u591a\u5206\u533a;
\n 5.\u5982\u679c\u81ea\u4ece\u8fd0\u884c\u4e0a\u4e00\u4e2aANALYZE TABLE\u8bed\u53e5\u540e\u8868\u672a\u53d1\u751f\u4efb\u4f55\u66f4\u6539,\u5219MySQL\u4e0d\u4f1a\u5206\u6790\u8be5\u8868;
\n4.\u9ed8\u8ba4\u60c5\u51b5\u4e0b,MySQL\u4f1a\u5c06ANALYZE TABLE\u8bed\u53e5\u5199\u5165\u4e8c\u8fdb\u5236\u65e5\u5fd7\u5e76\u5c06\u8fd9\u4e9b\u8bed\u53e5\u590d\u5236\u5230\u590d\u5236\u4ece\u5c5e\u89d2\u8272\u4e2d,\u7981\u6b62\u4f7f\u7528\u53ef\u9009\u7684NO_WRITE_TO_BINLOG\u5173\u952e\u5b57\u6216\u5176\u522b\u540dLOCAL\u6267\u884c\u65e5\u5fd7\u8bb0\u5f55;
\n5.\u63a7\u5236MySQL\u6536\u96c6\u548c\u5b58\u50a8\u952e\u5206\u5e03\u7edf\u8ba1\u4fe1\u606f\u65b9\u5f0f\u7684\u9009\u9879:
\n 1.innodb_stats_persistent:\u6b64\u9009\u9879\u4e3aON\u65f6,MySQL\u5c06\u5bf9\u65b0\u521b\u5efa\u7684\u8868\u542f\u7528STATS_PERSISTENT\u8bbe\u7f6e;
\n 1.\u4f7f\u7528CREATE TABLE\u6216ALTER TABLE\u8bed\u53e5\u65f6,\u8fd8\u53ef\u4ee5\u5bf9\u8868\u8bbe\u7f6eSTATS_PERSISTENT;
\n 2.\u9ed8\u8ba4\u60c5\u51b5\u4e0b,MySQL\u4e0d\u4f1a\u5c06\u952e\u5206\u5e03\u7edf\u8ba1\u4fe1\u606f\u6301\u4e45\u4fdd\u7559\u5728\u78c1\u76d8\u4e0a,\u56e0\u6b64\u6709\u65f6\u5fc5\u987b\u751f\u6210\u8fd9\u4e9b\u4fe1\u606f(\u5982\u670d\u52a1\u5668\u91cd\u65b0\u542f\u52a8\u540e);
\n 3.\u5bf9\u4e8e\u542f\u7528\u4e86STATS_PERSISTENT\u7684\u8868,MySQL\u4f1a\u5c06\u5176\u952e\u5206\u5e03\u7edf\u8ba1\u4fe1\u606f\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a,\u4ece\u800c\u4e0d\u9700\u8981\u9891\u7e41\u5730\u4e3a\u8fd9\u4e9b\u8868\u751f\u6210\u7edf\u8ba1\u4fe1\u606f;
\n 4.\u968f\u7740\u65f6\u95f4\u63a8\u79fb,\u901a\u8fc7\u6b64\u64cd\u4f5c\u4f18\u5316\u7a0b\u5e8f\u53ef\u4ee5\u521b\u5efa\u66f4\u4e00\u81f4\u7684\u67e5\u8be2\u8ba1\u5212;
\n 2.innodb_stats_persistent_sample_pages:MySQL\u901a\u8fc7\u8bfb\u53d6STATS_PERSISTENT\u8868\u7684\u7d22\u5f15\u9875\u6837\u4f8b(\u800c\u5e76\u975e\u6574\u4e2a\u8868)\u91cd\u65b0\u8ba1\u7b97\u7edf\u8ba1\u4fe1\u606f;
\n 1.\u9ed8\u8ba4\u60c5\u51b5\u4e0b,\u5c06\u8bfb\u53d620\u9875\u6837\u4f8b;
\n 2.\u589e\u5927\u6b64\u6570\u5b57\u53ef\u63d0\u9ad8\u6240\u751f\u6210\u7684\u7edf\u8ba1\u4fe1\u606f\u548c\u67e5\u8be2\u8ba1\u5212\u7684\u8d28\u91cf;
\n 3.\u964d\u4f4e\u6b64\u6570\u5b57\u53ef\u51cf\u5c11\u7528\u4e8e\u751f\u6210\u7edf\u8ba1\u4fe1\u606f\u7684I\/O\u6210\u672c;
\n 3.innodb_stats_transient_sample_pages:\u6b64\u9009\u9879\u7528\u4e8e\u63a7\u5236\u5bf9\u6ca1\u6709STATS_PERSISTENT\u8bbe\u7f6e\u7684\u8868\u7684\u62bd\u6837\u7d22\u5f15\u9875\u6570\u91cf;
\n \u4ee5\u4e0b\u9009\u9879\u7528\u4e8e\u63a7\u5236MySQL\u81ea\u52a8\u6536\u96c6\u7edf\u8ba1\u4fe1\u606f\u7684\u65b9\u5f0f:
\n 4.innodb_stats_auto_recalc:\u542f\u7528\u6b64\u9009\u9879\u65f6,\u5982\u679cSTATS_PERSISTENT\u8868\u4e2d10%\u7684\u884c\u81ea\u524d\u4e00\u6b21\u91cd\u65b0\u8ba1\u7b97\u540e\u6709\u6240\u53d8\u5316,\u5219MySQL\u5c06\u81ea\u52a8\u4e3a\u8be5\u8868\u751f\u6210\u7edf\u8ba1\u4fe1\u606f;
\n 5.innodb_stats_on_metadata:\u542f\u7528\u6b64\u9009\u9879\u53ef\u5728\u6267\u884c\u5143\u6570\u636e\u8bed\u53e5(\u5982SHOW TABLE STATUS)\u6216\u67e5\u8be2INFORMATION_SCHEMA.TABLES\u65f6\u66f4\u65b0\u7edf\u8ba1\u4fe1\u606f;\u9ed8\u8ba4\u60c5\u51b5\u4e0b,\u6b64\u9009\u9879\u5904\u4e8e\u7981\u7528\u72b6\u6001;
\n6.ANALYZE TABLE \u6b63\u5e38\u7ed3\u679c\u7684\u793a\u4f8b;<\/p>\n
— CHECK TABLE\u8bed\u53e5;
\n1.\u68c0\u67e5\u8868\u7ed3\u6784\u7684\u5b8c\u6574\u6027,\u5e76\u68c0\u67e5\u5185\u5bb9\u4e2d\u662f\u5426\u5305\u542b\u9519\u8bef;\u5bf9\u4e8eMyISAM\u8868,\u8fd8\u5c06\u66f4\u65b0\u952e\u7edf\u8ba1\u4fe1\u606f;
\n2.\u9a8c\u8bc1\u89c6\u56fe\u5b9a\u4e49:\u4f8b\u5982\u89c6\u56fe\u5b9a\u4e49\u4e2d\u5f15\u7528\u7684\u8868\u4e0d\u518d\u5b58\u5728;
\n3.\u652f\u6301\u5206\u533a\u8868:\u652f\u6301\u5206\u533a\u8868\u3002\u8fd8\u53ef\u4ee5\u4f7f\u7528ALTER TABLE…CHECK PARTITION\u68c0\u67e5\u4e00\u4e2a\u6216\u591a\u4e2a\u5206\u533a;
\n4.\u5904\u7406InnoDB,CSV,MyISAM\u548cARCHIVE\u8868:
\n5.CHECK TABLE\u9009\u9879:
\n 1.FOR UPGRADE:\u670d\u52a1\u5668\u5c06\u68c0\u67e5\u6bcf\u4e2a\u8868\u4ee5\u786e\u5b9a\u8868\u7ed3\u6784\u662f\u5426\u4e0e\u5f53\u524d\u7684MySQL\u7248\u672c\u517c\u5bb9,\u53ef\u80fd\u4f1a\u56e0\u4e3a\u67d0\u79cd\u6570\u636e\u7c7b\u578b\u7684\u5b58\u50a8\u683c\u5f0f\u6216\u6392\u5e8f\u987a\u5e8f\u53d1\u751f\u53d8\u5316\u800c\u51fa\u73b0\u4e0d\u517c\u5bb9\u7684\u60c5\u51b5;\u5982\u679c\u51fa\u73b0\u6f5c\u5728\u7684\u4e0d\u517c\u5bb9\u60c5\u51b5,\u5219\u670d\u52a1\u5668\u5c06\u5bf9\u8868\u8fd0\u884c\u5168\u9762\u68c0\u67e5,\u5982\u679c\u5168\u9762\u68c0\u67e5\u6210\u529f,\u5219\u670d\u52a1\u5668\u4f1a\u4f7f\u7528\u5f53\u524d\u7684MySQL\u7248\u672c\u53f7\u6807\u8bb0\u8868\u7684.frm\u6587\u4ef6;\u5bf9.frm\u6587\u4ef6\u8fdb\u884c\u6807\u8bb0\u53ef\u4ee5\u786e\u4fdd\u4ee5\u540e\u5bf9\u4e8e\u4e0e\u670d\u52a1\u5668\u7248\u672c\u76f8\u540c\u7684\u8868\u8fdb\u884c\u68c0\u67e5\u7684\u901f\u5ea6\u4f1a\u52a0\u5feb;
\n 2.QUICK:\u4e0d\u626b\u63cf\u884c\u6765\u68c0\u67e5\u9519\u8bef\u94fe\u63a5;
\n6.\u5982\u679cCHECK TABLE\u53d1\u73b0InnoDB\u8868\u51fa\u73b0\u95ee\u9898:
\n 1.\u670d\u52a1\u5668\u5c06\u5173\u95ed,\u4ee5\u9632\u6b62\u9519\u8bef\u6269\u6563;
\n 2.MySQL\u4f1a\u5c06\u9519\u8bef\u5199\u5165\u9519\u8bef\u65e5\u5fd7;
\n7.\u5982\u679cCHECK TABLE\u7684\u8f93\u51fa\u8868\u660e\u67d0\u4e2a\u8868\u51fa\u73b0\u95ee\u9898,\u8bf7\u4fee\u590d\u8be5\u8868;
\n 1.\u53ef\u4ee5\u5148\u4f7f\u7528CHECK TABLE\u8bed\u53e5\u68c0\u6d4b\u786c\u4ef6\u95ee\u9898(\u5982\u5185\u5b58\u6545\u969c\u6216\u78c1\u76d8\u6247\u533a\u635f\u574f),\u7136\u540e\u518d\u4fee\u590d\u8868;
\n 2.Msg_text\u8f93\u51fa\u5217\u901a\u5e38\u4e3aOK,\u5982\u679c\u8f93\u51fa\u4e0d\u662fOK\u6216Table is already up to date,\u8bf7\u5bf9\u8be5\u8868\u8fd0\u884c\u4fee\u590d;
\n 3.\u5982\u679c\u8be5\u8868\u88ab\u6807\u8bb0\u4e3acorrupted\u6216not closed properly,\u4f46CHECK TABLE\u5728\u8868\u4e2d\u672a\u53d1\u73b0\u4efb\u4f55\u95ee\u9898,\u5219\u4f1a\u5c06\u8be5\u8868\u6807\u8bb0\u4e3aOK;<\/p>\n
— CHECKSUM TABLE\u8bed\u53e5;
\n1.\u62a5\u544a\u8868checksum:
\n 1.CHECKSUM TABLE\u9700\u8981\u5bf9\u8868\u6709SELECT\u7279\u6743;
\n 2.\u7528\u4e8e\u9a8c\u8bc1\u8868\u7684\u5185\u5bb9\u5728\u5907\u4efd,\u56de\u6eda\u6216\u5176\u4ed6\u64cd\u4f5c\u524d\u540e\u662f\u5426\u76f8\u540c;
\n 3.\u5bf9\u4e8e\u4e0d\u5b58\u5728\u7684\u8868,CHECKSUM TABLE\u5c06\u8fd4\u56deNULL\u5e76\u751f\u6210\u8b66\u544a;
\n2.\u9010\u884c\u8bfb\u53d6\u6574\u4e2a\u8868\u4ee5\u8ba1\u7b97\u6821\u9a8c\u548c:
\n 1.\u9ed8\u8ba4\u7684EXTENDED\u9009\u9879\u63d0\u4f9b\u4e86\u6b64\u884c\u4e3a(\u5c06\u9010\u884c\u8bfb\u53d6\u6574\u4e2a\u8868,\u5e76\u8ba1\u7b97checksum);
\n 2.QUICK\u9009\u9879\u5bf9MyISAM\u8868\u53ef\u7528;
\n 1.\u5c06\u62a5\u544a\u5b9e\u65f6\u8868checksum(\u5982\u679c\u53ef\u7528);\u5426\u5219\u5c06\u62a5\u544aNULL,\u6b64\u64cd\u4f5c\u975e\u5e38\u5feb;
\n 2.\u901a\u8fc7\u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9aCHECKSUM=1 \u8868\u9009\u9879,\u5bf9MyISAM\u8868\u542f\u7528\u4e86\u5b9e\u65f6checksum;
\n 3.checksum\u503c\u53d6\u51b3\u4e8e\u8868\u4e2d\u7684\u884c\u683c\u5f0f,\u5982\u679c\u884c\u683c\u5f0f\u53d1\u751f\u4e86\u53d8\u5316,\u5219checksum\u4e5f\u4f1a\u66f4\u6539;\u4f8b\u5982,VARCHAR\u7684\u5b58\u50a8\u683c\u5f0f\u5728MySQL 4.1\u4e4b\u540e\u7684\u7248\u672c\u4e2d\u6709\u6240\u53d8\u5316,\u56e0\u6b64,\u5728\u5c064.1\u8868\u5347\u7ea7\u5230\u66f4\u9ad8\u7248\u672c\u540e,\u5982\u679c\u8868\u4e2d\u5305\u542b VARCHAR\u5b57\u6bb5,\u5219checksum\u503c\u5c06\u53d1\u751f\u53d8\u5316;
\n3.CHECKSUM TABLE\u8bed\u53e5\u7684\u793a\u4f8b;
\nTIPS:\u5982\u679c\u4e24\u4e2a\u8868\u7684checksums\u4e0d\u540c,\u5219\u5f88\u53ef\u80fd\u8fd9\u4e24\u4e2a\u8868\u5b58\u5728\u67d0\u65b9\u9762\u7684\u5dee\u5f02;\u4e0d\u8fc7,\u56e0\u4e3aCHECKSUM TABLE\u4f7f\u7528\u7684\u6563\u5217\u51fd\u6570\u65e0\u6cd5\u4fdd\u8bc1\u4e0d\u51b2\u7a81,\u6240\u4ee5\u5b58\u5728\u4e24\u4e2a\u4e0d\u540c\u7684\u8868\u751f\u6210\u76f8\u540cchecksum\u7684\u5fae\u5f31\u53ef\u80fd\u6027;<\/p>\n
— OPTIMIZE TABLE\u8bed\u53e5;
\n1.\u901a\u8fc7\u5bf9\u8868\u8fdb\u884c\u788e\u7247\u6574\u7406\u6765\u6e05\u7406\u8868
\n 1.\u901a\u8fc7\u91cd\u65b0\u6784\u5efa\u8868\u5e76\u91ca\u653e\u672a\u4f7f\u7528\u7684\u7a7a\u95f4\u5bf9\u8868\u8fdb\u884c\u788e\u7247\u6574\u7406;
\n 2.\u5408\u5e76\u88ab\u5206\u9694\u5f00\u7684\u8bb0\u5f55\u548c\u4ee5\u975e\u8fde\u7eed\u65b9\u5f0f\u5b58\u50a8\u7684\u8bb0\u5f55;
\n 3.\u9700\u8981\u5bf9\u8868\u6709SELECT\u548cINSERT\u7279\u6743;
\n2.\u5728\u4f18\u5316\u8fc7\u7a0b\u4e2d\u9501\u5b9a\u8868;
\n3.\u66f4\u65b0\u7d22\u5f15\u7edf\u8ba1\u4fe1\u606f:
\n 1.\u4f8b\u5982,\u4fee\u6539\u5927\u91cf\u884c\u4e4b\u540e,\u53ef\u4ee5\u4f7f\u7528OPTIMIZE TABLE\u8bed\u53e5\u5728InnoDB\u4e2d\u91cd\u6784\u4e00\u4e2aFULLTEXT\u7d22\u5f15;
\n 2.\u5bf9\u4e8eInnoDB\u8868,OPTIMIZE TABLE\u5c06\u6620\u5c04\u5230ALTER TABLE,\u540e\u8005\u5c06\u91cd\u6784\u8868\u4ee5\u66f4\u65b0\u7d22\u5f15\u7edf\u8ba1\u4fe1\u606f\u5e76\u91ca\u653e\u7fa4\u96c6\u7d22\u5f15\u4e2d\u672a\u4f7f\u7528\u7684\u7a7a\u95f4;
\n 3.InnoDB\u4e0d\u4f1a\u50cf\u5176\u4ed6\u5b58\u50a8\u5f15\u64ce\u4e00\u6837\u53d7\u788e\u7247\u5f71\u54cd,\u56e0\u6b64\u4e0d\u9700\u8981\u7ecf\u5e38\u4f7f\u7528OPTIMIZE TABLE;
\n4.\u6700\u9002\u7528\u4e8e\u5b8c\u5168\u586b\u5145\u7684\u6c38\u4e45\u8868:
\n5.\u5904\u7406InnoDB,MyISAM\u548cARCHIVE\u8868:
\n 1.\u5bf9\u4f7f\u7528ARCHIVE\u5b58\u50a8\u5f15\u64ce\u7684\u8868\u4f7f\u7528OPTIMIZE TABLE\u53ef\u4ee5\u538b\u7f29\u8be5\u8868;
\n 2.\u7531SHOW TABLE STATUS\u6240\u62a5\u544a\u7684ARCHIVE\u8868\u4e2d\u7684\u884c\u6570\u59cb\u7ec8\u6bd4\u8f83\u51c6\u786e;
\n 3.\u4f18\u5316\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u4f1a\u51fa\u73b0\u4e00\u4e2a.ARN\u6587\u4ef6;
\n6.\u652f\u6301\u5206\u533a\u8868:\u8fd8\u53ef\u4ee5\u4f7f\u7528ALTER TABLE…OPTIMIZE PARTITION\u68c0\u67e5\u4e00\u4e2a\u6216\u591a\u4e2a\u5206\u533a;
\n7.OPTIMIZE TABLE\u9009\u9879:
\n 1.NO_WRITE_TO_BINLOG\u6216LOCAL:\u7981\u7528\u4e8c\u8fdb\u5236\u65e5\u5fd7;
\n8.\u5df2\u5220\u9664\u7684\u884c\u5c06\u4fdd\u7559\u5728\u94fe\u63a5\u7684\u5217\u8868\u4e2d,\u800c\u540e\u7eed\u7684INSERT\u64cd\u4f5c\u5c06\u91cd\u7528\u4e4b\u524d\u884c\u7684\u4f4d\u7f6e,OPTIMIZE TABLE\u5bf9\u5b8c\u5168\u586b\u5145\u7684\u8868\u4f7f\u7528\u65f6\u6548\u679c\u6700\u4f73\u5e76\u4e14\u4e0d\u4f1a\u53d1\u751f\u5f88\u5927\u66f4\u6539;\u5982\u679c\u6570\u636e\u66f4\u6539\u8f83\u591a\u5e76\u7ecf\u5e38\u9700\u8981\u4f18\u5316,\u5219\u4f18\u5316\u7684\u4f18\u52bf\u5c06\u4f1a\u5927\u5927\u964d\u4f4e;<\/p>\n
— REPAIR TABLE\u8bed\u53e5;
\n1.\u4fee\u590d\u53ef\u80fd\u5df2\u635f\u574f\u7684MyISAM\u6216ARCHIVE\u8868;
\n 1.\u4e0d\u652f\u6301InnoDB;
\n2.\u652f\u6301\u5206\u533a\u8868;
\n3.REPAIR TABLE\u9009\u9879:
\n 1.QUICK:\u5c1d\u8bd5\u4ec5\u4fee\u590d\u7d22\u5f15\u6587\u4ef6,\u800c\u4e0d\u4fee\u590d\u6570\u636e\u6587\u4ef6;\u6b64\u7c7b\u578b\u7684\u4fee\u590d\u4e0emyisamchk –recover –quick\u6240\u6267\u884c\u7684\u4fee\u590d\u76f8\u4f3c;
\n 2.EXTENDED:MySQL\u5c06\u9010\u884c\u521b\u5efa\u7d22\u5f15,\u800c\u4e0d\u662f\u4e00\u6b21\u6027\u521b\u5efa\u6709\u5e8f\u7d22\u5f15;\u6b64\u7c7b\u578b\u7684\u4fee\u590d\u4e0emyisamchk –safe-recover\u6240\u6267\u884c\u7684\u4fee\u590d\u76f8\u4f3c;
\n 3.USE_FRM:\u4f7f\u7528.FRM\u6587\u4ef6\u91cd\u65b0\u521b\u5efa.MYI\u6587\u4ef6;\u9009\u9879\u4e0d\u80fd\u7528\u4e8e\u5206\u533a\u8868
\n 4.NO_WRITE_TO_BINLOG\u6216LOCAL:\u7981\u7528\u4e8c\u8fdb\u5236\u65e5\u5fd7;
\n4.TIPS:
\n 1.\u5728\u6267\u884c\u8868\u4fee\u590d\u64cd\u4f5c\u4e4b\u524d,\u6700\u597d\u5bf9\u8868\u8fdb\u884c\u5907\u4efd;\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b,\u8be5\u64cd\u4f5c\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e22\u5931;\u53ef\u80fd\u7684\u539f\u56e0\u5305\u62ec(\u4f46\u4e0d\u4ec5\u9650\u4e8e)\u6587\u4ef6\u7cfb\u7edf\u9519\u8bef;
\n 2.\u5982\u679c\u670d\u52a1\u5668\u5728REPAIR TABLE\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\u5d29\u6e83,\u5219\u4e3a\u907f\u514d\u8fdb\u4e00\u6b65\u7684\u635f\u574f,\u91cd\u542f\u4e4b\u540e\u5e94\u7acb\u5373\u6267\u884c\u53e6\u4e00REPAIR TABLE,\u7136\u540e\u518d\u6267\u884c\u5176\u4ed6\u4efb\u4f55\u64cd\u4f5c;
\n 3.\u5982\u679c\u7ecf\u5e38\u9700\u8981\u4f7f\u7528REPAIR TABLE\u4ece\u635f\u574f\u7684\u8868\u8fdb\u884c\u6062\u590d,\u8bf7\u5c1d\u8bd5\u627e\u51fa\u6839\u672c\u539f\u56e0,\u4ee5\u9632\u6b62\u76f8\u5e94\u635f\u574f\u5e76\u907f\u514d\u4f7f\u7528REPAIR TABLE;<\/p>\n
— mysqlcheck\u5ba2\u6237\u673a\u7a0b\u5e8f;
\n1.\u662f\u7528\u4e8e\u68c0\u67e5,\u4fee\u590d,\u5206\u6790\u548c\u4f18\u5316\u8868\u7684\u547d\u4ee4\u884c\u5ba2\u6237\u673a;
\n2.\u6bd4\u53d1\u51faSQL\u8bed\u53e5\u66f4\u52a0\u65b9\u4fbf;
\n 1.\u4f8b\u5982,\u5982\u679c\u63d0\u4f9b\u6570\u636e\u5e93\u540d\u79f0\u4f5c\u4e3a\u5176\u53c2\u6570,\u5219mysqlcheck\u5c06\u786e\u5b9a\u8be5\u6570\u636e\u5e93\u6240\u5305\u542b\u7684\u8868,\u5e76\u53d1\u51fa\u8bed\u53e5\u5904\u7406\u6240\u6709\u8fd9\u4e9b\u8868;\u4e0d\u9700\u8981\u63d0\u4f9b\u660e\u786e\u7684\u8868\u540d\u79f0\u4f5c\u4e3a\u53c2\u6570;
\n 2.\u7531\u4e8emysqlcheck\u662f\u547d\u4ee4\u884c\u7a0b\u5e8f,\u56e0\u6b64\u53ef\u4ee5\u5728\u6267\u884c\u8ba1\u5212\u7ef4\u62a4\u7684\u64cd\u4f5c\u7cfb\u7edf\u4f5c\u4e1a\u4e2d\u8f7b\u677e\u4f7f\u7528\u8be5\u7a0b\u5e8f;
\n3.\u5904\u7406InnoDB,MyISAM\u548cARCHIVE\u8868;
\n4.\u4e09\u79cd\u68c0\u67e5\u7ea7\u522b:
\n 1.\u7279\u5b9a\u4e8e\u8868;
\n 2.\u7279\u5b9a\u4e8e\u6570\u636e\u5e93;
\n 3.\u6240\u6709\u6570\u636e\u5e93;
\n5.\u90e8\u5206mysqlcheck\u7ef4\u62a4\u9009\u9879:
\n 1.–analyze:\u6267\u884cANALYZE;
\n 2.–check:\u6267\u884cCHECK TABLE(\u9ed8\u8ba4);
\n 3.–optimize:\u6267\u884cOPTIMIZE TABLE;
\n 4.–repair:\u6267\u884cREPAIR TABLE;
\n6.Oracle\u5efa\u8bae\u9996\u5148\u5728\u4e0d\u4f7f\u7528\u4efb\u4f55\u9009\u9879\u7684\u60c5\u51b5\u4e0b\u8fd0\u884cmysqlcheck,\u5982\u679c\u9700\u8981\u4fee\u590d\u518d\u91cd\u65b0\u8fd0\u884c;
\n7.\u90e8\u5206mysqlcheck\u4fee\u6539\u9009\u9879:
\n 1.–repair –quick:\u5c1d\u8bd5\u5feb\u901f\u4fee\u590d;
\n 2.–repair:\u6b63\u5e38\u4fee\u590d(\u5982\u679c\u5feb\u901f\u4fee\u590d\u5931\u8d25);
\n 3.–repair –force:\u5f3a\u5236\u4fee\u590d;
\n8.mysqlcheck\u793a\u4f8b:
\n shell> mysqlcheck –login-path=admin world_innodb
\n shell> mysqlcheck -uroot -p mysql user –repair
\n shell> mysqlcheck -uroot -p –all-databases
\n shell> mysqlcheck –login-path=admin –analyze –all-databases
\n9.\u9ed8\u8ba4\u60c5\u51b5\u4e0b,mysqlcheck\u5c06\u5176\u7b2c\u4e00\u4e2a\u975e\u9009\u9879\u53c2\u6570\u89e3\u91ca\u4e3a\u6570\u636e\u5e93\u540d\u79f0,\u5e76\u68c0\u67e5\u8be5\u6570\u636e\u5e93\u4e2d\u7684\u6240\u6709\u8868;\u5982\u679c\u6570\u636e\u5e93\u540d\u79f0\u540e\u9762\u6709\u5176\u4ed6\u4efb\u4f55\u53c2\u6570,\u5219\u4f1a\u5c06\u8fd9\u4e9b\u53c2\u6570\u89c6\u4e3a\u8868\u540d\u79f0,\u4ece\u800c\u53ea\u68c0\u67e5\u8fd9\u4e9b\u8868;
\n\u672c\u5e7b\u706f\u7247\u4e2d\u663e\u793a\u7684 mysqlcheck \u793a\u4f8b\u6f14\u793a\u4e86\u4ee5\u4e0b\u5185\u5bb9:<\/p>\n
— myisamchk\u5b9e\u7528\u7a0b\u5e8f;
\n1.\u662f\u7528\u4e8e\u68c0\u67e5MyISAM\u8868\u7684\u975e\u5ba2\u6237\u673a\u5b9e\u7528\u7a0b\u5e8f;
\n2.myisamchk\u4e0emysqlcheck\u5177\u6709\u76f8\u4f3c\u7684\u7528\u9014,\u5176\u5dee\u5f02\u5305\u62ec:
\n 1.\u53ef\u4ee5\u542f\u7528\u6216\u7981\u7528\u7d22\u5f15;
\n 2.\u4e0d\u4e0eMySQL\u670d\u52a1\u5668\u901a\u4fe1,\u76f4\u63a5(\u800c\u4e0d\u662f\u901a\u8fc7\u670d\u52a1\u5668)\u8bbf\u95ee\u8868\u6587\u4ef6;
\n 3.\u5728\u4f7f\u7528myisamchk\u6267\u884c\u8868\u7ef4\u62a4\u7684\u540c\u65f6\u907f\u514d\u5e76\u53d1\u8868\u8bbf\u95ee:
\n 1.\u786e\u4fdd\u670d\u52a1\u5668\u4e0d\u4f1a\u8bbf\u95ee\u6b63\u5728\u8fdb\u884c\u5904\u7406\u7684\u8868,\u4e00\u79cd\u5b9e\u73b0\u65b9\u6cd5\u662f\u9501\u5b9a\u8868\u6216\u505c\u6b62\u670d\u52a1\u5668;
\n 2.\u5728\u547d\u4ee4\u63d0\u793a\u7b26\u4e2d,\u5c06\u4f4d\u7f6e\u66f4\u6539\u4e3a\u8868\u6240\u5728\u7684\u6570\u636e\u5e93\u76ee\u5f55;\u8fd9\u662f\u670d\u52a1\u5668\u6570\u636e\u76ee\u5f55\u7684\u5b50\u76ee\u5f55,\u8be5\u76ee\u5f55\u7684\u540d\u79f0\u4e0e\u8981\u68c0\u67e5\u7684\u8868\u6240\u5728\u7684\u6570\u636e\u5e93\u540d\u79f0\u76f8\u540c;(\u66f4\u6539\u4f4d\u7f6e\u662f\u4e3a\u4e86\u66f4\u52a0\u4fbf\u4e8e\u5f15\u7528\u8868\u6587\u4ef6,\u53ef\u4ee5\u8df3\u8fc7\u6b64\u6b65\u9aa4,\u4f46myisamchk\u5fc5\u987b\u5305\u542b\u8868\u6240\u5728\u7684\u76ee\u5f55;)
\n 3.\u8c03\u7528myisamchk,\u4f7f\u7528\u9009\u9879\u6307\u793a\u8981\u6267\u884c\u7684\u64cd\u4f5c,\u540e\u8ddf\u53c2\u6570\u4ee5\u6307\u5b9amyisamchk\u5e94\u5bf9\u5176\u6267\u884c\u64cd\u4f5c\u7684\u8868;\u8fd9\u4e9b\u53c2\u6570\u53ef\u4ee5\u662f\u8868\u540d\u79f0,\u4e5f\u53ef\u4ee5\u662f\u8868\u7684\u7d22\u5f15\u6587\u4ef6\u7684\u6587\u4ef6\u540d(\u7d22\u5f15\u6587\u4ef6\u540d\u4e0e\u8868\u540d\u79f0\u76f8\u540c,\u5305\u542b.MYI\u540e\u7f00);\u56e0\u6b64,\u53ef\u4ee5\u901a\u8fc7table_name\u6216table_name.MYI\u5f15\u7528\u8868;
\n 4.\u91cd\u65b0\u542f\u52a8\u670d\u52a1\u5668:\u8bf7\u9996\u5148\u5c1d\u8bd5–recover,\u56e0\u4e3a–safe-recover\u6bd4\u8f83\u6162;
\n3.\u90e8\u5206myisamchk \u9009\u9879:
\n 1.–recover:\u4fee\u590d\u8868;
\n 2.–safe-recover:\u4fee\u590d–recover\u65e0\u6cd5\u4fee\u590d\u7684\u8868;
\n4.myisamchk\u793a\u4f8b:
\n shell> myisamchk \/var\/lib\/mysql\/mysql\/help_topic
\n shell> myisamchk help_category.MYI
\n shell> myisamchk –recover help_keyword<\/p>\n
— mysqlcheck\u548cmyisamchk\u7684\u9009\u9879;
\n1.mysqlcheck\u548cmyisamchk\u5747\u4f7f\u7528\u591a\u4e2a\u9009\u9879\u6765\u63a7\u5236\u6240\u6267\u884c\u7684\u8868\u7ef4\u62a4\u64cd\u4f5c\u7684\u7c7b\u578b;
\n2.\u4e24\u8005\u90fd\u9002\u7528:
\n \u2022 –analyze:\u5206\u6790\u8868\u4e2d\u952e\u503c\u7684\u5206\u5e03,\u901a\u8fc7\u52a0\u5feb\u57fa\u4e8e\u7d22\u5f15\u7684\u67e5\u627e,\u8fd9\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u7684\u6027\u80fd;
\n \u2022 –check \u6216 -c:\u68c0\u67e5\u8868\u4e2d\u662f\u5426\u5b58\u5728\u95ee\u9898,\u5982\u679c\u672a\u6307\u5b9a\u5176\u4ed6\u4efb\u4f55\u64cd\u4f5c,\u5219\u4e3a\u9ed8\u8ba4\u64cd\u4f5c;
\n \u2022 –check-only-changed \u6216 -C:\u8df3\u8fc7\u8868\u68c0\u67e5(\u81ea\u4e0a\u4e00\u6b21\u68c0\u67e5\u540e\u5df2\u66f4\u6539\u7684\u8868\u6216\u672a\u6b63\u5e38\u5173\u95ed\u7684\u8868\u9664\u5916),\u5982\u679c\u670d\u52a1\u5668\u5728\u8868\u6253\u5f00\u65f6\u5d29\u6e83,\u5219\u4f1a\u51fa\u73b0\u540e\u4e00\u79cd\u60c5\u51b5;
\n \u2022 –fast \u6216 -F:\u8df3\u8fc7\u8868\u68c0\u67e5(\u672a\u6b63\u5e38\u5173\u95ed\u7684\u8868\u9664\u5916);
\n \u2022 –medium-check \u6216 -m:\u8fd0\u884c\u4e2d\u7b49\u8868\u68c0\u67e5;
\n \u2022 –quick \u6216 -q:\u5bf9\u4e8emysqlcheck,\u4e0d\u5305\u542b\u4fee\u590d\u9009\u9879\u7684–quick\u4f1a\u5bfc\u81f4\u53ea\u68c0\u67e5\u7d22\u5f15\u6587\u4ef6,\u800c\u4e0d\u68c0\u67e5\u6570\u636e\u6587\u4ef6;\u5bf9\u4e8e\u8fd9\u4e24\u4e2a\u7a0b\u5e8f,\u5c06–quick\u4e0e\u4fee\u590d\u9009\u9879\u7ed3\u5408\u4f7f\u7528\u90fd\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u53ea\u4fee\u590d\u7d22\u5f15\u6587\u4ef6,\u800c\u4e0d\u4fee\u590d\u6570\u636e\u6587\u4ef6;
\n3.mysqlcheck & myisamchk:
\n \u2022 –auto-repair:\u5982\u679c\u68c0\u67e5\u64cd\u4f5c\u53d1\u73b0\u4e86\u95ee\u9898,\u5219\u81ea\u52a8\u4fee\u590d\u51fa\u73b0\u95ee\u9898\u7684\u8868;
\n \u2022 –repair\u3001–recover \u6216 -r:\u8fd0\u884c\u8868\u4fee\u590d\u64cd\u4f5c;
\n \u2022 –extended\u3001–extend-check \u6216 -e:\u8fd0\u884c\u6269\u5c55\u8868\u68c0\u67e5,\u5bf9\u4e8emysqlcheck,\u5c06\u6b64\u9009\u9879\u4e0e\u4fee\u590d\u9009\u9879\u7ed3\u5408\u4f7f\u7528\u65f6,\u5c06\u6267\u884c\u6bd4\u5355\u72ec\u4f7f\u7528\u4fee\u590d\u9009\u9879\u65f6\u66f4\u5f7b\u5e95\u7684\u4fee\u590d;\u5373,–repair –extended\u6267\u884c\u7684\u4fee\u590d\u64cd\u4f5c\u6bd4–repair\u6267\u884c\u7684\u64cd\u4f5c\u66f4\u5f7b\u5e95;<\/p>\n
— InnoDB\u8868\u7ef4\u62a4; — MyISAM\u8868\u7ef4\u62a4; \u8865\u5145: — MEMORY\u8868\u7ef4\u62a4; — ARCHIVE\u8868\u7ef4\u62a4; — \u8bfe\u540e\u7ec3\u4e60; — \u8868\u7ef4\u62a4\u7684\u5b9e\u65bd; 1.\u8868\u7ef4\u62a4\u64cd\u4f5c\u5bf9\u4e8e\u786e\u5b9a\u548c\u66f4\u6b63\u6570\u636e\u5e93\u95ee\u9898\u5341\u5206\u6709\u7528,\u5982\u4ee5\u4e0b\u95ee\u9898: \u2013 \u7531\u4e8e\u670d\u52a1\u5668\u5d29 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[27,31],"class_list":["post-1313","post","type-post","status-publish","format-standard","hentry","category-mysql","tag-mysql","tag-mysql_ocp"],"_links":{"self":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts\/1313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1313"}],"version-history":[{"count":1,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts\/1313\/revisions"}],"predecessor-version":[{"id":1314,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts\/1313\/revisions\/1314"}],"wp:attachment":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1313"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n1.\u51fa\u73b0\u6545\u969c\u4e4b\u540e,InnoDB\u5c06\u81ea\u52a8\u6062\u590d;
\n2.\u4f7f\u7528CHECK TABLE\u6216\u5ba2\u6237\u673a\u7a0b\u5e8f\u53ef\u627e\u51fa\u4e0d\u4e00\u81f4,\u4e0d\u517c\u5bb9\u548c\u5176\u4ed6\u95ee\u9898;
\n3.\u5982\u679c\u8868\u68c0\u67e5\u8868\u660e\u5b58\u5728\u95ee\u9898,\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528mysqldump\u5bf9\u8868\u8fdb\u884c\u8f6c\u50a8\u6765\u6062\u590d\u8be5\u8868:
\n 1.\u5907\u4efd\u8868\u5185\u5bb9:shell> mysqldump
\n 2.\u7136\u540e,\u5220\u9664\u8be5\u8868\u5e76\u4ece\u8f6c\u50a8\u6587\u4ef6\u91cd\u65b0\u521b\u5efa:shell> mysql
\n4.\u5982\u679cMySQL\u670d\u52a1\u5668\u6216\u5176\u8fd0\u884c\u4e3b\u673a\u5d29\u6e83,\u5219\u67d0\u4e9bInnoDB\u8868\u53ef\u80fd\u5904\u4e8e\u4e0d\u4e00\u81f4\u72b6\u6001,\u5728InnoDB\u7684\u542f\u52a8\u5e8f\u5217\u4e2d,\u4f1a\u6267\u884c\u81ea\u52a8\u6062\u590d;\u670d\u52a1\u5668\u5f88\u5c11\u56e0\u4e3a\u81ea\u52a8\u6062\u590d\u6545\u969c\u800c\u65e0\u6cd5\u542f\u52a8,\u5982\u679c\u51fa\u73b0\u6b64\u60c5\u51b5,\u5219\u53ef\u4ee5:
\n 1.\u91cd\u65b0\u542f\u52a8\u670d\u52a1\u5668,\u5c06–innodb_force_recovery\u9009\u9879\u7684\u503c\u8bbe\u7f6e\u4e3a1\u52306\u4e4b\u95f4\u7684\u503c;\u8fd9\u4e9b\u503c\u8868\u793a\u589e\u52a0\u8b66\u544a\u7ea7\u522b\u4ee5\u907f\u514d\u5d29\u6e83,\u4ee5\u53ca\u9488\u5bf9\u5df2\u6062\u590d\u7684\u8868\u4e2d\u53ef\u80fd\u5b58\u5728\u7684\u4e0d\u4e00\u81f4\u72b6\u51b5\u589e\u52a0\u5bb9\u9519\u7ea7\u522b,\u6700\u597d\u4ece\u503c4\u5f00\u59cb,\u8be5\u503c\u8bbe\u7f6e\u4e3a\u53ea\u8bfb\u6a21\u5f0f;
\n 1.1(SRV_FORCE_IGNORE_CORRUPT):\u5373\u4fbf\u68c0\u6d4b\u5230\u574f\u9875\u4e5f\u8ba9\u670d\u52a1\u6b63\u5e38\u8fd0\u884c,\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528SELECT * FROM tbl_name\u6765\u8df3\u8fc7\u635f\u574f\u7684\u7d22\u5f15\u8bb0\u5f55\u548c\u9875,\u5bf9\u4e8e\u5bfc\u51fa\u6570\u636e\u6bd4\u8f83\u6709\u5e2e\u52a9;
\n 2.2(SRV_FORCE_NO_BACKGROUND):\u963b\u6b62master\u7ebf\u7a0b\u548c\u4efb\u4f55\u7684purge\u7ebf\u7a0b\u8fd0\u884c;
\n 3.3(SRV_FORCE_NO_TRX_UNDO):\u5b9e\u4f8b\u6062\u590d\u540e\u4e0d\u8fd0\u884c\u4e8b\u52a1\u56de\u6eda;
\n 4.4(SRV_FORCE_NO_IBUF_MERGE):\u963b\u6b62\u63d2\u5165\u7f13\u5b58\u5408\u5e76\u64cd\u4f5c;\u4e0d\u4f1a\u7edf\u8ba1\u8868\u7684\u7edf\u8ba1\u4fe1\u606f;\u8fd9\u4e2a\u503c\u4f1a\u6c38\u4e45\u6027\u7684\u7834\u574f\u6570\u636e\u6587\u4ef6,\u5728\u4f7f\u7528\u8fd9\u4e2a\u503c\u4e4b\u540e\u9700\u8981\u5bfc\u51fa\u6570\u636e,\u5220\u6389\u5bf9\u8c61\u7136\u540e\u518d\u91cd\u65b0\u521b\u5efa\u5bf9\u8c61;\u5728MySQL 5.6.15\u4e4b\u540e,\u4f1a\u8bbe\u7f6eInnoDB\u4e3a\u53ea\u8bfb\u6a21\u5f0f;
\n 5.5(SRV_FORCE_NO_UNDO_LOG_SCAN):\u5728\u6570\u636e\u5e93\u542f\u52a8\u65f6\u4e0d\u4f1a\u53bb\u67e5\u770bUNDO\u65e5\u5fd7,InnoDB\u4f1a\u628a\u672a\u63d0\u4ea4\u4e8b\u52a1\u5904\u7406\u4e3a\u5df2\u63d0\u4ea4;\u8fd9\u4e2a\u503c\u4f1a\u6c38\u4e45\u6027\u7684\u7834\u574f\u6570\u636e\u6587\u4ef6,\u5728MySQL 5.6.15\u4e4b\u540e,\u4f1a\u8bbe\u7f6eInnoDB\u4e3a\u53ea\u8bfb\u6a21\u5f0f;
\n 6.6(SRV_FORCE_NO_LOG_REDO):\u5728\u5b9e\u4f8b\u6062\u590d\u65f6\u4e0d\u4f1a\u524d\u6edaREDO\u65e5\u5fd7;\u8fd9\u4e2a\u503c\u4f1a\u6c38\u4e45\u6027\u7684\u7834\u574f\u6570\u636e\u6587\u4ef6,\u4f7f\u6570\u636e\u5e93\u7684\u9875\u4e3a\u8fc7\u671f\u72b6\u6001;\u5728MySQL 5.6.15\u4e4b\u540e,\u4f1a\u8bbe\u7f6eInnoDB\u4e3a\u53ea\u8bfb\u6a21\u5f0f;
\n 2.\u5f53\u5728–innodb_force_recovery\u8bbe\u7f6e\u4e3a\u975e\u96f6\u503c\u7684\u60c5\u51b5\u4e0b\u542f\u52a8\u670d\u52a1\u5668\u65f6,InnoDB\u5c06\u963b\u6b62INSERT,UPDATE\u6216DELETE\u64cd\u4f5c;\u56e0\u6b64,\u60a8\u5e94\u8f6c\u50a8InnoDB\u8868,\u7136\u540e\u5728\u8be5\u9009\u9879\u751f\u6548\u65f6\u5c06\u8fd9\u4e9b\u8868\u5220\u9664,\u518d\u5728\u4e0d\u4f7f\u7528–innodb_force_recovery\u9009\u9879\u7684\u60c5\u51b5\u4e0b\u91cd\u65b0\u542f\u52a8\u670d\u52a1\u5668;\u670d\u52a1\u5668\u542f\u52a8\u4e4b\u540e,\u5c06\u4ece\u8f6c\u50a8\u6587\u4ef6\u6062\u590dInnoDB\u8868;
\n 3.\u5982\u679c\u524d\u8ff0\u6b65\u9aa4\u5931\u8d25,\u5219\u4ece\u524d\u4e00\u4e2a\u5907\u4efd\u6062\u590d\u8868;
\n5.\u4f7f\u7528ALTER TABLE\u8fdb\u884c\u4f18\u5316\u65f6,\u5c06\u91cd\u6784\u8868\u5e76\u91ca\u653e\u7fa4\u96c6\u7d22\u5f15\u4e2d\u672a\u4f7f\u7528\u7684\u7a7a\u95f4;<\/p>\n
\n1.\u4f7f\u7528CHECK TABLE…MEDIUM(\u9ed8\u8ba4\u9009\u9879):
\n 1.\u5bf9\u4e8e\u52a8\u6001\u683c\u5f0f\u8868\u548c\u9759\u6001\u683c\u5f0f\u8868,\u9ed8\u8ba4\u7684CHECK TABLE\u68c0\u67e5\u7c7b\u578b\u5747\u4e3aMEDIUM;\u5982\u679c\u5c06\u9759\u6001\u683c\u5f0f\u8868\u7c7b\u578b\u8bbe\u7f6e\u4e3aCHANGED\u6216FAST,\u5219\u9ed8\u8ba4\u9009\u9879\u4e3aQUICK;\u5bf9\u4e8eCHANGED\u548cFAST,\u5c06\u8df3\u8fc7\u884c\u626b\u63cf,\u56e0\u4e3a\u8fd9\u4e9b\u884c\u5f88\u5c11\u635f\u574f;
\n 1.\u5982\u679c\u8868\u88ab\u6807\u8bb0\u4e3a\u201c\u5df2\u635f\u574f\u201d\u6216\u201c\u672a\u6b63\u5e38\u5173\u95ed\u201d,\u5219CHECK TABLE\u5c06\u66f4\u6539\u8868;
\n 2.\u5982\u679c\u672a\u5728\u8868\u4e2d\u53d1\u73b0\u4efb\u4f55\u95ee\u9898,\u5219\u4f1a\u5c06\u8868\u7684\u72b6\u6001\u6807\u8bb0\u4e3a\u201c\u6700\u65b0\u201d;
\n 3.\u5982\u679c\u8868\u5df2\u635f\u574f,\u5219\u95ee\u9898\u6700\u6709\u53ef\u80fd\u5b58\u5728\u4e8e\u7d22\u5f15\u800c\u4e0d\u662f\u6570\u636e\u4e2d;
\n 2.\u4f7f\u7528\u5ba2\u6237\u673a\u7a0b\u5e8f\u8fd0\u884cmyisamchk:shell> myisamchk –medium-check
\n 3.\u8868\u635f\u574f\u901a\u5e38\u53d1\u751f\u5728\u7d22\u5f15\u4e2d,\u56e0\u800c\u6267\u884c\u8fd9\u4e9b\u68c0\u67e5\u5f88\u6709\u5e2e\u52a9;
\n 4.\u5982\u679c\u8868\u5df2\u635f\u574f,\u5219\u5b9e\u7528\u7a0b\u5e8f\u5c06\u4fee\u590d\u8be5\u8868;
\n2.\u8bbe\u7f6e\u670d\u52a1\u5668\u4ee5\u8fd0\u884c\u68c0\u67e5\u5e76\u81ea\u52a8\u4fee\u590d\u8868:
\n 1.\u4f7f\u7528–myisam-recover\u9009\u9879\u542f\u7528\u81ea\u52a8\u4fee\u590d;\u9009\u9879\u503c\u53ef\u4ee5\u5305\u542b\u4ee5\u9017\u53f7\u5206\u9694\u7684\u503c\u5217\u8868,\u7531\u4ee5\u4e0b\u4e00\u4e2a\u6216\u591a\u4e2a\u503c\u7ec4\u6210:
\n 1.DEFAULT:\u9ed8\u8ba4\u68c0\u67e5;
\n 2.BACKUP:\u6307\u793a\u670d\u52a1\u5668\u5bf9\u5fc5\u987b\u8fdb\u884c\u66f4\u6539\u7684\u6240\u6709\u8868\u8fdb\u884c\u5907\u4efd;
\n 3.FORCE:\u6267\u884c\u8868\u6062\u590d,\u5373\u4f7f\u53ef\u80fd\u5bfc\u81f4\u591a\u884c\u6570\u636e\u4e22\u5931\u4e5f\u662f\u5982\u6b64;
\n 4.QUICK:\u6267\u884c\u5feb\u901f\u6062\u590d;\u6062\u590d\u5c06\u8df3\u8fc7\u4e00\u4e9b\u4e0d\u5305\u542b\u56e0\u5220\u9664\u6216\u66f4\u65b0\u800c\u4ea7\u751f\u7684\u884c\u95f4\u9694(\u4e5f\u79f0\u4e3a\u201c\u6d1e\u201d)\u7684\u8868;
\n 2.\u670d\u52a1\u5668\u5c06\u5728\u542f\u52a8\u4e4b\u540e\u7b2c\u4e00\u6b21\u8bbf\u95ee\u6bcf\u4e2aMyISAM\u8868\u65f6\u8fdb\u884c\u68c0\u67e5,\u4ee5\u786e\u4fdd\u8fd9\u4e9b\u8868\u524d\u4e00\u6b21\u6b63\u786e\u5173\u95ed;
\n3.\u5f3a\u5236\u4ececonfig\u6587\u4ef6\u6062\u590dMyISAM\u8868;
\neg:\u8981\u6307\u793a\u670d\u52a1\u5668\u5bf9\u53d1\u73b0\u95ee\u9898\u7684MyISAM\u8868\u6267\u884c\u5f3a\u5236\u6062\u590d,\u4f46\u540c\u65f6\u8981\u5907\u4efd\u5176\u66f4\u6539\u7684\u6240\u6709\u8868,\u8bf7\u5411\u9009\u9879\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9:
\n[mysqld] myisam-recover=FORCE,BACKUP;<\/p>\n
\nMySQL\u5728\u521b\u5efa\u8868\u7684\u65f6\u5019\u5b9a\u4e49\u8868\u7684\u6027\u8d28,\u5171\u6709\u4e09\u79cd\u72b6\u6001:\u9759\u6001\u8868,\u52a8\u6001\u8868,\u538b\u7f29\u8868;
\n1.\u9ed8\u8ba4\u662f\u9759\u6001\u8868;
\n2.\u52a8\u6001\u8868:\u5982\u679c\u5b58\u5728varchar,blob,text\u5b57\u6bb5,\u8868\u7c7b\u578b\u5c31\u662f\u52a8\u6001\u8868;
\n3.\u538b\u7f29\u8868:\u53ea\u8bfb,\u4f7f\u7528\u5f88\u5c11\u7684\u7a7a\u95f4,\u4f7f\u7528myisampack\u5de5\u5177\u521b\u5efa;<\/p>\n
\n1.\u4f7f\u7528DELETE…WHERE\u8bed\u53e5\u5220\u9664\u591a\u4e2a\u884c\u65f6,MEMORY\u8868\u4e0d\u4f1a\u91ca\u653e\u5185\u5b58;
\n2.\u8981\u91ca\u653e\u5185\u5b58,\u5fc5\u987b\u6267\u884c\u7a7a\u503cALTER TABLE\u64cd\u4f5c;<\/p>\n
\n1.ARCHIVE\u538b\u7f29\u95ee\u9898:
\n 1.\u63d2\u5165\u8868\u884c\u65f6\u5c06\u5bf9\u5176\u8fdb\u884c\u538b\u7f29;
\n 2.\u68c0\u7d22\u65f6,\u5c06\u6839\u636e\u9700\u8981\u5bf9\u884c\u8fdb\u884c\u89e3\u538b\u7f29;
\n 3.\u4e00\u4e9bSELECT\u8bed\u53e5\u53ef\u80fd\u4f1a\u51cf\u5f31\u538b\u7f29\u529f\u80fd;
\n2.\u4f7f\u7528OPTIMIZE TABLE\u6216REPAIR TABLE\u53ef\u4ee5\u5b9e\u73b0\u66f4\u597d\u7684\u538b\u7f29;
\n3.\u5728\u672a\u5bf9\u8868\u8fdb\u884c\u8bbf\u95ee(\u8bfb\u6216\u5199)\u65f6,OPTIMIZE TABLE\u6709\u6548;<\/p>\n
\n<\/table_name><\/db_name><\/dump_file><\/table_name><\/db_name><\/p>\n","protected":false},"excerpt":{"rendered":"