InnoDB\u4e2d\uff0c\u8868\u6570\u636e\u6587\u4ef6\u672c\u8eab\u5c31\u662f\u6309B+Tree\u7ec4\u7ec7\u7684\u4e00\u4e2a\u7d22\u5f15\u7ed3\u6784\uff0c\u805a\u7c07\u7d22\u5f15\u5c31\u662f\u6309\u7167\u6bcf\u5f20\u8868\u7684\u4e3b\u952e\u6784\u9020\u4e00\u9897B+\u6811\uff0c\u540c\u65f6\u53f6\u5b50\u8282\u70b9\u4e2d\u5b58\u653e\u7684\u5c31\u662f\u6574\u5f20\u8868\u7684\u884c\u8bb0\u5f55\u6570\u636e\uff0c\u4e5f\u5c06\u805a\u96c6\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u79f0\u4e3a\u6570\u636e\u9875\u3002\u8fd9\u4e2a\u7279\u6027\u51b3\u5b9a\u4e86\u7d22\u5f15\u7ec4\u7ec7\u8868\u4e2d\u6570\u636e\u4e5f\u662f\u7d22\u5f15\u7684\u4e00\u90e8\u5206\uff1b
\n\u4e00\u822c\u5efa\u8868\u4f1a\u7528\u4e00\u4e2a\u81ea\u589e\u4e3b\u952e\u505a\u805a\u7c07\u7d22\u5f15\uff0c\u6ca1\u6709\u7684\u8bddMySQL\u4f1a\u9ed8\u8ba4\u521b\u5efa\uff0c\u4f46\u662f\u8fd9\u4e2a\u4e3b\u952e\u5982\u679c\u66f4\u6539\u4ee3\u4ef7\u8f83\u9ad8\uff0c\u6545\u5efa\u8868\u65f6\u8981\u8003\u8651\u81ea\u589eID\u4e0d\u80fd\u9891\u7e41update\u8fd9\u70b9\u3002
\n\u6211\u4eec\u65e5\u5e38\u5de5\u4f5c\u4e2d\uff0c\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u81ea\u884c\u6dfb\u52a0\u7684\u7d22\u5f15\u90fd\u662f\u8f85\u52a9\u7d22\u5f15\uff0c\u8f85\u52a9\u7d22\u5f15\u5c31\u662f\u4e00\u4e2a\u4e3a\u4e86\u9700\u627e\u4e3b\u952e\u7d22\u5f15\u7684\u4e8c\u7ea7\u7d22\u5f15\uff0c\u73b0\u5728\u627e\u5230\u4e3b\u952e\u7d22\u5f15\u518d\u901a\u8fc7\u4e3b\u952e\u7d22\u5f15\u627e\u6570\u636e\uff1b
\n\u805a\u7c07\u7d22\u5f15\uff08\u805a\u96c6\u7d22\u5f15\uff09
\n\u805a\u7c07\u7d22\u5f15\u5c31\u662f\u6309\u7167\u6bcf\u5f20\u8868\u7684\u4e3b\u952e\u6784\u9020\u4e00\u9897B+\u6811\uff0c\u540c\u65f6\u53f6\u5b50\u8282\u70b9\u4e2d\u5b58\u653e\u7684\u5c31\u662f\u6574\u5f20\u8868\u7684\u884c\u8bb0\u5f55\u6570\u636e\uff0c\u4e5f\u5c06\u805a\u96c6\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u79f0\u4e3a\u6570\u636e\u9875\u3002\u8fd9\u4e2a\u7279\u6027\u51b3\u5b9a\u4e86\u7d22\u5f15\u7ec4\u7ec7\u8868\u4e2d\u6570\u636e\u4e5f\u662f\u7d22\u5f15\u7684\u4e00\u90e8\u5206\uff0c\u6bcf\u5f20\u8868\u53ea\u80fd\u62e5\u6709\u4e00\u4e2a\u805a\u7c07\u7d22\u5f15\u3002
\nInnodb\u901a\u8fc7\u4e3b\u952e\u805a\u96c6\u6570\u636e\uff0c\u5982\u679c\u6ca1\u6709\u5b9a\u4e49\u4e3b\u952e\uff0cinnodb\u4f1a\u9009\u62e9\u975e\u7a7a\u7684\u552f\u4e00\u7d22\u5f15\u4ee3\u66ff\u3002\u5982\u679c\u6ca1\u6709\u8fd9\u6837\u7684\u7d22\u5f15\uff0cinnodb\u4f1a\u9690\u5f0f\u7684\u5b9a\u4e49\u4e00\u4e2a\u4e3b\u952e\u6765\u4f5c\u4e3a\u805a\u7c07\u7d22\u5f15\u3002
\n\u805a\u7c07\u7d22\u5f15\u7684\u4f18\u7f3a\u70b9
\n\u4f18\u70b9\uff1a
\n1\u3001\t\u6570\u636e\u8bbf\u95ee\u66f4\u5feb\uff0c\u56e0\u4e3a\u805a\u7c07\u7d22\u5f15\u5c06\u7d22\u5f15\u548c\u6570\u636e\u4fdd\u5b58\u5728\u540c\u4e00\u4e2aB+\u6811\u4e2d\uff0c\u56e0\u6b64\u4ece\u805a\u7c07\u7d22\u5f15\u4e2d\u83b7\u53d6\u6570\u636e\u6bd4\u975e\u805a\u7c07\u7d22\u5f15\u66f4\u5feb
\n2,\u805a\u7c07\u7d22\u5f15\u5bf9\u4e8e\u4e3b\u952e\u7684\u6392\u5e8f\u67e5\u627e\u548c\u8303\u56f4\u67e5\u627e\u901f\u5ea6\u975e\u5e38\u5feb
\n\u7f3a\u70b9\uff1a
\n1\u3001\t\u63d2\u5165\u901f\u5ea6\u4e25\u91cd\u4f9d\u8d56\u4e8e\u63d2\u5165\u987a\u5e8f\uff0c\u6309\u7167\u4e3b\u952e\u7684\u987a\u5e8f\u63d2\u5165\u662f\u6700\u5feb\u7684\u65b9\u5f0f\uff0c\u5426\u5219\u5c06\u4f1a\u51fa\u73b0\u9875\u5206\u88c2, \u4e25\u91cd\u5f71\u54cd\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5bf9\u4e8eInnoDB\u8868\uff0c\u6211\u4eec\u4e00\u822c\u90fd\u4f1a\u5b9a\u4e49\u4e00\u4e2a\u81ea\u589e\u7684ID\u5217\u4e3a\u4e3b\u952e
\n2\u3001\t\u66f4\u65b0\u4e3b\u952e\u7684\u4ee3\u4ef7\u5f88\u9ad8\uff0c\u56e0\u4e3a\u5c06\u4f1a\u5bfc\u81f4\u88ab\u66f4\u65b0\u7684\u884c\u79fb\u52a8\u3002\u56e0\u6b64\uff0c\u5bf9\u4e8eInnoDB\u8868\uff0c\u6211\u4eec\u4e00\u822c\u5b9a\u4e49\u4e3b\u952e\u4e3a\u4e0d\u53ef\u66f4\u65b0\u3002
\n3\u3001\t\u4e8c\u7ea7\u7d22\u5f15\u8bbf\u95ee\u9700\u8981\u4e24\u6b21\u7d22\u5f15\u67e5\u627e\uff0c\u7b2c\u4e00\u6b21\u627e\u5230\u4e3b\u952e\u503c\uff0c\u7b2c\u4e8c\u6b21\u6839\u636e\u4e3b\u952e\u503c\u627e\u5230\u884c\u6570\u636e\u3002
\n\u8f85\u52a9\u7d22\u5f15\uff08\u975e\u805a\u7c07\u7d22\u5f15\uff09
\n\u5728\u805a\u7c07\u7d22\u5f15\u4e4b\u4e0a\u521b\u5efa\u7684\u7d22\u5f15\u79f0\u4e4b\u4e3a\u8f85\u52a9\u7d22\u5f15\uff0c\u8f85\u52a9\u7d22\u5f15\u8bbf\u95ee\u6570\u636e\u603b\u662f\u9700\u8981\u4e8c\u6b21\u67e5\u627e\u3002\u8f85\u52a9\u7d22\u5f15\u53f6\u5b50\u8282\u70b9\u5b58\u50a8\u7684\u4e0d\u518d\u662f\u884c\u7684\u7269\u7406\u4f4d\u7f6e\uff0c\u800c\u662f\u4e3b\u952e\u503c\u3002\u901a\u8fc7\u8f85\u52a9\u7d22\u5f15\u9996\u5148\u627e\u5230\u7684\u662f\u4e3b\u952e\u503c\uff0c\u518d\u901a\u8fc7\u4e3b\u952e\u503c\u627e\u5230\u6570\u636e\u884c\u7684\u6570\u636e\u9875\uff0c\u518d\u901a\u8fc7\u6570\u636e\u9875\u4e2d\u7684Page Directory\u627e\u5230\u6570\u636e\u884c\u3002
\nInnodb\u8f85\u52a9\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u5e76\u4e0d\u5305\u542b\u884c\u8bb0\u5f55\u7684\u5168\u90e8\u6570\u636e\uff0c\u53f6\u5b50\u8282\u70b9\u9664\u4e86\u5305\u542b\u952e\u503c\u5916\uff0c\u8fd8\u5305\u542b\u4e86\u76f8\u5e94\u884c\u6570\u636e\u7684\u805a\u7c07\u7d22\u5f15\u952e\u3002
\n\u8f85\u52a9\u7d22\u5f15\u7684\u5b58\u5728\u4e0d\u5f71\u54cd\u6570\u636e\u5728\u805a\u7c07\u7d22\u5f15\u4e2d\u7684\u7ec4\u7ec7\uff0c\u6240\u4ee5\u4e00\u5f20\u8868\u53ef\u4ee5\u6709\u591a\u4e2a\u8f85\u52a9\u7d22\u5f15\u3002\u5728innodb\u4e2d\u6709\u65f6\u4e5f\u79f0\u8f85\u52a9\u7d22\u5f15\u4e3a\u4e8c\u7ea7\u7d22\u5f15\u3002
\nMySQL\u4e2d\u5907\u4efd\u8ba1\u5212\uff0cMySQLdump\u4ee5\u53caxtrabackup\u7684\u5b9e\u73b0\u539f\u7406\uff1f
\n\u5907\u4efd\u8ba1\u5212
\n1\u3001\t\u89c6\u5e93\u7684\u5927\u5c0f\u6765\u5b9a,\u4e00\u822c\u6765\u8bf4100G\u5185\u7684\u5e93\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528MySQLdump\u6765\u505a\uff0c\u56e0\u4e3aMySQLdump\u66f4\u52a0\u8f7b\u5de7\u7075\u6d3b\uff0c\u5907\u4efd\u65f6\u95f4\u9009\u5728\u4e1a\u52a1\u4f4e\u5cf0\u671f\uff0c\u53ef\u4ee5\u6bcf\u5929\u8fdb\u884c\u90fd\u8fdb\u884c\u5168\u91cf\u5907\u4efd(MySQLdump\u5907\u4efd\u51fa\u6765\u7684\u6587\u4ef6\u6bd4\u8f83\u5c0f\uff0c\u538b\u7f29\u4e4b\u540e\u66f4\u5c0f)\u3002
\n2\u3001\t100G\u4ee5\u4e0a\u7684\u5e93\uff0c\u53ef\u4ee5\u8003\u8651\u7528xtrabackup\u6765\u505a\uff0c\u5907\u4efd\u901f\u5ea6\u660e\u663e\u8981\u6bd4MySQLdump\u8981\u5feb\u3002\u4e00\u822c\u662f\u9009\u62e9\u4e00\u5468\u4e00\u4e2a\u5168\u5907\uff0c\u5176\u4f59\u6bcf\u5929\u8fdb\u884c\u589e\u91cf\u5907\u4efd\uff0c\u5907\u4efd\u65f6\u95f4\u4e3a\u4e1a\u52a1\u4f4e\u5cf0\u671f\u3002
\n\u5907\u4efd\u6062\u590d\u65f6\u95ee
\n1\u3001\t\u7269\u7406\u5907\u4efd\u6062\u590d\u5feb\uff0c\u903b\u8f91\u5907\u4efd\u6062\u590d\u6162
\n2\u3001\t\u8fd9\u91cc\u8ddf\u673a\u5668\uff0c\u5c24\u5176\u662f\u786c\u76d8\u7684\u901f\u7387\u6709\u5173\u7cfb\uff0c\u4ee5\u4e0b\u5217\u4e3e\u51e0\u4e2a\u4ec5\u4f9b\u53c2\u8003
\n3\u3001\t20G \u7684 2 \u5206\u949f(MySQLdump)
\n4\u3001\t80G \u7684 30 \u5206\u949f(MySQLdump)
\n5\u3001\t111G \u7684 30 \u5206\u949f(MySQLdump)
\n6\u3001\t288G \u7684 3 \u5c0f\u65f6(xtra)
\n7\u3001\t3T \u7684 4 \u5c0f\u65f6(xtra)
\n8\u3001\t\u903b\u8f91\u5bfc\u5165\u65f6\u95f4\u4e00\u822c\u662f\u5907\u4efd\u65f6\u95f4\u76845\u500d\u4ee5\u4e0a
\n\u5907\u4efd\u6062\u590d\u5931\u8d25\u5982\u4f55\u5904\u7406
\n\u9996\u5148\u5728\u6062\u590d\u4e4b\u524d\u5c31\u5e94\u8be5\u505a\u8db3\u51c6\u5907\u5de5\u4f5c\uff0c\u907f\u514d\u6062\u590d\u7684\u65f6\u5019\u51fa\u9519\u3002\u6bd4\u5982\u8bf4\u5907\u4efd\u4e4b\u540e\u7684\u6709\u6548\u6027\u68c0\u67e5\u3001\u6743\u9650\u68c0\u67e5\u3001\u7a7a\u95f4\u68c0\u67e5\u7b49\u3002\u5982\u679c\u4e07\u4e00\u62a5\u9519\uff0c\u518d\u6839\u636e\u62a5\u9519\u7684\u63d0\u793a\u6765\u8fdb\u884c\u76f8\u5e94\u7684\u8c03\u6574\u3002
\nMySQLdump \u548c xtrabackup \u5b9e\u73b0\u539f\u7406<\/p>\n
MySQLdump
\nMySQLdump\u5c5e\u4e8e\u903b\u8f91\u5907\u4efd\u3002\u52a0\u5165-single-transaction\u9009\u9879\u53ef\u4ee5\u8fdb\u884c\u4e00\u81f4\u6027\u5907\u4efd\u3002\u540e\u53f0\u8fdb\u7a0b\u4f1a\u5148\u8bbe\u7f6e session \u7684\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u4e3a RR(SET SESSION TRANSACTION ISOLATION LEVELREPEATABLE READ),\u4e4b\u540e\u663e\u5f0f\u5f00\u542f\u4e00\u4e2a\u4e8b\u52a1(START TRANSACTION \/\uff0140100 WITH CONSISTENTSNAPSHOT \/),\u8fd9\u6837\u5c31\u4fdd\u8bc1\u4e86\u8be5\u4e8b\u52a1\u91cc\u8bfb\u5230\u7684\u6570\u636e\u90fd\u662f\u4e8b\u52a1\u4e8b\u52a1\u65f6\u5019\u7684\u5feb\u7167\u3002\u4e4b\u540e\u518d\u628a\u8868\u7684\u6570\u636e\u8bfb\u53d6\u51fa\u6765\u3002\u5982\u679c\u52a0\u4e0a- master-data=l\u7684\u8bdd\uff0c\u5728\u521a\u5f00\u59cb\u7684\u65f6\u5019\u8fd8\u4f1a\u52a0\u4e00\u4e2a\u6570\u636e\u5e93\u7684\u8bfb\u9501(FLUSH TABLES WITH READ LOCK),\u7b49\u5f00\u542f\u4e8b\u52a1\u540e\uff0c\u518d\u8bb0\u5f55\u4e0b\u6570\u636e\u5e93\u6b64\u65f6binlog\u7684\u4f4d\u7f6e(showmaster status),\u9a6c\u4e0a\u89e3\u9501\uff0c\u518d\u8bfb\u53d6\u8868\u7684\u6570\u636e\u3002\u7b49\u6240\u6709\u7684\u6570\u636e\u90fd\u5df2\u7ecf\u5bfc\u5b8c\uff0c\u5c31\u53ef\u4ee5\u7ed3\u675f\u4e8b\u52a1
\nXtrabackup\uff1a
\nxtrabackup\u5c5e\u4e8e\u7269\u7406\u5907\u4efd\uff0c\u76f4\u63a5\u62f7\u8d1d\u8868\u7a7a\u95f4\u6587\u4ef6\uff0c\u540c\u65f6\u4e0d\u65ad\u626b\u63cf\u4ea7\u751f\u7684redo\u65e5\u5fd7\u5e76\u4fdd\u5b58\u4e0b\u6765\u3002\u6700\u540e\u5b8c\u6210innodb\u7684\u5907\u4efd\u540e\uff0c\u4f1a\u505a\u4e00\u4e2aflush engine logs\u7684\u64cd\u4f5c(\u8001\u7248\u672c\u5728\u6709bug,\u57285.6\u4e0a\u4e0d\u505a\u6b64\u64cd\u4f5c\u4f1a\u4e22\u6570\u636e)\uff0c\u786e\u4fdd\u6240\u6709\u7684redo log\u90fd\u5df2\u7ecf\u843d\u76d8(\u6d89\u53ca\u5230\u4e8b\u52a1\u7684\u4e24\u9636\u6bb5\u63d0\u4ea4\u6982\u5ff5\uff0c\u56e0\u4e3axtrabackup\u5e76\u4e0d\u62f7\u8d1dbinlog,\u6240\u4ee5\u5fc5\u987b\u4fdd\u8bc1\u6240\u6709\u7684redo log\u90fd\u843d\u76d8\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u4e22\u6700\u540e\u4e00\u7ec4\u63d0\u4ea4\u4e8b\u52a1\u7684\u6570\u636e)\u3002\u8fd9\u4e2a\u65f6\u95f4\u70b9\u5c31\u662finnodb\u5b8c\u6210\u5907\u4efd\u7684\u65f6\u95f4\u70b9\uff0c\u6570\u636e\u6587\u4ef6\u867d\u7136\u4e0d\u662f\u4e00\u81f4\u6027\u7684\uff0c\u4f46\u662f\u6709\u8fd9\u6bb5\u65f6\u95f4\u7684redo\u5c31\u53ef\u4ee5\u8ba9\u6570\u636e\u6587\u4ef6\u8fbe\u5230\u4e00\u81f4\u6027(\u6062\u590d\u7684\u65f6\u5019\u505a\u7684\u4e8b\u60c5)\u3002\u7136\u540e\u8fd8\u9700\u8981flush tables with read lock,\u628amyisam\u7b49\u5176\u4ed6\u5f15\u64ce\u7684\u8868\u7ed9\u5907\u4efd\u51fa\u6765\uff0c\u5907\u4efd\u5b8c\u540e\u89e3\u9501\u3002\u8fd9\u6837\u5c31\u505a\u5230\u4e86\u5b8c\u7f8e\u7684\u70ed\u5907\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
InnoDB\u4e2d\uff0c\u8868\u6570\u636e\u6587\u4ef6\u672c\u8eab\u5c31\u662f\u6309B+Tree\u7ec4\u7ec7\u7684\u4e00\u4e2a\u7d22\u5f15\u7ed3\u6784\uff0c\u805a\u7c07\u7d22\u5f15\u5c31\u662f\u6309\u7167\u6bcf\u5f20\u8868\u7684\u4e3b\u952e\u6784\u9020\u4e00\u9897B+\u6811 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[102],"tags":[],"class_list":["post-8518","post","type-post","status-publish","format-standard","hentry","category-db"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=8518"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8518\/revisions"}],"predecessor-version":[{"id":8519,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8518\/revisions\/8519"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=8518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=8518"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=8518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}