{"id":199626,"date":"2025-05-06T10:00:07","date_gmt":"2025-05-06T02:00:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199626\/"},"modified":"2025-05-06T10:00:07","modified_gmt":"2025-05-06T02:00:07","slug":"%e6%b7%b1%e5%85%a5%e6%8e%a2%e7%a9%b6-mysql-%e9%94%81%e6%9c%ba%e5%88%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199626\/","title":{"rendered":"\u6df1\u5165\u63a2\u7a76 MySQL \u9501\u673a\u5236"},"content":{"rendered":"

<\/b> <\/p>\n

\u6df1\u5165\u63a2\u7a76 MySQL \u9501\u673a\u5236<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300a\u6df1\u5165\u63a2\u7a76 MySQL \u9501\u673a\u5236\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n

\u6df1\u5165\u7406\u89e3 MySQL \u9501\u673a\u5236\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/p>\n

MySQL \u662f\u5f53\u4eca\u6700\u6d41\u884c\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e4b\u4e00\uff0c\u5176\u4f18\u79c0\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u4f7f\u5f97\u5b83\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u4e2a\u884c\u4e1a\u7684\u6570\u636e\u5b58\u50a8\u548c\u7ba1\u7406\u3002\u5728\u591a\u7528\u6237\u5e76\u53d1\u8bbf\u95ee\u7684\u60c5\u51b5\u4e0b\uff0cMySQL \u7684\u9501\u673a\u5236\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\uff0c\u5b83\u80fd\u591f\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8 MySQL \u9501\u7684\u5206\u7c7b\u3001\u4f7f\u7528\u573a\u666f\u4ee5\u53ca\u76f8\u5173\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

MySQL \u4e2d\u7684\u9501\u53ef\u4ee5\u5206\u4e3a\u4e24\u4e2a\u5c42\u6b21\uff1a\u8868\u7ea7\u9501\u548c\u884c\u7ea7\u9501\u3002\u8868\u7ea7\u9501\u662f\u5bf9\u6574\u4e2a\u8868\u8fdb\u884c\u9501\u5b9a\uff0c\u5b83\u7684\u7c92\u5ea6\u8f83\u5927\uff0c\u9002\u7528\u4e8e\u5bf9\u6574\u4e2a\u8868\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u7684\u60c5\u51b5\u3002\u800c\u884c\u7ea7\u9501\u5219\u662f\u5bf9\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u8fdb\u884c\u9501\u5b9a\uff0c\u7c92\u5ea6\u66f4\u5c0f\uff0c\u9002\u7528\u4e8e\u5bf9\u8868\u4e2d\u67d0\u4e00\u90e8\u5206\u6570\u636e\u8fdb\u884c\u5e76\u53d1\u64cd\u4f5c\u7684\u60c5\u51b5\u3002<\/p>\n

\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u5f80\u5f80\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u4e1a\u52a1\u9700\u6c42\u6765\u9009\u62e9\u9002\u5f53\u7684\u9501\u673a\u5236\u3002\u4e0b\u9762\u901a\u8fc7\u51e0\u4e2a\u573a\u666f\u6765\u8be6\u7ec6\u4ecb\u7ecd MySQL \u9501\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

    \n
  1. \u8868\u7ea7\u9501\u7684\u4f7f\u7528<\/li>\n<\/ol>\n
    -- \u6267\u884c\u4ee5\u4e0b\u8bed\u53e5\uff0c\u5bf9\u6574\u4e2a\u8868\u8fdb\u884c\u9501\u5b9a\nLOCK TABLES users WRITE;\n\n-- \u6267\u884c\u76f8\u5173\u7684\u64cd\u4f5c\n\n-- \u91ca\u653e\u9501\nUNLOCK TABLES;<\/pre>\n
    \u5728\u4ee5\u4e0a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 LOCK TABLES<\/code> \u5bf9\u8868 users<\/code> \u8fdb\u884c\u4e86\u5199\u9501\u5b9a\uff0c\u8be5\u547d\u4ee4\u5c06\u963b\u585e\u5176\u4ed6\u7528\u6237\u5bf9\u8be5\u8868\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u5f53\u64cd\u4f5c\u5b8c\u6210\u540e\uff0c\u4f7f\u7528 UNLOCK TABLES<\/code> \u91ca\u653e\u9501\u3002<\/p>\n
      \n
    1. \u884c\u7ea7\u9501\u7684\u4f7f\u7528<\/li>\n<\/ol>\n
      -- \u6267\u884c\u4ee5\u4e0b\u8bed\u53e5\uff0c\u5bf9\u8868\u4e2d\u7684\u67d0\u4e00\u884c\u8fdb\u884c\u9501\u5b9a\nSELECT * FROM users WHERE id = 1 FOR UPDATE;\n\n-- \u6267\u884c\u76f8\u5173\u7684\u64cd\u4f5c\n\n-- \u63d0\u4ea4\u4e8b\u52a1\u540e\uff0c\u9501\u4f1a\u81ea\u52a8\u91ca\u653e\nCOMMIT;<\/pre>\n
      \u5728\u4ee5\u4e0a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 SELECT ... FOR UPDATE<\/code> \u67e5\u8be2\u8bed\u53e5\u5bf9\u8868 users<\/code> \u4e2d id<\/code> \u4e3a 1 \u7684\u884c\u8fdb\u884c\u4e86\u9501\u5b9a\u3002\u8be5\u8bed\u53e5\u4f1a\u5c06\u8be5\u884c\u7684\u5199\u9501\u5b9a\uff0c\u4ee5\u786e\u4fdd\u5728\u4e8b\u52a1\u5b8c\u6210\u4e4b\u524d\u5176\u4ed6\u7528\u6237\u65e0\u6cd5\u4fee\u6539\u8be5\u884c\u7684\u6570\u636e\u3002<\/p>\n
        \n
      1. \u6b7b\u9501\u7684\u5904\u7406<\/li>\n<\/ol>\n
        \u6b7b\u9501\u662f\u6307\u4e24\u4e2a\u6216\u591a\u4e2a\u4e8b\u52a1\u5f7c\u6b64\u7b49\u5f85\u5bf9\u65b9\u91ca\u653e\u9501\u800c\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\u7684\u60c5\u51b5\u3002\u4e3a\u4e86\u9632\u6b62\u6b7b\u9501\u7684\u53d1\u751f\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 innodb_deadlock_detect<\/code> \u548c innodb_deadlock_detect_interval<\/code> \u53c2\u6570\u8fdb\u884c\u8bbe\u7f6e\u3002<\/p>\n
        -- \u8bbe\u7f6e\u6b7b\u9501\u68c0\u6d4b\nSET innodb_deadlock_detect = ON;\n\n-- \u8bbe\u7f6e\u6b7b\u9501\u68c0\u6d4b\u95f4\u9694\nSET innodb_deadlock_detect_interval = 1000;<\/pre>\n
        \u4ee5\u4e0a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u8bbe\u7f6e\u53c2\u6570 innodb_deadlock_detect<\/code> \u548c innodb_deadlock_detect_interval<\/code> \u6765\u5f00\u542f\u6b7b\u9501\u68c0\u6d4b\u673a\u5236\u5e76\u8bbe\u7f6e\u68c0\u6d4b\u95f4\u9694\u4e3a 1000 \u6beb\u79d2\u3002<\/p>\n
        \u603b\u7ed3\uff1a<\/p>\n
        MySQL \u9501\u673a\u5236\u662f\u4fdd\u8bc1\u591a\u7528\u6237\u5e76\u53d1\u8bbf\u95ee\u4e0b\u6570\u636e\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u91cd\u8981\u624b\u6bb5\uff0c\u901a\u8fc7\u6b63\u786e\u7684\u4f7f\u7528\u9501\u673a\u5236\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u6570\u636e\u51b2\u7a81\u548c\u6b7b\u9501\u95ee\u9898\u3002\u5728\u9009\u62e9\u5408\u9002\u7684\u9501\u673a\u5236\u65f6\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u6765\u8fdb\u884c\u7efc\u5408\u8003\u8651\u3002\u540c\u65f6\uff0c\u5bf9\u4e8e\u6b7b\u9501\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u76f8\u5e94\u7684\u53c2\u6570\u6765\u5bf9\u5176\u8fdb\u884c\u76d1\u63a7\u548c\u5904\u7406\u3002<\/p>\n
        \u901a\u8fc7\u4ee5\u4e0a\u4ee3\u7801\u793a\u4f8b\u548c\u89e3\u6790\uff0c\u76f8\u4fe1\u8bfb\u8005\u5df2\u7ecf\u5bf9 MySQL \u9501\u673a\u5236\u6709\u4e86\u66f4\u6df1\u5165\u7684\u7406\u89e3\u3002\u5728\u5b9e\u9645\u5e94\u7528\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u5408\u7406\u4f7f\u7528\u9501\u673a\u5236\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u5b83\u4e0d\u4ec5\u80fd\u591f\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\uff0c\u8fd8\u80fd\u591f\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\u6027\u3002\u5e0c\u671b\u8bfb\u8005\u80fd\u591f\u6839\u636e\u81ea\u8eab\u9700\u6c42\uff0c\u5408\u7406\u8fd0\u7528 MySQL \u9501\u673a\u5236\uff0c\u63d0\u5347\u5e94\u7528\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n
        \u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u6df1\u5165\u63a2\u7a76 MySQL \u9501\u673a\u5236\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6570\u636e\u5e93\u77e5\u8bc6\uff01<\/p>\n
        \n
        \n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
        \u6df1\u5165\u63a2\u7a76 MySQL \u9501\u673a\u5236 \u672c...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199626","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199626","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199626"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199626\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199626"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199626"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}