{"id":180958,"date":"2024-11-09T14:36:17","date_gmt":"2024-11-09T06:36:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180958\/"},"modified":"2024-11-09T14:36:17","modified_gmt":"2024-11-09T06:36:17","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3mysql%e9%8e%96%e6%a9%9f%e5%88%b6%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180958\/","title":{"rendered":"\u6df1\u5165\u7406\u89e3MySQL\u9396\u6a5f\u5236\u539f\u7406"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3mysql%e9%8e%96%e6%a9%9f%e5%88%b6%e5%8e%9f%e7%90%86-fpDFBMUuzP\">\u6df1\u5165\u7406\u89e3MySQL\u9396\u6a5f\u5236\u539f\u7406<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u9396\u6a5f\u5236\u662f\u78ba\u4fdd\u8cc7\u6599\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u91cd\u8981\u624b\u6bb5\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u8cc7\u6599\u5eab\uff0c\u5176\u9396\u6a5f\u5236\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\u5c0d\u65bc\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMySQL\u7684\u9396\u6a5f\u5236\u539f\u7406\uff0c\u5305\u62ec\u9396\u7684\u985e\u578b\u3001\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e9%8e%96%e7%9a%84%e9%a1%9e%e5%9e%8b-fpDFBMUuzP\">\u9396\u7684\u985e\u578b<\/h2>\n<p>MySQL\u7684\u9396\u6a5f\u5236\u4e3b\u8981\u5206\u70ba\u4ee5\u4e0b\u5e7e\u7a2e\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>\u884c\u9396\uff08Row Lock\uff09<\/strong>\uff1a\u884c\u9396\u662f\u91dd\u5c0d\u8cc7\u6599\u8868\u4e2d\u7684\u55ae\u4e00\u884c\u9032\u884c\u9396\u5b9a\uff0c\u9019\u6a23\u53ef\u4ee5\u5141\u8a31\u5176\u4ed6\u4e8b\u52d9\u540c\u6642\u8a2a\u554f\u540c\u4e00\u8cc7\u6599\u8868\u4e2d\u7684\u5176\u4ed6\u884c\u3002\u884c\u9396\u901a\u5e38\u7528\u65bc\u9ad8\u4f75\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u3002<\/li>\n<li><strong>\u8868\u9396\uff08Table Lock\uff09<\/strong>\uff1a\u8868\u9396\u662f\u5c0d\u6574\u500b\u8cc7\u6599\u8868\u9032\u884c\u9396\u5b9a\uff0c\u9019\u610f\u5473\u8457\u5728\u9396\u5b9a\u671f\u9593\uff0c\u5176\u4ed6\u4e8b\u52d9\u7121\u6cd5\u5c0d\u8a72\u8868\u9032\u884c\u4efb\u4f55\u64cd\u4f5c\u3002\u8868\u9396\u7684\u958b\u92b7\u8f03\u5927\uff0c\u901a\u5e38\u5728\u9700\u8981\u9032\u884c\u5927\u91cf\u8b80\u53d6\u6216\u5beb\u5165\u64cd\u4f5c\u6642\u4f7f\u7528\u3002<\/li>\n<li><strong>\u610f\u5411\u9396\uff08Intent Lock\uff09<\/strong>\uff1a\u610f\u5411\u9396\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u9396\uff0c\u7528\u65bc\u6307\u793a\u4e8b\u52d9\u5c07\u8981\u5c0d\u67d0\u4e9b\u884c\u9032\u884c\u9396\u5b9a\u3002\u9019\u7a2e\u9396\u53ef\u4ee5\u5e6b\u52a9MySQL\u5728\u591a\u5c64\u9396\u5b9a\u4e2d\u9032\u884c\u66f4\u6709\u6548\u7684\u7ba1\u7406\u3002<\/li>\n<li><strong>\u5171\u4eab\u9396\uff08Shared Lock\uff09<\/strong>\uff1a\u5171\u4eab\u9396\u5141\u8a31\u591a\u500b\u4e8b\u52d9\u540c\u6642\u8b80\u53d6\u8cc7\u6599\uff0c\u4f46\u4e0d\u5141\u8a31\u4efb\u4f55\u4e8b\u52d9\u5c0d\u8cc7\u6599\u9032\u884c\u4fee\u6539\u3002<\/li>\n<li><strong>\u6392\u4ed6\u9396\uff08Exclusive Lock\uff09<\/strong>\uff1a\u6392\u4ed6\u9396\u5247\u4e0d\u5141\u8a31\u5176\u4ed6\u4e8b\u52d9\u8b80\u53d6\u6216\u4fee\u6539\u88ab\u9396\u5b9a\u7684\u8cc7\u6599\uff0c\u9019\u901a\u5e38\u7528\u65bc\u5beb\u5165\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%8e%96%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-fpDFBMUuzP\">\u9396\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>MySQL\u7684\u9396\u6a5f\u5236\u4e3b\u8981\u4f9d\u8cf4\u65bc\u5169\u7a2e\u9396\u5b9a\u6a21\u5f0f\uff1a\u81ea\u52d5\u9396\u5b9a\u548c\u986f\u5f0f\u9396\u5b9a\u3002<\/p>\n<h3 id=\"%e8%87%aa%e5%8b%95%e9%8e%96%e5%ae%9a-fpDFBMUuzP\">\u81ea\u52d5\u9396\u5b9a<\/h3>\n<p>\u5728\u5927\u591a\u6578\u60c5\u6cc1\u4e0b\uff0cMySQL\u6703\u81ea\u52d5\u70ba\u4e8b\u52d9\u4e2d\u7684\u64cd\u4f5c\u52a0\u9396\u3002\u4f8b\u5982\uff0c\u7576\u4e00\u500b\u4e8b\u52d9\u57f7\u884cINSERT\u3001UPDATE\u6216DELETE\u64cd\u4f5c\u6642\uff0cMySQL\u6703\u81ea\u52d5\u70ba\u53d7\u5f71\u97ff\u7684\u884c\u52a0\u4e0a\u6392\u4ed6\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u4e8b\u52d9\u5b8c\u6210\u4e4b\u524d\uff0c\u5176\u4ed6\u4e8b\u52d9\u7121\u6cd5\u5c0d\u9019\u4e9b\u884c\u9032\u884c\u4fee\u6539\u3002<\/p>\n<h3 id=\"%e9%a1%af%e5%bc%8f%e9%8e%96%e5%ae%9a-fpDFBMUuzP\">\u986f\u5f0f\u9396\u5b9a<\/h3>\n<p>\u958b\u767c\u8005\u4e5f\u53ef\u4ee5\u4f7f\u7528\u986f\u5f0f\u9396\u5b9a\u4f86\u63a7\u5236\u9396\u7684\u884c\u70ba\u3002MySQL\u63d0\u4f9b\u4e86LOCK TABLES\u548cUNLOCK TABLES\u8a9e\u53e5\u4f86\u5be6\u73fe\u986f\u5f0f\u9396\u5b9a\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>LOCK TABLES my_table WRITE;<\/code><\/pre>\n<pre><code>UNLOCK TABLES;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u5c0dmy_table\u8868\u9032\u884c\u6392\u4ed6\u9396\u5b9a\uff0c\u76f4\u5230UNLOCK TABLES\u8a9e\u53e5\u88ab\u57f7\u884c\u3002<\/p>\n<h2 id=\"%e9%8e%96%e7%9a%84%e5%bd%b1%e9%9f%bf-fpDFBMUuzP\">\u9396\u7684\u5f71\u97ff<\/h2>\n<p>\u9396\u7684\u4f7f\u7528\u96d6\u7136\u80fd\u5920\u4fdd\u8b77\u8cc7\u6599\u7684\u4e00\u81f4\u6027\uff0c\u4f46\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u554f\u984c\u3002\u4f8b\u5982\uff0c\u904e\u591a\u7684\u9396\u5b9a\u6703\u5c0e\u81f4\u6b7b\u9396\uff08Deadlock\uff09\u73fe\u8c61\uff0c\u9019\u662f\u6307\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\uff0c\u6700\u7d42\u5c0e\u81f4\u6240\u6709\u4e8b\u52d9\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u3002\u70ba\u4e86\u907f\u514d\u6b7b\u9396\uff0c\u958b\u767c\u8005\u61c9\u8a72\u9075\u5faa\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u76e1\u91cf\u6e1b\u5c11\u9396\u7684\u6301\u6709\u6642\u9593\u3002<\/li>\n<li>\u5728\u4e8b\u52d9\u4e2d\u4ee5\u76f8\u540c\u7684\u9806\u5e8f\u8a2a\u554f\u8cc7\u6599\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u9396\u985e\u578b\uff0c\u6839\u64da\u5be6\u969b\u9700\u6c42\u9078\u64c7\u884c\u9396\u6216\u8868\u9396\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-fpDFBMUuzP\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u7684\u9396\u6a5f\u5236\u662f\u78ba\u4fdd\u8cc7\u6599\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u95dc\u9375\u7d44\u4ef6\u3002\u4e86\u89e3\u4e0d\u540c\u985e\u578b\u7684\u9396\u53ca\u5176\u5de5\u4f5c\u539f\u7406\uff0c\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u8a2d\u8a08\u548c\u512a\u5316\u8cc7\u6599\u5eab\u61c9\u7528\u3002\u5728\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u6642\uff0c\u8003\u616e\u5230\u8cc7\u6599\u5eab\u7684\u9396\u6a5f\u5236\u53ca\u5176\u6027\u80fd\u5f71\u97ff\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6548\u7387\u3002\u7121\u8ad6\u662f\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u4e86\u89e3MySQL\u7684\u9396\u6a5f\u5236\u90fd\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u7406\u89e3MySQL\u9396\u6a5f\u5236\u539f\u7406\uff0c\u63a2\u7d22\u9396\u7684\u985e\u578b\u3001\u904b\u4f5c\u65b9\u5f0f\u53ca\u5176\u5c0d\u6578\u64da\u4e00\u81f4\u6027\u548c\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-180958","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180958","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=180958"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180958\/revisions"}],"predecessor-version":[{"id":180959,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180958\/revisions\/180959"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}