{"id":176887,"date":"2024-11-08T12:34:22","date_gmt":"2024-11-08T04:34:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/176887\/"},"modified":"2024-11-08T12:34:23","modified_gmt":"2024-11-08T04:34:23","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a4-%e5%b7%b2%e9%8e%96%e5%ae%9a%e7%9a%84%e7%ad%89%e5%be%85%e8%b6%85%e6%99%82%e9%81%8e%e5%a4%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/176887\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa4 &#8211; \u5df2\u9396\u5b9a\u7684\u7b49\u5f85\u8d85\u6642\u904e\u591a"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a4-%e5%b7%b2%e9%8e%96%e5%ae%9a%e7%9a%84%e7%ad%89%e5%be%85%e8%b6%85%e6%99%82%e9%81%8e%e5%a4%9a-PpNjSWcOpk\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa4 &#8211; \u5df2\u9396\u5b9a\u7684\u7b49\u5f85\u8d85\u6642\u904e\u591a<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u300c\u5df2\u9396\u5b9a\u7684\u7b49\u5f85\u8d85\u6642\u904e\u591a\u300d\u7684\u932f\u8aa4\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u4e00\u500b\u6216\u591a\u500b\u67e5\u8a62\u56e0\u70ba\u7b49\u5f85\u9396\u5b9a\u800c\u7121\u6cd5\u57f7\u884c\uff0c\u6700\u7d42\u5c0e\u81f4\u8d85\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u500b\u554f\u984c\u7684\u6210\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%9a%84%e6%88%90%e5%9b%a0-PpNjSWcOpk\">\u932f\u8aa4\u7684\u6210\u56e0<\/h2>\n<p>MySQL\u7684\u9396\u5b9a\u6a5f\u5236\u662f\u70ba\u4e86\u4fdd\u8b77\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u7576\u4e00\u500b\u67e5\u8a62\u6b63\u5728\u4fee\u6539\u6578\u64da\u6642\uff0c\u5176\u4ed6\u67e5\u8a62\u5982\u679c\u8a66\u5716\u8a2a\u554f\u76f8\u540c\u7684\u6578\u64da\uff0c\u5c31\u6703\u88ab\u9396\u5b9a\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u5c0e\u81f4\u300c\u5df2\u9396\u5b9a\u7684\u7b49\u5f85\u8d85\u6642\u904e\u591a\u300d\u932f\u8aa4\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u9577\u6642\u9593\u904b\u884c\u7684\u67e5\u8a62\uff1a<\/strong>\u5982\u679c\u67d0\u500b\u67e5\u8a62\u904b\u884c\u6642\u9593\u904e\u9577\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5176\u4ed6\u67e5\u8a62\u7121\u6cd5\u7372\u5f97\u6240\u9700\u7684\u9396\u5b9a\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u7d22\u5f15\u4f7f\u7528\uff1a<\/strong>\u7f3a\u4e4f\u9069\u7576\u7684\u7d22\u5f15\u53ef\u80fd\u6703\u5c0e\u81f4\u5168\u8868\u6383\u63cf\uff0c\u5f9e\u800c\u589e\u52a0\u9396\u5b9a\u7684\u6301\u6709\u6642\u9593\u3002<\/li>\n<li><strong>\u6b7b\u9396\uff1a<\/strong>\u7576\u5169\u500b\u6216\u591a\u500b\u67e5\u8a62\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\u5b9a\u6642\uff0c\u5c31\u6703\u767c\u751f\u6b7b\u9396\uff0c\u9019\u6703\u5c0e\u81f4\u8d85\u6642\u3002<\/li>\n<li><strong>\u9ad8\u4f75\u767c\u8a2a\u554f\uff1a<\/strong>\u5728\u9ad8\u4f75\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u9396\u5b9a\u7af6\u722d\u6703\u52a0\u5287\uff0c\u5f9e\u800c\u589e\u52a0\u8d85\u6642\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%bd%b1%e9%9f%bf-PpNjSWcOpk\">\u5f71\u97ff<\/h2>\n<p>\u7576MySQL\u51fa\u73fe\u300c\u5df2\u9396\u5b9a\u7684\u7b49\u5f85\u8d85\u6642\u904e\u591a\u300d\u932f\u8aa4\u6642\uff0c\u6703\u5c0d\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u9020\u6210\u8ca0\u9762\u5f71\u97ff\u3002\u7528\u6236\u53ef\u80fd\u6703\u9047\u5230\u5ef6\u9072\u6216\u7121\u6cd5\u5b8c\u6210\u64cd\u4f5c\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\u7a0b\u5e8f\u4f86\u8aaa\u662f\u4e0d\u53ef\u63a5\u53d7\u7684\u3002\u6b64\u5916\uff0c\u9019\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u98a8\u96aa\uff0c\u7279\u5225\u662f\u5728\u4e8b\u52d9\u8655\u7406\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-PpNjSWcOpk\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7a\u300c\u5df2\u9396\u5b9a\u7684\u7b49\u5f85\u8d85\u6642\u904e\u591a\u300d\u7684\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2-PpNjSWcOpk\">1. \u512a\u5316\u67e5\u8a62<\/h3>\n<p>\u6aa2\u67e5\u4e26\u512a\u5316\u9577\u6642\u9593\u904b\u884c\u7684\u67e5\u8a62\uff0c\u78ba\u4fdd\u5b83\u5011\u80fd\u5920\u5feb\u901f\u57f7\u884c\u3002\u4f7f\u7528EXPLAIN\u8a9e\u53e5\u4f86\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u4e26\u6839\u64da\u9700\u8981\u6dfb\u52a0\u7d22\u5f15\u3002<\/p>\n<pre><code>EXPLAIN SELECT * FROM your_table WHERE your_condition;<\/code><\/pre>\n<h3 id=\"2-%e5%a2%9e%e5%8a%a0%e8%b6%85%e6%99%82%e8%a8%ad%e7%bd%ae-PpNjSWcOpk\">2. \u589e\u52a0\u8d85\u6642\u8a2d\u7f6e<\/h3>\n<p>\u53ef\u4ee5\u8003\u616e\u589e\u52a0MySQL\u7684\u8d85\u6642\u8a2d\u7f6e\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>SET GLOBAL innodb_lock_wait_timeout = 120;<\/code><\/pre>\n<p>\u9019\u5c07\u628a\u9396\u5b9a\u7b49\u5f85\u7684\u8d85\u6642\u6642\u9593\u8a2d\u7f6e\u70ba120\u79d2\uff0c\u4f46\u9019\u4e26\u4e0d\u662f\u6839\u672c\u89e3\u6c7a\u65b9\u6848\uff0c\u61c9\u8a72\u8207\u5176\u4ed6\u65b9\u6cd5\u7d50\u5408\u4f7f\u7528\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e6%ad%bb%e9%8e%96-PpNjSWcOpk\">3. \u6aa2\u67e5\u6b7b\u9396<\/h3>\n<p>\u4f7f\u7528SHOW ENGINE INNODB STATUS\u547d\u4ee4\u4f86\u6aa2\u67e5\u662f\u5426\u5b58\u5728\u6b7b\u9396\u3002\u5982\u679c\u767c\u73fe\u6b7b\u9396\uff0c\u61c9\u8a72\u91cd\u65b0\u8a2d\u8a08\u67e5\u8a62\u6216\u4e8b\u52d9\u7684\u908f\u8f2f\uff0c\u4ee5\u907f\u514d\u6b7b\u9396\u7684\u767c\u751f\u3002<\/p>\n<pre><code>SHOW ENGINE INNODB STATUS;<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e9%81%a9%e7%95%b6%e7%9a%84%e4%ba%8b%e5%8b%99%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-PpNjSWcOpk\">4. \u4f7f\u7528\u9069\u7576\u7684\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225<\/h3>\n<p>\u6839\u64da\u61c9\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u3002\u8f03\u4f4e\u7684\u9694\u96e2\u7d1a\u5225\uff08\u5982READ COMMITTED\uff09\u53ef\u4ee5\u6e1b\u5c11\u9396\u5b9a\u7684\u6301\u6709\u6642\u9593\uff0c\u4f46\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PpNjSWcOpk\">\u7e3d\u7d50<\/h2>\n<p>\u89e3\u6c7aMySQL\u7684\u300c\u5df2\u9396\u5b9a\u7684\u7b49\u5f85\u8d85\u6642\u904e\u591a\u300d\u932f\u8aa4\u9700\u8981\u5c0d\u67e5\u8a62\u9032\u884c\u512a\u5316\u3001\u8abf\u6574\u8d85\u6642\u8a2d\u7f6e\u3001\u6aa2\u67e5\u6b7b\u9396\u4ee5\u53ca\u9078\u64c7\u5408\u9069\u7684\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u3002\u9019\u4e9b\u63aa\u65bd\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u9084\u80fd\u6539\u5584\u7528\u6236\u9ad4\u9a57\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\uff0c\u78ba\u4fdd\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u904b\u884c\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa4\uff1a\u5df2\u9396\u5b9a\u7684\u7b49\u5f85\u8d85\u6642\u904e\u591a\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u907f\u514d\u9396\u5b9a\u554f\u984c\u5f71\u97ff\u61c9\u7528\u904b\u884c\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-176887","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176887","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=176887"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176887\/revisions"}],"predecessor-version":[{"id":176888,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176887\/revisions\/176888"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=176887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=176887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=176887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}