{"id":196217,"date":"2024-11-13T21:27:19","date_gmt":"2024-11-13T13:27:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196217\/"},"modified":"2024-11-13T21:27:20","modified_gmt":"2024-11-13T13:27:20","slug":"%e6%8e%8c%e6%8f%a1%e6%95%b8%e6%93%9a%e5%ba%ab%e7%95%b0%e5%b8%b8%e5%88%86%e6%9e%90%e8%88%87%e7%b6%ad%e8%ad%b7%e6%8a%80%e5%b7%a7-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%95%b0%e5%b8%b8%e5%88%86%e6%9e%90%e8%88%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196217\/","title":{"rendered":"\u638c\u63e1\u6578\u64da\u5eab\u7570\u5e38\u5206\u6790\u8207\u7dad\u8b77\u6280\u5de7 (\u6578\u64da\u5eab\u7570\u5e38\u5206\u6790\u8207\u7dad\u8b77)"},"content":{"rendered":"<h1 id=\"%e6%8e%8c%e6%8f%a1%e6%95%b8%e6%93%9a%e5%ba%ab%e7%95%b0%e5%b8%b8%e5%88%86%e6%9e%90%e8%88%87%e7%b6%ad%e8%ad%b7%e6%8a%80%e5%b7%a7-KtwYdtQoyo\">\u638c\u63e1\u6578\u64da\u5eab\u7570\u5e38\u5206\u6790\u8207\u7dad\u8b77\u6280\u5de7<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002\u6578\u64da\u5eab\u7570\u5e38\u5206\u6790\u8207\u7dad\u8b77\u662f\u78ba\u4fdd\u6578\u64da\u5eab\u7cfb\u7d71\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eab\u7570\u5e38\u7684\u5e38\u898b\u985e\u578b\u3001\u5206\u6790\u65b9\u6cd5\u4ee5\u53ca\u7dad\u8b77\u6280\u5de7\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7ba1\u7406\u548c\u512a\u5316\u5176\u6578\u64da\u5eab\u7cfb\u7d71\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e7%95%b0%e5%b8%b8%e9%a1%9e%e5%9e%8b-KtwYdtQoyo\">\u5e38\u898b\u7684\u6578\u64da\u5eab\u7570\u5e38\u985e\u578b<\/h2>\n<p>\u6578\u64da\u5eab\u7570\u5e38\u901a\u5e38\u53ef\u4ee5\u5206\u70ba\u4ee5\u4e0b\u5e7e\u985e\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u7570\u5e38\uff1a<\/strong>\u9019\u985e\u7570\u5e38\u901a\u5e38\u8868\u73fe\u70ba\u67e5\u8a62\u901f\u5ea6\u7de9\u6162\u3001\u97ff\u61c9\u6642\u9593\u904e\u9577\u7b49\u554f\u984c\uff0c\u53ef\u80fd\u7531\u65bc\u7d22\u5f15\u7f3a\u5931\u3001\u67e5\u8a62\u4e0d\u7576\u6216\u8cc7\u6e90\u4e0d\u8db3\u7b49\u539f\u56e0\u5f15\u8d77\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\u7570\u5e38\uff1a<\/strong>\u7576\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u4e0d\u4e00\u81f4\u6642\uff0c\u6703\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u51fa\u73fe\u932f\u8aa4\uff0c\u9019\u53ef\u80fd\u662f\u7531\u65bc\u4e26\u767c\u64cd\u4f5c\u6216\u4e8b\u52d9\u7ba1\u7406\u4e0d\u7576\u9020\u6210\u7684\u3002<\/li>\n<li><strong>\u9023\u63a5\u7570\u5e38\uff1a<\/strong>\u6578\u64da\u5eab\u9023\u63a5\u554f\u984c\u53ef\u80fd\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u7121\u6cd5\u8a2a\u554f\u6578\u64da\u5eab\uff0c\u9019\u901a\u5e38\u8207\u7db2\u7d61\u554f\u984c\u6216\u6578\u64da\u5eab\u914d\u7f6e\u6709\u95dc\u3002<\/li>\n<li><strong>\u5b89\u5168\u7570\u5e38\uff1a<\/strong>\u6578\u64da\u5eab\u7684\u5b89\u5168\u6027\u554f\u984c\uff0c\u5982\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u6216\u6578\u64da\u6d29\u9732\uff0c\u6703\u5c0d\u4f01\u696d\u9020\u6210\u56b4\u91cd\u640d\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%95%b0%e5%b8%b8%e5%88%86%e6%9e%90%e6%96%b9%e6%b3%95-KtwYdtQoyo\">\u6578\u64da\u5eab\u7570\u5e38\u5206\u6790\u65b9\u6cd5<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u5730\u5206\u6790\u6578\u64da\u5eab\u7570\u5e38\uff0c\u7ba1\u7406\u8005\u53ef\u4ee5\u63a1\u7528\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e6%97%a5%e8%aa%8c%e5%88%86%e6%9e%90-KtwYdtQoyo\">1. \u65e5\u8a8c\u5206\u6790<\/h3>\n<p>\u6578\u64da\u5eab\u7cfb\u7d71\u901a\u5e38\u6703\u751f\u6210\u65e5\u8a8c\u6587\u4ef6\uff0c\u9019\u4e9b\u65e5\u8a8c\u8a18\u9304\u4e86\u7cfb\u7d71\u7684\u904b\u884c\u72c0\u614b\u548c\u932f\u8aa4\u4fe1\u606f\u3002\u901a\u904e\u5206\u6790\u9019\u4e9b\u65e5\u8a8c\uff0c\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b MySQL \u7684\u932f\u8aa4\u65e5\u8a8c\uff1a<\/p>\n<pre><code>tail -f \/var\/log\/mysql\/error.log<\/code><\/pre>\n<h3 id=\"2-%e6%80%a7%e8%83%bd%e7%9b%a3%e6%8e%a7%e5%b7%a5%e5%85%b7-KtwYdtQoyo\">2. \u6027\u80fd\u76e3\u63a7\u5de5\u5177<\/h3>\n<p>\u4f7f\u7528\u6027\u80fd\u76e3\u63a7\u5de5\u5177\uff08\u5982 Prometheus\u3001Grafana\uff09\u53ef\u4ee5\u5be6\u6642\u76e3\u63a7\u6578\u64da\u5eab\u7684\u6027\u80fd\u6307\u6a19\uff0c\u5982\u67e5\u8a62\u5ef6\u9072\u3001CPU \u4f7f\u7528\u7387\u548c\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002\u9019\u4e9b\u5de5\u5177\u80fd\u5e6b\u52a9\u7ba1\u7406\u8005\u53ca\u6642\u767c\u73fe\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<h3 id=\"3-%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96-KtwYdtQoyo\">3. \u67e5\u8a62\u512a\u5316<\/h3>\n<p>\u5c0d\u65bc\u6027\u80fd\u7570\u5e38\uff0c\u67e5\u8a62\u512a\u5316\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u4f7f\u7528 EXPLAIN \u8a9e\u53e5\u53ef\u4ee5\u5206\u6790\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u5f9e\u800c\u627e\u51fa\u6f5b\u5728\u7684\u6027\u80fd\u554f\u984c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>EXPLAIN SELECT * FROM users WHERE age &gt; 30;<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b6%ad%e8%ad%b7%e6%8a%80%e5%b7%a7-KtwYdtQoyo\">\u6578\u64da\u5eab\u7dad\u8b77\u6280\u5de7<\/h2>\n<p>\u70ba\u4e86\u4fdd\u6301\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\uff0c\u5b9a\u671f\u7dad\u8b77\u662f\u5fc5\u9808\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6709\u6548\u7684\u7dad\u8b77\u6280\u5de7\uff1a<\/p>\n<h3 id=\"1-%e5%ae%9a%e6%9c%9f%e5%82%99%e4%bb%bd-KtwYdtQoyo\">1. \u5b9a\u671f\u5099\u4efd<\/h3>\n<p>\u5b9a\u671f\u5099\u4efd\u6578\u64da\u5eab\u662f\u9632\u6b62\u6578\u64da\u4e1f\u5931\u7684\u6709\u6548\u63aa\u65bd\u3002\u53ef\u4ee5\u4f7f\u7528\u81ea\u52d5\u5316\u5de5\u5177\u5b9a\u671f\u57f7\u884c\u5099\u4efd\u4efb\u52d9\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h3 id=\"2-%e6%9b%b4%e6%96%b0%e5%92%8c%e5%8d%87%e7%b4%9a-KtwYdtQoyo\">2. \u66f4\u65b0\u548c\u5347\u7d1a<\/h3>\n<p>\u4fdd\u6301\u6578\u64da\u5eab\u7cfb\u7d71\u7684\u66f4\u65b0\u548c\u5347\u7d1a\u53ef\u4ee5\u4fee\u5fa9\u5df2\u77e5\u7684\u6f0f\u6d1e\u548c\u6027\u80fd\u554f\u984c\u3002\u5b9a\u671f\u6aa2\u67e5\u5b98\u65b9\u6587\u6a94\uff0c\u4e86\u89e3\u6700\u65b0\u7684\u7248\u672c\u548c\u529f\u80fd\u3002<\/p>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e6%b8%85%e7%90%86-KtwYdtQoyo\">3. \u6578\u64da\u6e05\u7406<\/h3>\n<p>\u5b9a\u671f\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528 SQL \u8a9e\u53e5\u522a\u9664\u904e\u671f\u6216\u5197\u9918\u7684\u6578\u64da\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>DELETE FROM logs WHERE created_at &lt; NOW() - INTERVAL 30 DAY;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-KtwYdtQoyo\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u7570\u5e38\u5206\u6790\u8207\u7dad\u8b77\u662f\u4e00\u9805\u6301\u7e8c\u7684\u5de5\u4f5c\uff0c\u901a\u904e\u6709\u6548\u7684\u5206\u6790\u65b9\u6cd5\u548c\u7dad\u8b77\u6280\u5de7\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u958b\u767c\u8005\uff0c\u638c\u63e1\u9019\u4e9b\u6280\u80fd\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u904b\u884c\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u6578\u64da\u5eab\u7570\u5e38\u5206\u6790\u8207\u7dad\u8b77\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\uff0c\u5feb\u901f\u89e3\u6c7a\u554f\u984c\uff0c\u512a\u5316\u7cfb\u7d71\u904b\u884c\u6548\u7387\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-196217","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196217","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=196217"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196217\/revisions"}],"predecessor-version":[{"id":196218,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196217\/revisions\/196218"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}