{"id":157532,"date":"2024-11-02T23:22:21","date_gmt":"2024-11-02T15:22:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/157532\/"},"modified":"2024-11-02T23:22:22","modified_gmt":"2024-11-02T15:22:22","slug":"%e9%ab%98%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8%e7%8e%87%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/157532\/","title":{"rendered":"\u9ad8\u5167\u5b58\u4f7f\u7528\u7387\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6cd5\uff08\u6578\u64da\u5eab\u5167\u5b58\u4f7f\u7528\u7387\u9ad8\uff09"},"content":{"rendered":"<h1 id=\"%e9%ab%98%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8%e7%8e%87%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8-JHlpefpyQh\">\u9ad8\u5167\u5b58\u4f7f\u7528\u7387\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6cd5\uff08\u6578\u64da\u5eab\u5167\u5b58\u4f7f\u7528\u7387\u9ad8\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u6578\u64da\u5eab\u7684\u5167\u5b58\u4f7f\u7528\u7387\u4e5f\u96a8\u4e4b\u4e0a\u5347\u3002\u9ad8\u5167\u5b58\u4f7f\u7528\u7387\u53ef\u80fd\u5c0e\u81f4\u7cfb\u7d71\u6027\u80fd\u4e0b\u964d\uff0c\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u97ff\u61c9\u6642\u9593\uff0c\u751a\u81f3\u5c0e\u81f4\u670d\u52d9\u4e2d\u65b7\u3002\u56e0\u6b64\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u548c\u512a\u5316\u6578\u64da\u5eab\u7684\u5167\u5b58\u4f7f\u7528\u7387\u662f\u6bcf\u500b\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9c%83%e5%87%ba%e7%8f%be%e9%ab%98%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8%e7%8e%87-JHlpefpyQh\">\u70ba\u4ec0\u9ebc\u6578\u64da\u5eab\u6703\u51fa\u73fe\u9ad8\u5167\u5b58\u4f7f\u7528\u7387<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u5167\u5b58\u4f7f\u7528\u7387\u9ad8\u7684\u539f\u56e0\u6709\u5f88\u591a\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u67e5\u8a62\u6548\u7387\u4f4e\u4e0b\uff1a<\/strong>\u4e0d\u7576\u7684\u67e5\u8a62\u8a2d\u8a08\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u5eab\u5728\u57f7\u884c\u67e5\u8a62\u6642\u6d88\u8017\u904e\u591a\u7684\u5167\u5b58\u3002<\/li>\n<li><strong>\u7d22\u5f15\u7f3a\u5931\uff1a<\/strong>\u7f3a\u5c11\u9069\u7576\u7684\u7d22\u5f15\u6703\u4f7f\u6578\u64da\u5eab\u5728\u67e5\u8a62\u6642\u9700\u8981\u6383\u63cf\u6574\u500b\u8868\uff0c\u5f9e\u800c\u589e\u52a0\u5167\u5b58\u4f7f\u7528\u3002<\/li>\n<li><strong>\u7de9\u5b58\u914d\u7f6e\u4e0d\u7576\uff1a<\/strong>\u6578\u64da\u5eab\u7684\u7de9\u5b58\u8a2d\u7f6e\u5982\u679c\u4e0d\u5408\u7406\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5167\u5b58\u8cc7\u6e90\u7684\u6d6a\u8cbb\u3002<\/li>\n<li><strong>\u6578\u64da\u91cf\u6fc0\u589e\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u6578\u64da\u5eab\u9700\u8981\u66f4\u591a\u7684\u5167\u5b58\u4f86\u8655\u7406\u9019\u4e9b\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e9%ab%98%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8%e7%8e%87%e7%9a%84%e7%ad%96%e7%95%a5-JHlpefpyQh\">\u89e3\u6c7a\u9ad8\u5167\u5b58\u4f7f\u7528\u7387\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2-JHlpefpyQh\">1. \u512a\u5316\u67e5\u8a62<\/h3>\n<p>\u67e5\u8a62\u7684\u512a\u5316\u662f\u964d\u4f4e\u5167\u5b58\u4f7f\u7528\u7387\u7684\u9996\u8981\u6b65\u9a5f\u3002\u4f7f\u7528 EXPLAIN \u8a9e\u53e5\u4f86\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u627e\u51fa\u6027\u80fd\u74f6\u9838\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>EXPLAIN SELECT * FROM users WHERE age &gt; 30;<\/code><\/pre>\n<p>\u901a\u904e\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u53ef\u4ee5\u4e86\u89e3\u67e5\u8a62\u662f\u5426\u4f7f\u7528\u4e86\u7d22\u5f15\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h3 id=\"2-%e6%b7%bb%e5%8a%a0%e7%b4%a2%e5%bc%95-JHlpefpyQh\">2. \u6dfb\u52a0\u7d22\u5f15<\/h3>\n<p>\u70ba\u5e38\u7528\u7684\u67e5\u8a62\u6dfb\u52a0\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u5f9e\u800c\u6e1b\u5c11\u5167\u5b58\u4f7f\u7528\u3002\u78ba\u4fdd\u5c0d\u65bc\u7d93\u5e38\u67e5\u8a62\u7684\u5b57\u6bb5\u5efa\u7acb\u7d22\u5f15\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE INDEX idx_age ON users(age);<\/code><\/pre>\n<h3 id=\"3-%e8%aa%bf%e6%95%b4%e7%b7%a9%e5%ad%98%e8%a8%ad%e7%bd%ae-JHlpefpyQh\">3. \u8abf\u6574\u7de9\u5b58\u8a2d\u7f6e<\/h3>\n<p>\u6578\u64da\u5eab\u7684\u7de9\u5b58\u8a2d\u7f6e\u61c9\u6839\u64da\u5be6\u969b\u4f7f\u7528\u60c5\u6cc1\u9032\u884c\u8abf\u6574\u3002\u5c0d\u65bc MySQL\uff0c\u53ef\u4ee5\u901a\u904e\u4fee\u6539 my.cnf \u6587\u4ef6\u4e2d\u7684\u4ee5\u4e0b\u53c3\u6578\u4f86\u8abf\u6574\u7de9\u5b58\uff1a<\/p>\n<pre><code>[mysqld]\ninnodb_buffer_pool_size = 1G<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u5728\u5167\u5b58\u4e2d\u4fdd\u7559\u66f4\u591a\u7684\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<h3 id=\"4-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e6%95%b8%e6%93%9a-JHlpefpyQh\">4. \u5b9a\u671f\u6e05\u7406\u6578\u64da<\/h3>\n<p>\u5b9a\u671f\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0c\u5f9e\u800c\u964d\u4f4e\u5167\u5b58\u4f7f\u7528\u7387\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u522a\u9664\u904e\u671f\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>DELETE FROM logs WHERE created_at &lt; NOW() - INTERVAL 30 DAY;<\/code><\/pre>\n<h3 id=\"5-%e7%9b%a3%e6%8e%a7%e5%92%8c%e5%88%86%e6%9e%90%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-JHlpefpyQh\">5. \u76e3\u63a7\u548c\u5206\u6790\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1<\/h3>\n<p>\u4f7f\u7528\u76e3\u63a7\u5de5\u5177\u4f86\u8ddf\u8e64\u6578\u64da\u5eab\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ca\u6642\u767c\u73fe\u554f\u984c\u4e26\u9032\u884c\u8abf\u6574\u3002\u5de5\u5177\u5982 Prometheus \u548c Grafana \u53ef\u4ee5\u5e6b\u52a9\u53ef\u8996\u5316\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u5f9e\u800c\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-JHlpefpyQh\">\u7d50\u8ad6<\/h2>\n<p>\u9ad8\u5167\u5b58\u4f7f\u7528\u7387\u7684\u6578\u64da\u5eab\u554f\u984c\u662f\u8a31\u591a\u4f01\u696d\u9762\u81e8\u7684\u6311\u6230\u3002\u901a\u904e\u512a\u5316\u67e5\u8a62\u3001\u6dfb\u52a0\u7d22\u5f15\u3001\u8abf\u6574\u7de9\u5b58\u8a2d\u7f6e\u3001\u5b9a\u671f\u6e05\u7406\u6578\u64da\u4ee5\u53ca\u76e3\u63a7\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u5167\u5b58\u4f7f\u7528\u7387\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u9078\u64c7 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u9078\u64c7\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u9ad8\u6548\u904b\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u9ad8\u5167\u5b58\u4f7f\u7528\u7387\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6cd5\uff0c\u512a\u5316\u6027\u80fd\uff0c\u964d\u4f4e\u8cc7\u6e90\u6d88\u8017\uff0c\u63d0\u5347\u7cfb\u7d71\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-157532","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157532","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=157532"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157532\/revisions"}],"predecessor-version":[{"id":157533,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157532\/revisions\/157533"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=157532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=157532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=157532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}