{"id":186748,"date":"2024-11-11T08:30:31","date_gmt":"2024-11-11T00:30:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186748\/"},"modified":"2024-11-11T08:30:32","modified_gmt":"2024-11-11T00:30:32","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9b%a3%e6%8e%a7%ef%bc%9a%e9%97%9c%e6%b3%a8%e9%87%8d%e9%bb%9e%e6%8c%87%e6%a8%99-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9b%a3%e6%8e%a7%e9%87%8d%e9%bb%9e%e6%8c%87%e6%a8%99","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186748\/","title":{"rendered":"\u6578\u64da\u5eab\u76e3\u63a7\uff1a\u95dc\u6ce8\u91cd\u9ede\u6307\u6a19 (\u6578\u64da\u5eab\u76e3\u63a7\u91cd\u9ede\u6307\u6a19)"},"content":{"rendered":"

\u6578\u64da\u5eab\u76e3\u63a7\uff1a\u95dc\u6ce8\u91cd\u9ede\u6307\u6a19<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002\u6578\u64da\u5eab\u76e3\u63a7\u662f\u4e00\u500b\u95dc\u9375\u7684\u7ba1\u7406\u904e\u7a0b\uff0c\u65e8\u5728\u78ba\u4fdd\u6578\u64da\u5eab\u7cfb\u7d71\u7684\u5065\u5eb7\u904b\u884c\uff0c\u4e26\u53ca\u6642\u767c\u73fe\u6f5b\u5728\u7684\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eab\u76e3\u63a7\u7684\u91cd\u9ede\u6307\u6a19\uff0c\u5e6b\u52a9\u4f01\u696d\u66f4\u597d\u5730\u7ba1\u7406\u5176\u6578\u64da\u5eab\u74b0\u5883\u3002<\/p>\n

1. \u9023\u63a5\u6578\u91cf<\/h2>\n

\u9023\u63a5\u6578\u91cf\u662f\u6307\u7576\u524d\u9023\u63a5\u5230\u6578\u64da\u5eab\u7684\u5ba2\u6236\u7aef\u6578\u91cf\u3002\u904e\u591a\u7684\u9023\u63a5\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u751a\u81f3\u4f7f\u6578\u64da\u5eab\u7121\u6cd5\u97ff\u61c9\u3002\u76e3\u63a7\u9023\u63a5\u6578\u91cf\u53ef\u4ee5\u5e6b\u52a9\u7ba1\u7406\u54e1\u4e86\u89e3\u7cfb\u7d71\u7684\u8ca0\u8f09\u60c5\u6cc1\uff0c\u4e26\u5728\u5fc5\u8981\u6642\u9032\u884c\u8abf\u6574\u3002<\/p>\n

SELECT COUNT(*) FROM pg_stat_activity;<\/code><\/pre>\n
2. \u67e5\u8a62\u6027\u80fd<\/h2>\n
\u67e5\u8a62\u6027\u80fd\u662f\u8a55\u4f30\u6578\u64da\u5eab\u6548\u7387\u7684\u91cd\u8981\u6307\u6a19\u3002\u901a\u904e\u76e3\u63a7\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\u548c\u983b\u7387\uff0c\u7ba1\u7406\u54e1\u53ef\u4ee5\u8b58\u5225\u51fa\u6027\u80fd\u74f6\u9838\u3002\u5e38\u898b\u7684\u67e5\u8a62\u6027\u80fd\u6307\u6a19\u5305\u62ec\u5e73\u5747\u67e5\u8a62\u6642\u9593\u3001\u6700\u9577\u67e5\u8a62\u6642\u9593\u548c\u67e5\u8a62\u6578\u91cf\u3002<\/p>\n
SELECT query, total_time, calls FROM pg_stat_statements ORDER BY total_time DESC LIMIT 5;<\/code><\/pre>\n
3. \u9396\u5b9a\u60c5\u6cc1<\/h2>\n
\u9396\u5b9a\u662f\u6578\u64da\u5eab\u4e2d\u5e38\u898b\u7684\u554f\u984c\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u76e3\u63a7\u9396\u5b9a\u60c5\u6cc1\u53ef\u4ee5\u5e6b\u52a9\u7ba1\u7406\u54e1\u8b58\u5225\u51fa\u54ea\u4e9b\u67e5\u8a62\u6216\u4e8b\u52d9\u6b63\u5728\u963b\u585e\u5176\u4ed6\u64cd\u4f5c\u3002\u9019\u6a23\u53ef\u4ee5\u53ca\u6642\u8abf\u6574\u67e5\u8a62\u6216\u512a\u5316\u6578\u64da\u5eab\u7d50\u69cb\u3002<\/p>\n
SELECT * FROM pg_locks WHERE NOT granted;<\/code><\/pre>\n
4. \u78c1\u789f\u4f7f\u7528\u60c5\u6cc1<\/h2>\n
\u78c1\u789f\u4f7f\u7528\u60c5\u6cc1\u662f\u5f71\u97ff\u6578\u64da\u5eab\u6027\u80fd\u7684\u53e6\u4e00\u500b\u91cd\u8981\u56e0\u7d20\u3002\u76e3\u63a7\u78c1\u789f\u7a7a\u9593\u7684\u4f7f\u7528\u60c5\u6cc1\u53ef\u4ee5\u5e6b\u52a9\u7ba1\u7406\u54e1\u9810\u6e2c\u4f55\u6642\u9700\u8981\u64f4\u5c55\u5b58\u5132\uff0c\u4e26\u907f\u514d\u56e0\u78c1\u789f\u7a7a\u9593\u4e0d\u8db3\u800c\u5c0e\u81f4\u7684\u6578\u64da\u5eab\u6545\u969c\u3002<\/p>\n
SELECT pg_size_pretty(pg_database_size('your_database_name'));<\/code><\/pre>\n
5. CPU \u548c\u5167\u5b58\u4f7f\u7528\u7387<\/h2>\n
CPU \u548c\u5167\u5b58\u4f7f\u7528\u7387\u662f\u8a55\u4f30\u6578\u64da\u5eab\u6027\u80fd\u7684\u57fa\u672c\u6307\u6a19\u3002\u9ad8 CPU \u6216\u5167\u5b58\u4f7f\u7528\u7387\u53ef\u80fd\u8868\u660e\u6578\u64da\u5eab\u8ca0\u8f09\u904e\u91cd\uff0c\u9700\u9032\u884c\u512a\u5316\u6216\u64f4\u5c55\u8cc7\u6e90\u3002\u5b9a\u671f\u76e3\u63a7\u9019\u4e9b\u6307\u6a19\u53ef\u4ee5\u5e6b\u52a9\u7ba1\u7406\u54e1\u53ca\u6642\u767c\u73fe\u554f\u984c\u4e26\u63a1\u53d6\u884c\u52d5\u3002<\/p>\n
SELECT * FROM pg_stat_activity WHERE state = 'active';<\/code><\/pre>\n
6. \u6578\u64da\u5eab\u932f\u8aa4\u548c\u8b66\u544a<\/h2>\n
\u76e3\u63a7\u6578\u64da\u5eab\u932f\u8aa4\u548c\u8b66\u544a\u662f\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u5206\u6790\u932f\u8aa4\u65e5\u8a8c\uff0c\u7ba1\u7406\u54e1\u53ef\u4ee5\u8b58\u5225\u51fa\u6f5b\u5728\u7684\u554f\u984c\u4e26\u53ca\u6642\u89e3\u6c7a\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u9760\u6027\uff0c\u9084\u80fd\u6e1b\u5c11\u6545\u969c\u6642\u9593\u3002<\/p>\n
SELECT * FROM pg_catalog.pg_log WHERE log_level = 'ERROR';<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
\u6578\u64da\u5eab\u76e3\u63a7\u662f\u78ba\u4fdd\u6578\u64da\u5eab\u7cfb\u7d71\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u3002\u901a\u904e\u95dc\u6ce8\u9023\u63a5\u6578\u91cf\u3001\u67e5\u8a62\u6027\u80fd\u3001\u9396\u5b9a\u60c5\u6cc1\u3001\u78c1\u789f\u4f7f\u7528\u60c5\u6cc1\u3001CPU \u548c\u5167\u5b58\u4f7f\u7528\u7387\u4ee5\u53ca\u6578\u64da\u5eab\u932f\u8aa4\u548c\u8b66\u544a\u7b49\u6307\u6a19\uff0c\u4f01\u696d\u53ef\u4ee5\u53ca\u6642\u767c\u73fe\u4e26\u89e3\u6c7a\u6f5b\u5728\u554f\u984c\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n
\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5eab\u7ba1\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u80fd\u70ba\u4f01\u696d\u63d0\u4f9b\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u652f\u6301\uff0c\u78ba\u4fdd\u696d\u52d9\u7684\u6301\u7e8c\u904b\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3\u6578\u64da\u5eab\u76e3\u63a7\u7684\u91cd\u9ede\u6307\u6a19\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u3001\u7a69\u5b9a\u6027\u8207\u5b89\u5168\u6027\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\u8207\u53ef\u9760\u6027\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-186748","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186748","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=186748"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186748\/revisions"}],"predecessor-version":[{"id":186749,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186748\/revisions\/186749"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=186748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=186748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=186748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}