{"id":21394,"date":"2024-01-02T08:39:26","date_gmt":"2024-01-02T08:39:26","guid":{"rendered":"https:\/\/server.hk\/blog\/21394\/"},"modified":"2024-11-14T10:35:16","modified_gmt":"2024-11-14T02:35:16","slug":"how-to-fix-postgresql-error-code-40p01-deadlock_detected","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21394\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a40P01 &#8211; deadlock_detected"},"content":{"rendered":"<h1 id=\"how-to-fix-postgresql-error-code-40p01-deadlock_detected-FEtmAKFewS\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a40P01 &#8211; deadlock_detected<\/h1>\n<p>PostgreSQL \u662f\u4e00\u6b3e\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u5f0f\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u5168\u7403\u7684\u4f01\u696d\u548c\u7d44\u7e54\u3002\u7136\u800c\uff0c\u985e\u4f3c\u6240\u6709\u8edf\u9ad4\uff0c\u5b83\u4e5f\u7121\u6cd5\u514d\u9664\u51fa\u73fe\u932f\u8aa4\u548c\u554f\u984c\u3002\u5176\u4e2d\u4e00\u500b PostgreSQL \u7528\u6236\u53ef\u80fd\u9047\u5230\u7684\u5e38\u898b\u932f\u8aa4\u5c31\u662f\u5e36\u6709\u932f\u8aa4\u4ee3\u78bc 40P01 \u7684\u300cdeadlock_detected\u300d\u932f\u8aa4\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u542b\u7fa9\u4ee5\u53ca\u5982\u4f55\u4fee\u5fa9\u5b83\u3002<\/p>\n<h2 id=\"understanding-the-deadlock-error-FEtmAKFewS\">\u7406\u89e3\u6b7b\u9396\u932f\u8aa4<\/h2>\n<p>\u7576\u5169\u500b\u6216\u591a\u500b\u6578\u64da\u5eab\u4e8b\u52d9\u6c38\u4e45\u5730\u76f8\u4e92\u963b\u585e\uff0c\u4f7f\u5f97\u5b83\u5011\u4e2d\u7684\u4efb\u4f55\u4e00\u500b\u90fd\u7121\u6cd5\u7e7c\u7e8c\u9032\u884c\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u6b7b\u9396\u3002\u9019\u7a2e\u60c5\u6cc1\u662f\u7531\u65bc\u6bcf\u500b\u4e8b\u52d9\u6301\u6709\u53e6\u4e00\u500b\u4e8b\u52d9\u9700\u8981\u7e7c\u7e8c\u9032\u884c\u7684\u9396\uff0c\u5f9e\u800c\u5c0e\u81f4\u6b7b\u9396\u3002PostgreSQL \u6aa2\u6e2c\u5230\u9019\u7a2e\u6b7b\u9396\u60c5\u6cc1\uff0c\u4e26\u5347\u8d77\u5e36\u6709\u932f\u8aa4\u4ee3\u78bc 40P01 \u7684\u300cdeadlock_detected\u300d\u932f\u8aa4\u3002<\/p>\n<p>\u7576\u6b64\u932f\u8aa4\u767c\u751f\u6642\uff0cPostgreSQL \u6703\u81ea\u52d5\u56de\u6efe\u6b7b\u9396\u6d89\u53ca\u7684\u5176\u4e2d\u4e00\u500b\u4e8b\u52d9\uff0c\u4ee5\u89e3\u6c7a\u6b7b\u9396\u60c5\u6cc1\u3002\u7136\u800c\uff0c\u7406\u89e3\u6b7b\u9396\u7684\u539f\u56e0\u4e26\u63a1\u53d6\u9069\u7576\u63aa\u65bd\u4f86\u9632\u6b62\u5b83\u518d\u6b21\u767c\u751f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"identifying-the-cause-of-the-deadlock-FEtmAKFewS\">\u8b58\u5225\u6b7b\u9396\u7684\u539f\u56e0<\/h2>\n<p>\u70ba\u4e86\u4fee\u5fa9\u6b7b\u9396\u932f\u8aa4\uff0c\u60a8\u9996\u5148\u9700\u8981\u8b58\u5225\u6b7b\u9396\u7684\u539f\u56e0\u3002PostgreSQL \u63d0\u4f9b\u4e86\u6b7b\u9396\u60c5\u6cc1\u7684\u8a73\u7d30\u65e5\u8a8c\uff0c\u5305\u62ec\u53c3\u8207\u5176\u4e2d\u7684\u9032\u7a0b\u548c\u67e5\u8a62\u3002\u60a8\u53ef\u4ee5\u5728 PostgreSQL \u7684\u65e5\u8a8c\u6587\u4ef6\u4e2d\u627e\u5230\u9019\u4e9b\u65e5\u8a8c\uff0c\u901a\u5e38\u4f4d\u65bc\u300cpg_log\u300d\u76ee\u9304\u4e2d\u3002<\/p>\n<p>\u5728\u5206\u6790\u65e5\u8a8c\u6642\uff0c\u5c0b\u627e\u53c3\u8207\u6b7b\u9396\u7684\u9032\u7a0b\u548c\u67e5\u8a62\u3002\u8b58\u5225\u88ab\u9019\u4e9b\u67e5\u8a62\u8a2a\u554f\u7684\u8868\u683c\u548c\u884c\u3002\u7406\u89e3\u5c0e\u81f4\u6b7b\u9396\u7684\u5177\u9ad4\u60c5\u6cc1\u5c0d\u65bc\u5c0b\u627e\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"preventing-deadlocks-FEtmAKFewS\">\u9810\u9632\u6b7b\u9396<\/h2>\n<p>\u4e00\u65e6\u8b58\u5225\u51fa\u6b7b\u9396\u7684\u539f\u56e0\uff0c\u60a8\u53ef\u4ee5\u63a1\u53d6\u591a\u500b\u6b65\u9a5f\u4f86\u9632\u6b62\u5c07\u4f86\u518d\u6b21\u767c\u751f\u6b7b\u9396\uff1a<\/p>\n<ul>\n<li><strong>1. \u4f7f\u7528\u9069\u7576\u7684\u7d22\u5f15\uff1a<\/strong> \u78ba\u4fdd\u60a8\u7684\u8cc7\u6599\u5eab\u8868\u683c\u5177\u6709\u9069\u7576\u7684\u7d22\u5f15\u4ee5\u512a\u5316\u67e5\u8a62\u6027\u80fd\u3002\u7d22\u5f15\u4e0d\u826f\u7684\u8868\u683c\u53ef\u80fd\u5c0e\u81f4\u9396\u5b9a\u6642\u9593\u904e\u9577\uff0c\u589e\u52a0\u6b7b\u9396\u7684\u6a5f\u6703\u3002<\/li>\n<li><strong>2. \u6e1b\u5c11\u4e8b\u52d9\u6301\u7e8c\u6642\u9593\uff1a<\/strong> \u5c07\u60a8\u7684\u4e8b\u52d9\u4fdd\u6301\u76e1\u53ef\u80fd\u77ed\uff0c\u4ee5\u6e1b\u5c11\u8207\u5176\u4ed6\u4e8b\u52d9\u7684\u885d\u7a81\u6a5f\u6703\u3002\u9577\u6642\u9593\u904b\u884c\u7684\u4e8b\u52d9\u589e\u52a0\u4e86\u6b7b\u9396\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<li><strong>3. \u907f\u514d\u96b1\u5f0f\u9396\u5b9a\uff1a<\/strong> \u5728\u4f7f\u7528\u6703\u96b1\u5f0f\u7372\u53d6\u9396\u7684\u529f\u80fd\uff08\u5982\u5916\u9375\u7d04\u675f\u6216\u89f8\u767c\u5668\uff09\u6642\u8981\u8b39\u614e\u3002\u5982\u679c\u4e0d\u5c0f\u5fc3\u4f7f\u7528\u9019\u4e9b\u9396\u5b9a\uff0c\u5b83\u5011\u53ef\u80fd\u6703\u5c0e\u81f4\u6b7b\u9396\u3002<\/li>\n<li><strong>4. \u6392\u5e8f\u9396\u5b9a\u8cc7\u6e90\u7684\u7372\u53d6\uff1a<\/strong> \u78ba\u4fdd\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u6309\u7167\u4e00\u81f4\u7684\u9806\u5e8f\u7372\u53d6\u6578\u64da\u5eab\u5c0d\u8c61\u4e0a\u7684\u9396\u3002\u4e0d\u4e00\u81f4\u7684\u9396\u5b9a\u7372\u53d6\u9806\u5e8f\u53ef\u80fd\u5c0e\u81f4\u5faa\u74b0\u4f9d\u8cf4\u548c\u6b7b\u9396\u3002<\/li>\n<li><strong>5. \u4f7f\u7528\u6b7b\u9396\u6aa2\u6e2c\u5de5\u5177\uff1a<\/strong> PostgreSQL \u63d0\u4f9b\u4e86\u5404\u7a2e\u5de5\u5177\u548c\u64f4\u5c55\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5e6b\u52a9\u6aa2\u6e2c\u548c\u5206\u6790\u6b7b\u9396\u3002\u8003\u616e\u4f7f\u7528\u9019\u4e9b\u5de5\u5177\u4f86\u4e3b\u52d5\u8b58\u5225\u548c\u89e3\u6c7a\u6f5b\u5728\u7684\u6b7b\u9396\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n<h2 id=\"conclusion-FEtmAKFewS\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u6b7b\u9396\u53ef\u80fd\u662f\u4e00\u500b\u4ee4\u4eba\u6cae\u55aa\u7684\u554f\u984c\u3002\u7136\u800c\uff0c\u901a\u904e\u7406\u89e3\u6b7b\u9396\u7684\u539f\u56e0\u4e26\u5be6\u65bd\u9810\u9632\u63aa\u65bd\uff0c\u60a8\u53ef\u4ee5\u6e1b\u5c11\u9019\u7a2e\u932f\u8aa4\u7684\u767c\u751f\u3002\u9069\u7576\u7684\u7d22\u5f15\u3001\u6700\u5c0f\u5316\u4e8b\u52d9\u6301\u7e8c\u6642\u9593\u3001\u907f\u514d\u96b1\u5f0f\u9396\u5b9a\u3001\u6392\u5e8f\u9396\u5b9a\u8cc7\u6e90\u7684\u7372\u53d6\uff0c\u4ee5\u53ca\u4f7f\u7528\u6b7b\u9396\u6aa2\u6e2c\u5de5\u5177\uff0c\u90fd\u662f\u9810\u9632\u548c\u89e3\u6c7a\u6b7b\u9396\u60c5\u6cc1\u7684\u91cd\u8981\u6b65\u9a5f\u3002<\/p>\n<h2 id=\"summary-FEtmAKFewS\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u800c\u8a00\u4e4b\uff0c\u5e36\u6709\u932f\u8aa4\u4ee3\u78bc 40P01 \u7684\u300cdeadlock_detected\u300d\u932f\u8aa4\u5728 PostgreSQL \u6578\u64da\u5eab\u4e2d\u662f\u4e00\u500b\u5e38\u898b\u554f\u984c\u3002\u8981\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\uff0c\u8b58\u5225\u6b7b\u9396\u7684\u539f\u56e0\u4e26\u63a1\u53d6\u9810\u9632\u63aa\u65bd\u81f3\u95dc\u91cd\u8981\u3002\u9069\u7576\u7684\u7d22\u5f15\u3001\u6700\u5c0f\u5316\u4e8b\u52d9\u6301\u7e8c\u6642\u9593\u3001\u907f\u514d\u96b1\u5f0f\u9396\u5b9a\u3001\u6392\u5e8f\u9396\u5b9a\u8cc7\u6e90\u7684\u7372\u53d6\uff0c\u4ee5\u53ca\u4f7f\u7528\u6b7b\u9396\u6aa2\u6e2c\u5de5\u5177\uff0c\u90fd\u662f\u9810\u9632\u548c\u89e3\u6c7a\u6b7b\u9396\u60c5\u6cc1\u7684\u6709\u6548\u65b9\u6cd5\u3002\u5982\u679c\u60a8\u9047\u5230\u300cdeadlock_detected\u300d\u932f\u8aa4\uff0c\u6216\u9700\u8981\u5354\u52a9\u8655\u7406 PostgreSQL \u8a17\u7ba1\uff0c\u8acb\u8003\u616e\u806f\u7e6b<a href=\"https:\/\/server.hk\">Server.HK<\/a>\u77ad\u89e3\u53ef\u9760\u9ad8\u6548\u7684 VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4fee\u5fa9 PostgreSQL &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21394","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21394","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=21394"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21394\/revisions"}],"predecessor-version":[{"id":24100,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21394\/revisions\/24100"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}