{"id":178974,"date":"2024-11-08T21:57:20","date_gmt":"2024-11-08T13:57:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178974\/"},"modified":"2024-11-08T21:57:21","modified_gmt":"2024-11-08T13:57:21","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a40p01-deadlock_detected%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178974\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a40P01 &#8211; deadlock_detected\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a40p01-deadlock_detected-IouBxAuAdL\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a40P01 &#8211; deadlock_detected<\/h1>\n<p>\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f\u932f\u8aa4\u4ee3\u78bc 40P01\uff0c\u8868\u793a\u6aa2\u6e2c\u5230\u6b7b\u9396\uff08deadlock detected\uff09\u3002\u6b7b\u9396\u662f\u4e00\u7a2e\u60c5\u6cc1\uff0c\u7576\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u8cc7\u6e90\u6642\uff0c\u5c0e\u81f4\u6240\u6709\u76f8\u95dc\u4e8b\u52d9\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u63a2\u8a0e\u5982\u4f55\u8b58\u5225\u548c\u4fee\u5fa9 PostgreSQL \u4e2d\u7684\u6b7b\u9396\u554f\u984c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%ad%bb%e9%8e%96%ef%bc%9f-IouBxAuAdL\">\u4ec0\u9ebc\u662f\u6b7b\u9396\uff1f<\/h2>\n<p>\u6b7b\u9396\u767c\u751f\u5728\u591a\u500b\u4e8b\u52d9\u540c\u6642\u904b\u884c\u6642\uff0c\u7576\u4e00\u500b\u4e8b\u52d9\u6301\u6709\u67d0\u500b\u8cc7\u6e90\u4e26\u7b49\u5f85\u53e6\u4e00\u500b\u4e8b\u52d9\u91cb\u653e\u5b83\u6240\u6301\u6709\u7684\u8cc7\u6e90\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u6b7b\u9396\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u5169\u500b\u4e8b\u52d9\uff1a<\/p>\n<ul>\n<li>\u4e8b\u52d9 A \u9396\u5b9a\u8cc7\u6e90 1\uff0c\u4e26\u7b49\u5f85\u8cc7\u6e90 2\u3002<\/li>\n<li>\u4e8b\u52d9 B \u9396\u5b9a\u8cc7\u6e90 2\uff0c\u4e26\u7b49\u5f85\u8cc7\u6e90 1\u3002<\/li>\n<\/ul>\n<p>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u5169\u500b\u4e8b\u52d9\u90fd\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\uff0c\u56e0\u70ba\u5b83\u5011\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u8cc7\u6e90\uff0c\u9019\u5c31\u662f\u6b7b\u9396\u7684\u5178\u578b\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%aa%a2%e6%b8%ac%e6%ad%bb%e9%8e%96-IouBxAuAdL\">\u5982\u4f55\u6aa2\u6e2c\u6b7b\u9396<\/h2>\n<p>PostgreSQL \u5167\u5efa\u4e86\u6b7b\u9396\u6aa2\u6e2c\u6a5f\u5236\uff0c\u7576\u6aa2\u6e2c\u5230\u6b7b\u9396\u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u7d42\u6b62\u5176\u4e2d\u4e00\u500b\u4e8b\u52d9\u4ee5\u89e3\u6c7a\u554f\u984c\u3002\u9019\u901a\u5e38\u6703\u5c0e\u81f4\u932f\u8aa4\u4ee3\u78bc 40P01 \u7684\u51fa\u73fe\u3002\u8981\u6aa2\u6e2c\u6b7b\u9396\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u67e5\u770b\u7576\u524d\u7684\u4e8b\u52d9\u72c0\u614b\uff1a<\/p>\n<pre><code>SELECT * FROM pg_stat_activity WHERE state = 'active';<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u986f\u793a\u6240\u6709\u7576\u524d\u6d3b\u8e8d\u7684\u4e8b\u52d9\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u8b58\u5225\u53ef\u80fd\u7684\u6b7b\u9396\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e4%bf%ae%e5%be%a9%e6%ad%bb%e9%8e%96%e7%9a%84%e7%ad%96%e7%95%a5-IouBxAuAdL\">\u4fee\u5fa9\u6b7b\u9396\u7684\u7b56\u7565<\/h2>\n<p>\u4fee\u5fa9\u6b7b\u9396\u7684\u6700\u4f73\u65b9\u6cd5\u662f\u5f9e\u6839\u672c\u4e0a\u907f\u514d\u5b83\u5011\u7684\u767c\u751f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6709\u6548\u7684\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e4%bf%9d%e4%ba%8b%e5%8b%99%e7%9a%84%e5%9f%b7%e8%a1%8c%e9%a0%86%e5%ba%8f%e4%b8%80%e8%87%b4-IouBxAuAdL\">1. \u78ba\u4fdd\u4e8b\u52d9\u7684\u57f7\u884c\u9806\u5e8f\u4e00\u81f4<\/h3>\n<p>\u5728\u591a\u500b\u4e8b\u52d9\u4e2d\uff0c\u78ba\u4fdd\u6240\u6709\u4e8b\u52d9\u4ee5\u76f8\u540c\u7684\u9806\u5e8f\u8acb\u6c42\u8cc7\u6e90\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4e8b\u52d9 A \u548c\u4e8b\u52d9 B \u90fd\u9700\u8981\u8cc7\u6e90 1 \u548c\u8cc7\u6e90 2\uff0c\u5247\u61c9\u59cb\u7d42\u5148\u8acb\u6c42\u8cc7\u6e90 1\uff0c\u7136\u5f8c\u8acb\u6c42\u8cc7\u6e90 2\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6b7b\u9396\u7684\u53ef\u80fd\u6027\u3002<\/p>\n<h3 id=\"2-%e6%b8%9b%e5%b0%91%e4%ba%8b%e5%8b%99%e7%9a%84%e6%8c%81%e9%8e%96%e6%99%82%e9%96%93-IouBxAuAdL\">2. \u6e1b\u5c11\u4e8b\u52d9\u7684\u6301\u9396\u6642\u9593<\/h3>\n<p>\u76e1\u91cf\u7e2e\u77ed\u4e8b\u52d9\u7684\u57f7\u884c\u6642\u9593\uff0c\u4e26\u5728\u4e0d\u9700\u8981\u6301\u6709\u9396\u7684\u6642\u5019\u53ca\u6642\u91cb\u653e\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u964d\u4f4e\u6b7b\u9396\u7684\u98a8\u96aa\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e9%81%a9%e7%95%b6%e7%9a%84%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-IouBxAuAdL\">3. \u4f7f\u7528\u9069\u7576\u7684\u9694\u96e2\u7d1a\u5225<\/h3>\n<p>\u6839\u64da\u61c9\u7528\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u3002\u8f03\u4f4e\u7684\u9694\u96e2\u7d1a\u5225\uff08\u5982 READ COMMITTED\uff09\u53ef\u80fd\u6703\u6e1b\u5c11\u6b7b\u9396\u7684\u767c\u751f\uff0c\u4f46\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002\u56e0\u6b64\uff0c\u6839\u64da\u5177\u9ad4\u60c5\u6cc1\u9078\u64c7\u5408\u9069\u7684\u9694\u96e2\u7d1a\u5225\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e6%ad%bb%e9%8e%96%e6%97%a5%e8%aa%8c-IouBxAuAdL\">4. \u4f7f\u7528\u6b7b\u9396\u65e5\u8a8c<\/h3>\n<p>\u555f\u7528 PostgreSQL \u7684\u6b7b\u9396\u65e5\u8a8c\u529f\u80fd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5206\u6790\u6b7b\u9396\u7684\u539f\u56e0\u3002\u53ef\u4ee5\u5728 PostgreSQL \u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u8a2d\u7f6e\u4ee5\u4e0b\u53c3\u6578\uff1a<\/p>\n<pre><code>log_lock_waits = on\ndeadlock_timeout = '1s'<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5728\u767c\u751f\u6b7b\u9396\u6642\u8a18\u9304\u8a73\u7d30\u4fe1\u606f\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u9032\u884c\u8abf\u8a66\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-IouBxAuAdL\">\u7e3d\u7d50<\/h2>\n<p>\u6b7b\u9396\u662f PostgreSQL \u4e2d\u5e38\u898b\u7684\u554f\u984c\u4e4b\u4e00\uff0c\u4f46\u901a\u904e\u9069\u7576\u7684\u7b56\u7565\u548c\u6700\u4f73\u5be6\u8e10\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5176\u767c\u751f\u7684\u983b\u7387\u3002\u4e86\u89e3\u6b7b\u9396\u7684\u539f\u56e0\u3001\u6aa2\u6e2c\u65b9\u6cd5\u4ee5\u53ca\u4fee\u5fa9\u7b56\u7565\uff0c\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0c\u4ee5\u7372\u5f97\u66f4\u7a69\u5b9a\u7684\u6027\u80fd\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 40P01 &#8211; deadlock_detected\uff0c\u907f\u514d\u6b7b\u9396\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u7a69\u5b9a\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-178974","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178974","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=178974"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178974\/revisions"}],"predecessor-version":[{"id":178975,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178974\/revisions\/178975"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178974"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178974"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}