{"id":179090,"date":"2024-11-08T22:55:21","date_gmt":"2024-11-08T14:55:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179090\/"},"modified":"2024-11-08T22:55:22","modified_gmt":"2024-11-08T14:55:22","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%9a55p03-lock_not_available%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179090\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a55P03 &#8211; lock_not_available\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%9a55p03-lock_not_available%ef%bc%9f-FruqYpEUcm\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a55P03 &#8211; lock_not_available\uff1f<\/h1>\n<p>\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f 55P03 &#8211; lock_not_available\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u7576\u524d\u8acb\u6c42\u7684\u9396\u7121\u6cd5\u7372\u5f97\uff0c\u9019\u53ef\u80fd\u662f\u7531\u65bc\u5176\u4ed6\u4e8b\u52d9\u6301\u6709\u9396\u6216\u7cfb\u7d71\u8cc7\u6e90\u4e0d\u8db3\u6240\u5c0e\u81f4\u7684\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-FruqYpEUcm\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>PostgreSQL \u4f7f\u7528\u9396\u4f86\u4fdd\u8b77\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u7576\u4e00\u500b\u4e8b\u52d9\u9700\u8981\u8a2a\u554f\u67d0\u500b\u8cc7\u6e90\u6642\uff0c\u5b83\u6703\u8acb\u6c42\u76f8\u61c9\u7684\u9396\u3002\u5982\u679c\u8a72\u9396\u5df2\u88ab\u5176\u4ed6\u4e8b\u52d9\u6301\u6709\uff0c\u5247\u6703\u51fa\u73fe 55P03 \u932f\u8aa4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u9577\u6642\u9593\u904b\u884c\u7684\u4e8b\u52d9\uff1a<\/strong>\u5982\u679c\u6709\u4e8b\u52d9\u9577\u6642\u9593\u6301\u6709\u9396\uff0c\u5176\u4ed6\u4e8b\u52d9\u5c07\u7121\u6cd5\u7372\u5f97\u6240\u9700\u7684\u9396\uff0c\u5f9e\u800c\u5c0e\u81f4\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6b7b\u9396\u60c5\u6cc1\uff1a<\/strong>\u7576\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\u6642\uff0c\u6703\u767c\u751f\u6b7b\u9396\uff0c\u9019\u4e5f\u53ef\u80fd\u5c0e\u81f4\u9396\u4e0d\u53ef\u7528\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u9650\u5236\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u7cfb\u7d71\u53ef\u80fd\u9054\u5230\u6700\u5927\u9396\u6578\u91cf\uff0c\u9019\u6703\u5c0e\u81f4\u65b0\u7684\u9396\u8acb\u6c42\u5931\u6557\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-FruqYpEUcm\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u8981\u4fee\u5fa9 55P03 \u932f\u8aa4\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e9%95%b7%e6%99%82%e9%96%93%e9%81%8b%e8%a1%8c%e7%9a%84%e4%ba%8b%e5%8b%99-FruqYpEUcm\">1. \u6aa2\u67e5\u9577\u6642\u9593\u904b\u884c\u7684\u4e8b\u52d9<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u7576\u524d\u6b63\u5728\u904b\u884c\u7684\u4e8b\u52d9\uff1a<\/p>\n<pre><code>SELECT * FROM pg_stat_activity WHERE state = 'active';<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u67d0\u4e9b\u4e8b\u52d9\u904b\u884c\u6642\u9593\u904e\u9577\uff0c\u53ef\u4ee5\u8003\u616e\u7d42\u6b62\u9019\u4e9b\u4e8b\u52d9\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u7d42\u6b62\u7279\u5b9a\u7684\u4e8b\u52d9\uff1a<\/p>\n<pre><code>SELECT pg_terminate_backend(pid);<\/code><\/pre>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5%e6%ad%bb%e9%8e%96%e6%83%85%e6%b3%81-FruqYpEUcm\">2. \u6aa2\u67e5\u6b7b\u9396\u60c5\u6cc1<\/h3>\n<p>PostgreSQL \u63d0\u4f9b\u4e86\u4e00\u500b\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\u3002\u8981\u624b\u52d5\u6aa2\u67e5\u6b7b\u9396\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM pg_locks WHERE NOT granted;<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u6240\u6709\u672a\u88ab\u6388\u4e88\u7684\u9396\uff0c\u5e6b\u52a9\u60a8\u8b58\u5225\u53ef\u80fd\u7684\u6b7b\u9396\u60c5\u6cc1\u3002<\/p>\n<h3 id=\"3-%e5%a2%9e%e5%8a%a0%e9%8e%96%e7%9a%84%e6%95%b8%e9%87%8f-FruqYpEUcm\">3. \u589e\u52a0\u9396\u7684\u6578\u91cf<\/h3>\n<p>\u5982\u679c\u7cfb\u7d71\u7d93\u5e38\u9054\u5230\u6700\u5927\u9396\u6578\u91cf\uff0c\u53ef\u4ee5\u8003\u616e\u8abf\u6574 PostgreSQL \u7684\u914d\u7f6e\u3002\u7de8\u8f2f PostgreSQL \u7684\u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u662f postgresql.conf\uff09\uff0c\u589e\u52a0\u4ee5\u4e0b\u53c3\u6578\uff1a<\/p>\n<pre><code>max_locks_per_transaction = 128<\/code><\/pre>\n<p>\u7136\u5f8c\u91cd\u555f PostgreSQL \u670d\u52d9\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-FruqYpEUcm\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u907f\u514d\u672a\u4f86\u51fa\u73fe 55P03 \u932f\u8aa4\uff0c\u5efa\u8b70\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u76e1\u91cf\u6e1b\u5c11\u4e8b\u52d9\u7684\u6301\u7e8c\u6642\u9593\uff0c\u907f\u514d\u9577\u6642\u9593\u6301\u6709\u9396\u3002<\/li>\n<li>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u7d50\u69cb\u6642\uff0c\u8003\u616e\u4f7f\u7528\u884c\u7d1a\u9396\u800c\u975e\u8868\u7d1a\u9396\u3002<\/li>\n<li>\u5b9a\u671f\u76e3\u63a7\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u53ca\u6642\u767c\u73fe\u548c\u89e3\u6c7a\u6f5b\u5728\u7684\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FruqYpEUcm\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc 55P03 &#8211; lock_not_available \u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u7531\u65bc\u9577\u6642\u9593\u904b\u884c\u7684\u4e8b\u52d9\u3001\u6b7b\u9396\u6216\u8cc7\u6e90\u9650\u5236\u6240\u5f15\u8d77\u3002\u901a\u904e\u6aa2\u67e5\u7576\u524d\u4e8b\u52d9\u3001\u7d42\u6b62\u9577\u6642\u9593\u904b\u884c\u7684\u4e8b\u52d9\u4ee5\u53ca\u8abf\u6574\u7cfb\u7d71\u914d\u7f6e\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u9075\u5faa\u6700\u4f73\u5be6\u8e10\u5c07\u6709\u52a9\u65bc\u6e1b\u5c11\u672a\u4f86\u51fa\u73fe\u6b64\u932f\u8aa4\u7684\u6a5f\u6703\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\uff0c\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u61c9\u7528\u7a0b\u5e8f\u90e8\u7f72\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 55P03 &#8211; lock_not_available\uff0c\u89e3\u6c7a\u9396\u5b9a\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u904b\u884c\u9806\u66a2\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-179090","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179090","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=179090"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179090\/revisions"}],"predecessor-version":[{"id":179091,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179090\/revisions\/179091"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}