{"id":179166,"date":"2024-11-08T23:33:26","date_gmt":"2024-11-08T15:33:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179166\/"},"modified":"2024-11-08T23:33:26","modified_gmt":"2024-11-08T15:33:26","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%9ahv014-fdw_too_many_handles%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179166\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV014 &#8211; fdw_too_many_handles\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%9ahv014-fdw_too_many_handles-JxVgxDzFpq\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV014 &#8211; fdw_too_many_handles<\/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\u662f HV014 &#8211; fdw_too_many_handles\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u5916\u90e8\u6578\u64da\u5305\uff08Foreign Data Wrapper, FDW\uff09\u6709\u95dc\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u7684\u5916\u90e8\u6578\u64da\u6e90\u6642\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%e4%bb%a3%e7%a2%bc-hv014-%e7%9a%84%e8%83%8c%e6%99%af-JxVgxDzFpq\">\u932f\u8aa4\u4ee3\u78bc HV014 \u7684\u80cc\u666f<\/h2>\n<p>HV014 \u932f\u8aa4\u4ee3\u78bc\u8868\u793a PostgreSQL \u5728\u4f7f\u7528\u5916\u90e8\u6578\u64da\u5305\u6642\uff0c\u5df2\u7d93\u9054\u5230\u4e86\u6700\u5927\u53e5\u67c4\u6578\u91cf\u7684\u9650\u5236\u3002FDW \u5141\u8a31 PostgreSQL \u9023\u63a5\u548c\u67e5\u8a62\u5176\u4ed6\u6578\u64da\u5eab\u6216\u6578\u64da\u6e90\uff0c\u9019\u5728\u6578\u64da\u6574\u5408\u548c\u591a\u6578\u64da\u6e90\u67e5\u8a62\u4e2d\u975e\u5e38\u6709\u7528\u3002\u7136\u800c\uff0c\u7576\u540c\u6642\u6253\u958b\u7684\u53e5\u67c4\u6578\u91cf\u8d85\u904e PostgreSQL \u7684\u9650\u5236\u6642\uff0c\u5c31\u6703\u51fa\u73fe HV014 \u932f\u8aa4\u3002<\/p>\n<h2 id=\"hv014-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0-JxVgxDzFpq\">HV014 \u932f\u8aa4\u7684\u5e38\u898b\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u904e\u591a\u7684\u5916\u90e8\u9023\u63a5\uff1a<\/strong>\u7576\u61c9\u7528\u7a0b\u5e8f\u540c\u6642\u5617\u8a66\u8207\u591a\u500b\u5916\u90e8\u6578\u64da\u6e90\u5efa\u7acb\u9023\u63a5\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u53e5\u67c4\u6578\u91cf\u8d85\u904e\u9650\u5236\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u5982\u679c\u5728\u67e5\u8a62\u904e\u7a0b\u4e2d\u672a\u6b63\u78ba\u95dc\u9589\u4e0d\u518d\u4f7f\u7528\u7684\u53e5\u67c4\uff0c\u5c07\u6703\u5c0e\u81f4\u8cc7\u6e90\u7684\u6d6a\u8cbb\u548c\u6700\u7d42\u7684\u932f\u8aa4\u3002<\/li>\n<li><strong>\u914d\u7f6e\u554f\u984c\uff1a<\/strong>PostgreSQL \u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u53ef\u80fd\u672a\u6b63\u78ba\u8a2d\u7f6e\u6700\u5927\u53e5\u67c4\u6578\u91cf\uff0c\u5c0e\u81f4\u5728\u6b63\u5e38\u4f7f\u7528\u60c5\u6cc1\u4e0b\u4e5f\u6703\u51fa\u73fe\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba-hv014-%e9%8c%af%e8%aa%a4%e7%9a%84%e6%ad%a5%e9%a9%9f-JxVgxDzFpq\">\u89e3\u6c7a HV014 \u932f\u8aa4\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%92%8c%e8%aa%bf%e6%95%b4-postgresql-%e9%85%8d%e7%bd%ae-JxVgxDzFpq\">1. \u6aa2\u67e5\u548c\u8abf\u6574 PostgreSQL \u914d\u7f6e<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u6aa2\u67e5 PostgreSQL \u7684\u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u662f postgresql.conf\uff09\uff0c\u78ba\u4fdd\u4ee5\u4e0b\u53c3\u6578\u8a2d\u7f6e\u5408\u7406\uff1a<\/p>\n<pre><code>max_connections = 100  # \u6839\u64da\u9700\u8981\u8abf\u6574\n<\/code><\/pre>\n<p>\u9019\u500b\u53c3\u6578\u63a7\u5236\u540c\u6642\u9023\u63a5\u7684\u6700\u5927\u6578\u91cf\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002\u8acb\u6ce8\u610f\uff0c\u589e\u52a0\u6b64\u503c\u53ef\u80fd\u6703\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u8b39\u614e\u64cd\u4f5c\u3002<\/p>\n<h3 id=\"2-%e5%84%aa%e5%8c%96%e5%a4%96%e9%83%a8%e6%95%b8%e6%93%9a%e5%8c%85%e7%9a%84%e4%bd%bf%e7%94%a8-JxVgxDzFpq\">2. \u512a\u5316\u5916\u90e8\u6578\u64da\u5305\u7684\u4f7f\u7528<\/h3>\n<p>\u5728\u4f7f\u7528 FDW \u6642\uff0c\u61c9\u8a72\u76e1\u91cf\u6e1b\u5c11\u540c\u6642\u6253\u958b\u7684\u9023\u63a5\u6578\u91cf\u3002\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u9023\u63a5\u6c60\u6280\u8853\uff0c\u5c07\u591a\u500b\u8acb\u6c42\u5408\u4f75\u5230\u4e00\u500b\u9023\u63a5\u4e2d\u3002<\/li>\n<li>\u5728\u67e5\u8a62\u5b8c\u6210\u5f8c\uff0c\u53ca\u6642\u95dc\u9589\u4e0d\u518d\u4f7f\u7528\u7684\u53e5\u67c4\u3002<\/li>\n<li>\u5c0d\u65bc\u4e0d\u5e38\u7528\u7684\u5916\u90e8\u6578\u64da\u6e90\uff0c\u53ef\u4ee5\u8003\u616e\u5b9a\u671f\u52a0\u8f09\u6578\u64da\u5230\u672c\u5730\u6578\u64da\u5eab\u4e2d\uff0c\u800c\u4e0d\u662f\u6bcf\u6b21\u90fd\u9032\u884c\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<h3 id=\"3-%e7%9b%a3%e6%8e%a7%e5%92%8c%e6%8e%92%e6%9f%a5%e8%b3%87%e6%ba%90%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-JxVgxDzFpq\">3. \u76e3\u63a7\u548c\u6392\u67e5\u8cc7\u6e90\u4f7f\u7528\u60c5\u6cc1<\/h3>\n<p>\u4f7f\u7528 PostgreSQL \u7684\u5167\u5efa\u5de5\u5177\uff08\u5982 pg_stat_activity\uff09\u4f86\u76e3\u63a7\u7576\u524d\u7684\u9023\u63a5\u548c\u53e5\u67c4\u4f7f\u7528\u60c5\u6cc1\u3002\u9019\u53ef\u4ee5\u5e6b\u52a9\u60a8\u8b58\u5225\u54ea\u4e9b\u67e5\u8a62\u6216\u61c9\u7528\u7a0b\u5e8f\u6b63\u5728\u6d88\u8017\u904e\u591a\u7684\u8cc7\u6e90\u3002<\/p>\n<pre><code>SELECT * FROM pg_stat_activity;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-JxVgxDzFpq\">\u7e3d\u7d50<\/h2>\n<p>HV014 &#8211; fdw_too_many_handles \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u904e\u591a\u7684\u5916\u90e8\u9023\u63a5\u6216\u4e0d\u7576\u7684\u8cc7\u6e90\u7ba1\u7406\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u548c\u8abf\u6574 PostgreSQL \u7684\u914d\u7f6e\u3001\u512a\u5316\u5916\u90e8\u6578\u64da\u5305\u7684\u4f7f\u7528\u4ee5\u53ca\u76e3\u63a7\u8cc7\u6e90\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\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\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc HV014 &#8211; fdw_too_many_handles \u7684\u65b9\u6cd5\uff0c\u5e6b\u52a9\u60a8\u89e3\u6c7a\u5916\u90e8\u6578\u64da\u5305\u88dd\u5668\u7684\u53e5\u67c4\u904e\u591a\u554f\u984c\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-179166","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179166","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=179166"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179166\/revisions"}],"predecessor-version":[{"id":179167,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179166\/revisions\/179167"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179166"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}