{"id":179156,"date":"2024-11-08T23:28:17","date_gmt":"2024-11-08T15:28:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179156\/"},"modified":"2024-11-08T23:28:18","modified_gmt":"2024-11-08T15:28:18","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%9ahv00n-fdw_unable_to_establish_connection%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179156\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV00N &#8211; fdw_unable_to_establish_connection\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%9ahv00n-fdw_unable_to_establish_connection-GaoRFCkEts\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV00N &#8211; fdw_unable_to_establish_connection<\/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 HV00N\uff0c\u9019\u901a\u5e38\u8207\u5916\u90e8\u6578\u64da\u5305\uff08Foreign Data Wrapper, FDW\uff09\u9023\u63a5\u554f\u984c\u6709\u95dc\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e HV00N \u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u554f\u984c\u3002<\/p>\n<h2 id=\"hv00n-%e9%8c%af%e8%aa%a4%e7%9a%84%e8%83%8c%e6%99%af-GaoRFCkEts\">HV00N \u932f\u8aa4\u7684\u80cc\u666f<\/h2>\n<p>HV00N \u932f\u8aa4\u4ee3\u78bc\u8868\u793a PostgreSQL \u7121\u6cd5\u5efa\u7acb\u8207\u5916\u90e8\u6578\u64da\u6e90\u7684\u9023\u63a5\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4f7f\u7528 FDW \u9032\u884c\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u6642\u3002FDW \u5141\u8a31\u7528\u6236\u5728 PostgreSQL \u4e2d\u67e5\u8a62\u5176\u4ed6\u6578\u64da\u5eab\u7684\u6578\u64da\uff0c\u9019\u5c0d\u65bc\u6574\u5408\u591a\u500b\u6578\u64da\u6e90\u975e\u5e38\u6709\u7528\u3002\u7136\u800c\uff0c\u7576\u9023\u63a5\u5931\u6557\u6642\uff0c\u5c07\u6703\u51fa\u73fe HV00N \u932f\u8aa4\u3002<\/p>\n<h2 id=\"hv00n-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0-GaoRFCkEts\">HV00N \u932f\u8aa4\u7684\u5e38\u898b\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u7db2\u7d61\u554f\u984c\uff1a<\/strong>\u5982\u679c PostgreSQL \u4f3a\u670d\u5668\u7121\u6cd5\u8a2a\u554f\u5916\u90e8\u6578\u64da\u6e90\u7684\u7db2\u7d61\uff0c\u5247\u6703\u5c0e\u81f4\u9023\u63a5\u5931\u6557\u3002<\/li>\n<li><strong>\u914d\u7f6e\u932f\u8aa4\uff1a<\/strong>FDW \u7684\u914d\u7f6e\u4e0d\u6b63\u78ba\uff0c\u4f8b\u5982\u7528\u6236\u540d\u3001\u5bc6\u78bc\u6216\u6578\u64da\u5eab\u540d\u7a31\u932f\u8aa4\uff0c\u6703\u5c0e\u81f4\u7121\u6cd5\u5efa\u7acb\u9023\u63a5\u3002<\/li>\n<li><strong>\u9632\u706b\u7246\u8a2d\u7f6e\uff1a<\/strong>\u9632\u706b\u7246\u53ef\u80fd\u6703\u963b\u6b62 PostgreSQL \u8207\u5916\u90e8\u6578\u64da\u6e90\u4e4b\u9593\u7684\u901a\u4fe1\u3002<\/li>\n<li><strong>\u5916\u90e8\u6578\u64da\u6e90\u4e0d\u53ef\u7528\uff1a<\/strong>\u5982\u679c\u5916\u90e8\u6578\u64da\u6e90\u672c\u8eab\u51fa\u73fe\u6545\u969c\u6216\u7dad\u8b77\uff0c\u5247\u7121\u6cd5\u5efa\u7acb\u9023\u63a5\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bf%ae%e5%be%a9-hv00n-%e9%8c%af%e8%aa%a4%e7%9a%84%e6%ad%a5%e9%a9%9f-GaoRFCkEts\">\u4fee\u5fa9 HV00N \u932f\u8aa4\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e7%b6%b2%e7%b5%a1%e9%80%a3%e6%8e%a5-GaoRFCkEts\">1. \u6aa2\u67e5\u7db2\u7d61\u9023\u63a5<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd PostgreSQL \u4f3a\u670d\u5668\u80fd\u5920\u8a2a\u554f\u5916\u90e8\u6578\u64da\u6e90\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u9023\u63a5\uff1a<\/p>\n<pre><code>ping <\/code><\/pre>\n<p>\u5982\u679c\u7121\u6cd5 ping \u901a\uff0c\u5247\u9700\u8981\u6aa2\u67e5\u7db2\u7d61\u8a2d\u7f6e\u6216\u806f\u7e6b\u7db2\u7d61\u7ba1\u7406\u54e1\u3002<\/p>\n<h3 id=\"2-%e9%a9%97%e8%ad%89-fdw-%e9%85%8d%e7%bd%ae-GaoRFCkEts\">2. \u9a57\u8b49 FDW \u914d\u7f6e<\/h3>\n<p>\u6aa2\u67e5 FDW \u7684\u914d\u7f6e\u662f\u5426\u6b63\u78ba\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u5916\u90e8\u4f3a\u670d\u5668\u7684\u8a2d\u7f6e\uff1a<\/p>\n<pre><code>SELECT * FROM pg_foreign_server;<\/code><\/pre>\n<p>\u78ba\u4fdd\u6240\u6709\u7684\u53c3\u6578\uff08\u5982\u4e3b\u6a5f\u540d\u3001\u7aef\u53e3\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\uff09\u90fd\u662f\u6b63\u78ba\u7684\u3002\u5982\u679c\u9700\u8981\uff0c\u53ef\u4ee5\u91cd\u65b0\u5275\u5efa\u5916\u90e8\u4f3a\u670d\u5668\u914d\u7f6e\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e9%98%b2%e7%81%ab%e7%89%86%e8%a8%ad%e7%bd%ae-GaoRFCkEts\">3. \u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e<\/h3>\n<p>\u78ba\u4fdd\u9632\u706b\u7246\u5141\u8a31 PostgreSQL \u8207\u5916\u90e8\u6578\u64da\u6e90\u4e4b\u9593\u7684\u901a\u4fe1\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u9632\u706b\u7246\u898f\u5247\uff1a<\/p>\n<pre><code>sudo iptables -L<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u963b\u6b62\u9023\u63a5\u7684\u898f\u5247\uff0c\u5247\u9700\u8981\u9032\u884c\u76f8\u61c9\u7684\u8abf\u6574\u3002<\/p>\n<h3 id=\"4-%e7%a2%ba%e8%aa%8d%e5%a4%96%e9%83%a8%e6%95%b8%e6%93%9a%e6%ba%90%e7%9a%84%e7%8b%80%e6%85%8b-GaoRFCkEts\">4. \u78ba\u8a8d\u5916\u90e8\u6578\u64da\u6e90\u7684\u72c0\u614b<\/h3>\n<p>\u6aa2\u67e5\u5916\u90e8\u6578\u64da\u6e90\u662f\u5426\u6b63\u5e38\u904b\u884c\u3002\u53ef\u4ee5\u5617\u8a66\u76f4\u63a5\u9023\u63a5\u5230\u8a72\u6578\u64da\u6e90\uff0c\u78ba\u4fdd\u5176\u53ef\u7528\u6027\u3002\u5982\u679c\u5916\u90e8\u6578\u64da\u6e90\u6b63\u5728\u7dad\u8b77\u6216\u51fa\u73fe\u6545\u969c\uff0c\u5247\u9700\u8981\u7b49\u5f85\u5176\u6062\u5fa9\u6b63\u5e38\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-GaoRFCkEts\">\u7d50\u8ad6<\/h2>\n<p>HV00N \u932f\u8aa4\u4ee3\u78bc\u901a\u5e38\u662f\u7531\u65bc\u7db2\u7d61\u554f\u984c\u3001\u914d\u7f6e\u932f\u8aa4\u6216\u5916\u90e8\u6578\u64da\u6e90\u4e0d\u53ef\u7528\u7b49\u539f\u56e0\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u7db2\u7d61\u9023\u63a5\u3001\u9a57\u8b49 FDW \u914d\u7f6e\u3001\u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e\u4ee5\u53ca\u78ba\u8a8d\u5916\u90e8\u6578\u64da\u6e90\u7684\u72c0\u614b\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc HV00N &#8211; fdw_unable_to_establish_connection\uff0c\u89e3\u6c7a\u5916\u90e8\u6578\u64da\u5305\u9023\u63a5\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-179156","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179156","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=179156"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179156\/revisions"}],"predecessor-version":[{"id":179157,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179156\/revisions\/179157"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}