{"id":50719,"date":"2024-10-08T13:15:22","date_gmt":"2024-10-08T05:15:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/50719\/"},"modified":"2024-10-08T13:15:22","modified_gmt":"2024-10-08T05:15:22","slug":"nginx-%e6%8c%87%e4%bb%a4%ef%bc%9aproxy_cache_use_stale-%ef%bc%88%e4%bb%a3%e7%90%86%e5%bf%ab%e5%8f%96%e4%bd%bf%e7%94%a8%e9%99%b3%e8%88%8a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/50719\/","title":{"rendered":"Nginx \u6307\u4ee4\uff1aproxy_cache_use_stale \uff08\u4ee3\u7406\u5feb\u53d6\u4f7f\u7528\u9673\u820a\uff09"},"content":{"rendered":"<h1 id=\"nginx-%e6%8c%87%e4%bb%a4%ef%bc%9aproxy_cache_use_stale%ef%bc%88%e4%bb%a3%e7%90%86%e5%bf%ab%e5%8f%96%e4%bd%bf%e7%94%a8%e9%99%b3%e8%88%8a%ef%bc%89-JqMcJuXDyh\">Nginx \u6307\u4ee4\uff1aproxy_cache_use_stale\uff08\u4ee3\u7406\u5feb\u53d6\u4f7f\u7528\u9673\u820a\uff09<\/h1>\n<p>Nginx \u662f\u4e00\u6b3e\u9ad8\u6548\u80fd\u7684\u7db2\u9801\u4f3a\u670d\u5668\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u8ca0\u8f09\u5e73\u8861\u3001\u53cd\u5411\u4ee3\u7406\u53ca\u5feb\u53d6\u7b49\u5834\u666f\u3002\u5728 Nginx \u7684\u914d\u7f6e\u4e2d\uff0c<code>proxy_cache_use_stale<\/code> \u6307\u4ee4\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u9078\u9805\uff0c\u80fd\u5920\u5e6b\u52a9\u7ba1\u7406\u5feb\u53d6\u7684\u4f7f\u7528\u7b56\u7565\uff0c\u7279\u5225\u662f\u5728\u5f8c\u7aef\u4f3a\u670d\u5668\u51fa\u73fe\u6545\u969c\u6216\u5ef6\u9072\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-proxy_cache_use_stale%ef%bc%9f-JqMcJuXDyh\">\u4ec0\u9ebc\u662f proxy_cache_use_stale\uff1f<\/h2>\n<p><code>proxy_cache_use_stale<\/code> \u6307\u4ee4\u5141\u8a31 Nginx \u5728\u5f8c\u7aef\u4f3a\u670d\u5668\u7121\u6cd5\u6b63\u5e38\u97ff\u61c9\u6642\uff0c\u4f7f\u7528\u9673\u820a\u7684\u5feb\u53d6\u5167\u5bb9\u4f86\u56de\u61c9\u5ba2\u6236\u7aef\u8acb\u6c42\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u53ef\u4ee5\u63d0\u9ad8\u7db2\u7ad9\u7684\u53ef\u7528\u6027\uff0c\u6e1b\u5c11\u56e0\u5f8c\u7aef\u4f3a\u670d\u5668\u6545\u969c\u800c\u5c0e\u81f4\u7684\u670d\u52d9\u4e2d\u65b7\u3002<\/p>\n<h2 id=\"%e6%8c%87%e4%bb%a4%e8%aa%9e%e6%b3%95-JqMcJuXDyh\">\u6307\u4ee4\u8a9e\u6cd5<\/h2>\n<pre><code>proxy_cache_use_stale ;<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c \u53ef\u4ee5\u662f\u4ee5\u4e0b\u5e7e\u500b\u9078\u9805\uff1a<\/p>\n<ul>\n<li><code>off<\/code>\uff1a\u4e0d\u4f7f\u7528\u9673\u820a\u5feb\u53d6\uff0c\u7576\u5f8c\u7aef\u4f3a\u670d\u5668\u51fa\u73fe\u554f\u984c\u6642\uff0c\u5c07\u8fd4\u56de\u932f\u8aa4\u3002<\/li>\n<li><code>error<\/code>\uff1a\u7576\u5f8c\u7aef\u4f3a\u670d\u5668\u8fd4\u56de\u932f\u8aa4\u6642\uff0c\u4f7f\u7528\u9673\u820a\u5feb\u53d6\u3002<\/li>\n<li><code>timeout<\/code>\uff1a\u7576\u5f8c\u7aef\u4f3a\u670d\u5668\u8d85\u6642\u6642\uff0c\u4f7f\u7528\u9673\u820a\u5feb\u53d6\u3002<\/li>\n<li><code>invalid_header<\/code>\uff1a\u7576\u5f8c\u7aef\u4f3a\u670d\u5668\u8fd4\u56de\u7121\u6548\u7684\u6a19\u982d\u6642\uff0c\u4f7f\u7528\u9673\u820a\u5feb\u53d6\u3002<\/li>\n<li><code>http_500<\/code>\uff1a\u7576\u5f8c\u7aef\u4f3a\u670d\u5668\u8fd4\u56de 500 \u932f\u8aa4\u6642\uff0c\u4f7f\u7528\u9673\u820a\u5feb\u53d6\u3002<\/li>\n<li><code>http_502<\/code>\uff1a\u7576\u5f8c\u7aef\u4f3a\u670d\u5668\u8fd4\u56de 502 \u932f\u8aa4\u6642\uff0c\u4f7f\u7528\u9673\u820a\u5feb\u53d6\u3002<\/li>\n<li><code>http_503<\/code>\uff1a\u7576\u5f8c\u7aef\u4f3a\u670d\u5668\u8fd4\u56de 503 \u932f\u8aa4\u6642\uff0c\u4f7f\u7528\u9673\u820a\u5feb\u53d6\u3002<\/li>\n<li><code>http_504<\/code>\uff1a\u7576\u5f8c\u7aef\u4f3a\u670d\u5668\u8fd4\u56de 504 \u932f\u8aa4\u6642\uff0c\u4f7f\u7528\u9673\u820a\u5feb\u53d6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-JqMcJuXDyh\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Nginx \u914d\u7f6e\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 <code>proxy_cache_use_stale<\/code> \u6307\u4ee4\uff1a<\/p>\n<pre><code>http {\n    proxy_cache_path \/tmp\/cache levels=1:2 keys_zone=my_cache:10m max_size=1g inactive=60m use_temp_path=off;\n\n    server {\n        listen 80;\n        server_name example.com;\n\n        location \/ {\n            proxy_pass http:\/\/backend_server;\n            proxy_cache my_cache;\n            proxy_cache_use_stale error timeout http_500 http_502 http_503 http_504;\n        }\n    }\n}<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u7576\u5f8c\u7aef\u4f3a\u670d\u5668\u51fa\u73fe\u932f\u8aa4\u6216\u8d85\u6642\u6642\uff0cNginx \u5c07\u4f7f\u7528\u9673\u820a\u7684\u5feb\u53d6\u5167\u5bb9\u4f86\u56de\u61c9\u8acb\u6c42\uff0c\u5f9e\u800c\u63d0\u9ad8\u7db2\u7ad9\u7684\u53ef\u7528\u6027\u3002<\/p>\n<h2 id=\"%e5%84%aa%e9%bb%9e%e8%88%87%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-JqMcJuXDyh\">\u512a\u9ede\u8207\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u4f7f\u7528 <code>proxy_cache_use_stale<\/code> \u6307\u4ee4\u7684\u4e3b\u8981\u512a\u9ede\u5728\u65bc\u80fd\u5920\u63d0\u5347\u7db2\u7ad9\u7684\u7a69\u5b9a\u6027\u548c\u7528\u6236\u9ad4\u9a57\u3002\u5373\u4f7f\u5f8c\u7aef\u4f3a\u670d\u5668\u51fa\u73fe\u554f\u984c\uff0c\u4f7f\u7528\u8005\u4ecd\u7136\u53ef\u4ee5\u7372\u5f97\u6700\u8fd1\u7684\u5feb\u53d6\u5167\u5bb9\uff0c\u9019\u5c0d\u65bc\u4e00\u4e9b\u9700\u8981\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\u7279\u5225\u91cd\u8981\u3002<\/p>\n<p>\u7136\u800c\uff0c\u4f7f\u7528\u9673\u820a\u5feb\u53d6\u4e5f\u6709\u5176\u98a8\u96aa\u3002\u82e5\u5f8c\u7aef\u4f3a\u670d\u5668\u7684\u6578\u64da\u7d93\u5e38\u66f4\u65b0\uff0c\u4f7f\u7528\u9673\u820a\u5feb\u53d6\u53ef\u80fd\u6703\u5c0e\u81f4\u7528\u6236\u7372\u5f97\u904e\u6642\u7684\u4fe1\u606f\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528\u6b64\u6307\u4ee4\u6642\uff0c\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u5408\u7406\u914d\u7f6e\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-JqMcJuXDyh\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u7684\u4f86\u8aaa\uff0c<code>proxy_cache_use_stale<\/code> \u662f Nginx \u4e2d\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u6307\u4ee4\uff0c\u80fd\u5920\u5728\u5f8c\u7aef\u4f3a\u670d\u5668\u51fa\u73fe\u554f\u984c\u6642\uff0c\u4fdd\u8b49\u7db2\u7ad9\u7684\u53ef\u7528\u6027\u3002\u900f\u904e\u5408\u7406\u7684\u914d\u7f6e\uff0c\u7db2\u7ad9\u7ba1\u7406\u54e1\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u5347\u7528\u6236\u9ad4\u9a57\uff0c\u6e1b\u5c11\u56e0\u4f3a\u670d\u5668\u6545\u969c\u800c\u9020\u6210\u7684\u5f71\u97ff\u3002\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\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 Nginx \u7684 proxy_cache_use_stale \u6307\u4ee4\uff0c\u5982\u4f55\u5728\u4ee3\u7406\u5feb\u53d6\u4e2d\u4f7f\u7528\u9673\u820a\u8cc7\u6599\u4ee5\u63d0\u9ad8\u7db2\u7ad9\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-50719","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/50719","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=50719"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/50719\/revisions"}],"predecessor-version":[{"id":50720,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/50719\/revisions\/50720"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=50719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=50719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=50719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}