{"id":129467,"date":"2024-10-26T21:51:21","date_gmt":"2024-10-26T13:51:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129467\/"},"modified":"2024-10-26T21:51:22","modified_gmt":"2024-10-26T13:51:22","slug":"redis%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%e6%b1%82%e8%81%b7%e8%80%85%e5%bf%85%e7%9f%a5%e9%9d%a2%e8%a9%a6%e9%a1%8c%ef%bc%88redis%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%e9%9d%a2%e8%a9%a6%e9%a1%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129467\/","title":{"rendered":"Redis\u6dd8\u6c70\u7b56\u7565\u6c42\u8077\u8005\u5fc5\u77e5\u9762\u8a66\u984c\uff08redis\u6dd8\u6c70\u7b56\u7565\u9762\u8a66\u984c\uff09"},"content":{"rendered":"<h1 id=\"redis%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%e6%b1%82%e8%81%b7%e8%80%85%e5%bf%85%e7%9f%a5%e9%9d%a2%e8%a9%a6%e9%a1%8c-OLNokVVJqw\">Redis\u6dd8\u6c70\u7b56\u7565\u6c42\u8077\u8005\u5fc5\u77e5\u9762\u8a66\u984c<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6280\u8853\u74b0\u5883\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u5c0d\u65bc\u6c42\u8077\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3Redis\u7684\u6dd8\u6c70\u7b56\u7565\u4e0d\u50c5\u80fd\u5e6b\u52a9\u4ed6\u5011\u5728\u9762\u8a66\u4e2d\u812b\u7a4e\u800c\u51fa\uff0c\u9084\u80fd\u589e\u5f37\u4ed6\u5011\u5728\u5be6\u969b\u5de5\u4f5c\u4e2d\u7684\u80fd\u529b\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7684\u6dd8\u6c70\u7b56\u7565\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u9762\u8a66\u4e2d\u53ef\u80fd\u6703\u9047\u5230\u7684\u76f8\u95dc\u554f\u984c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e7%9a%84%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%ef%bc%9f-OLNokVVJqw\">\u4ec0\u9ebc\u662fRedis\u7684\u6dd8\u6c70\u7b56\u7565\uff1f<\/h2>\n<p>Redis\u7684\u6dd8\u6c70\u7b56\u7565\u662f\u6307\u5728\u5167\u5b58\u9054\u5230\u9650\u5236\u6642\uff0cRedis\u5982\u4f55\u9078\u64c7\u522a\u9664\u67d0\u4e9b\u9375\u4ee5\u91cb\u653e\u7a7a\u9593\u3002\u9019\u4e9b\u7b56\u7565\u5c0d\u65bc\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u6dd8\u6c70\u7b56\u7565\uff0c\u8b93\u7528\u6236\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u6700\u5408\u9069\u7684\u65b9\u6848\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%e9%a1%9e%e5%9e%8b-OLNokVVJqw\">Redis\u7684\u6dd8\u6c70\u7b56\u7565\u985e\u578b<\/h2>\n<ul>\n<li><strong>noeviction<\/strong>: \u7576\u5167\u5b58\u9054\u5230\u9650\u5236\u6642\uff0c\u7121\u6cd5\u518d\u5beb\u5165\u65b0\u7684\u9375\uff0c\u6703\u8fd4\u56de\u932f\u8aa4\u3002<\/li>\n<li><strong>allkeys-lru<\/strong>: \u5f9e\u6240\u6709\u9375\u4e2d\u9078\u64c7\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u9375\u9032\u884c\u522a\u9664\u3002<\/li>\n<li><strong>volatile-lru<\/strong>: \u53ea\u5f9e\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\u4e2d\u9078\u64c7\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u9375\u9032\u884c\u522a\u9664\u3002<\/li>\n<li><strong>allkeys-random<\/strong>: \u96a8\u6a5f\u522a\u9664\u4e00\u500b\u9375\u3002<\/li>\n<li><strong>volatile-random<\/strong>: \u96a8\u6a5f\u522a\u9664\u4e00\u500b\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\u3002<\/li>\n<li><strong>volatile-ttl<\/strong>: \u522a\u9664\u5373\u5c07\u904e\u671f\u7684\u9375\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%9d%a2%e8%a9%a6%e4%b8%ad%e5%8f%af%e8%83%bd%e9%81%87%e5%88%b0%e7%9a%84%e5%95%8f%e9%a1%8c-OLNokVVJqw\">\u9762\u8a66\u4e2d\u53ef\u80fd\u9047\u5230\u7684\u554f\u984c<\/h2>\n<p>\u5728\u9762\u8a66\u4e2d\uff0c\u8003\u5b98\u53ef\u80fd\u6703\u91dd\u5c0dRedis\u7684\u6dd8\u6c70\u7b56\u7565\u63d0\u51fa\u4e00\u4e9b\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u554f\u984c\u53ca\u5176\u89e3\u7b54\uff1a<\/p>\n<h3 id=\"1-%e4%bb%80%e9%ba%bc%e6%98%aflru%e7%ae%97%e6%b3%95%ef%bc%9f-OLNokVVJqw\">1. \u4ec0\u9ebc\u662fLRU\u7b97\u6cd5\uff1f<\/h3>\n<p>LRU\uff08Least Recently Used\uff09\u7b97\u6cd5\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u6dd8\u6c70\u7b56\u7565\uff0c\u65e8\u5728\u522a\u9664\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u6578\u64da\u3002Redis\u4f7f\u7528LRU\u7b97\u6cd5\u4f86\u7ba1\u7406\u5167\u5b58\uff0c\u78ba\u4fdd\u6700\u5e38\u7528\u7684\u6578\u64da\u80fd\u5920\u4fdd\u7559\u5728\u5167\u5b58\u4e2d\u3002<\/p>\n<h3 id=\"2-%e4%bd%a0%e6%9c%83%e9%81%b8%e6%93%87%e5%93%aa%e7%a8%ae%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%ef%bc%9f%e7%82%ba%e4%bb%80%e9%ba%bc%ef%bc%9f-OLNokVVJqw\">2. \u4f60\u6703\u9078\u64c7\u54ea\u7a2e\u6dd8\u6c70\u7b56\u7565\uff1f\u70ba\u4ec0\u9ebc\uff1f<\/h3>\n<p>\u9078\u64c7\u6dd8\u6c70\u7b56\u7565\u53d6\u6c7a\u65bc\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\u3002\u5982\u679c\u61c9\u7528\u9700\u8981\u9ad8\u53ef\u7528\u6027\u4e14\u4e0d\u5e0c\u671b\u56e0\u70ba\u5167\u5b58\u4e0d\u8db3\u800c\u5c0e\u81f4\u5beb\u5165\u5931\u6557\uff0c\u53ef\u4ee5\u9078\u64c7<code>allkeys-lru<\/code>\u7b56\u7565\u3002\u5982\u679c\u61c9\u7528\u4e2d\u6709\u5927\u91cf\u7684\u904e\u671f\u9375\uff0c\u5247<code>volatile-lru<\/code>\u53ef\u80fd\u66f4\u5408\u9069\u3002<\/p>\n<h3 id=\"3-%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%aeredis%e7%9a%84%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%ef%bc%9f-OLNokVVJqw\">3. \u5982\u4f55\u914d\u7f6eRedis\u7684\u6dd8\u6c70\u7b56\u7565\uff1f<\/h3>\n<p>\u53ef\u4ee5\u901a\u904e\u4fee\u6539Redis\u7684\u914d\u7f6e\u6587\u4ef6\u4f86\u8a2d\u7f6e\u6dd8\u6c70\u7b56\u7565\u3002\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u4f7f\u7528<code>maxmemory-policy<\/code>\u53c3\u6578\u4f86\u6307\u5b9a\u6240\u9700\u7684\u7b56\u7565\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>maxmemory-policy allkeys-lru<\/code><\/pre>\n<h3 id=\"4-redis%e7%9a%84%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%e5%b0%8d%e6%80%a7%e8%83%bd%e6%9c%89%e4%bd%95%e5%bd%b1%e9%9f%bf%ef%bc%9f-OLNokVVJqw\">4. Redis\u7684\u6dd8\u6c70\u7b56\u7565\u5c0d\u6027\u80fd\u6709\u4f55\u5f71\u97ff\uff1f<\/h3>\n<p>\u4e0d\u540c\u7684\u6dd8\u6c70\u7b56\u7565\u6703\u5c0d\u6027\u80fd\u7522\u751f\u4e0d\u540c\u7684\u5f71\u97ff\u3002\u4f8b\u5982\uff0c<code>allkeys-lru<\/code>\u53ef\u80fd\u6703\u5c0e\u81f4\u66f4\u9ad8\u7684CPU\u4f7f\u7528\u7387\uff0c\u56e0\u70ba\u5b83\u9700\u8981\u8ffd\u8e64\u6240\u6709\u9375\u7684\u4f7f\u7528\u60c5\u6cc1\u3002\u800c<code>noeviction<\/code>\u5247\u53ef\u80fd\u5c0e\u81f4\u5beb\u5165\u64cd\u4f5c\u5931\u6557\uff0c\u5f71\u97ff\u61c9\u7528\u7684\u53ef\u7528\u6027\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-OLNokVVJqw\">\u7e3d\u7d50<\/h2>\n<p>\u4e86\u89e3Redis\u7684\u6dd8\u6c70\u7b56\u7565\u5c0d\u65bc\u6c42\u8077\u8005\u4f86\u8aaa\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u56e0\u70ba\u9019\u4e0d\u50c5\u80fd\u5e6b\u52a9\u4ed6\u5011\u5728\u9762\u8a66\u4e2d\u8868\u73fe\u51fa\u8272\uff0c\u9084\u80fd\u5728\u5be6\u969b\u5de5\u4f5c\u4e2d\u6709\u6548\u7ba1\u7406\u5167\u5b58\u3002\u638c\u63e1\u9019\u4e9b\u77e5\u8b58\u5c07\u4f7f\u6c42\u8077\u8005\u5728\u6280\u8853\u9818\u57df\u4e2d\u66f4\u5177\u7af6\u722d\u529b\u3002\u5982\u679c\u60a8\u5c0d\u65bcVPS\u3001<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Redis\u6dd8\u6c70\u7b56\u7565\u7684\u9762\u8a66\u984c\uff0c\u52a9\u4f60\u5728\u6c42\u8077\u904e\u7a0b\u4e2d\u812b\u7a4e\u800c\u51fa\uff0c\u638c\u63e1\u95dc\u9375\u77e5\u8b58\uff0c\u63d0\u5347\u9762\u8a66\u6210\u529f\u7387\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-129467","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129467","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=129467"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129467\/revisions"}],"predecessor-version":[{"id":129468,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129467\/revisions\/129468"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}