{"id":127945,"date":"2024-10-26T10:30:23","date_gmt":"2024-10-26T02:30:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/127945\/"},"modified":"2024-10-26T10:30:24","modified_gmt":"2024-10-26T02:30:24","slug":"redis-%e5%a6%82%e4%bd%95%e9%80%b2%e8%a1%8c%e8%b6%85%e6%99%82%e5%bf%ab%e5%8f%96%e7%9a%84%e6%b8%85%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/127945\/","title":{"rendered":"Redis \u5982\u4f55\u9032\u884c\u8d85\u6642\u5feb\u53d6\u7684\u6e05\u7406"},"content":{"rendered":"<h1 id=\"redis-%e5%a6%82%e4%bd%95%e9%80%b2%e8%a1%8c%e8%b6%85%e6%99%82%e5%bf%ab%e5%8f%96%e7%9a%84%e6%b8%85%e7%90%86-srmDTKlMdK\">Redis \u5982\u4f55\u9032\u884c\u8d85\u6642\u5feb\u53d6\u7684\u6e05\u7406<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0c\u5feb\u53d6\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u6027\u80fd\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5feb\u53d6\u6578\u64da\u7684\u5834\u666f\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u5982\u4f55\u9032\u884c\u8d85\u6642\u5feb\u53d6\u7684\u6e05\u7406\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u5feb\u53d6\u6578\u64da\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%bf%ab%e5%8f%96%e6%a9%9f%e5%88%b6-srmDTKlMdK\">Redis \u7684\u5feb\u53d6\u6a5f\u5236<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u5feb\u53d6\u7b56\u7565\uff0c\u6700\u5e38\u898b\u7684\u5305\u62ec LRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u3001LFU\uff08\u6700\u4e0d\u5e38\u4f7f\u7528\uff09\u548c TTL\uff08\u751f\u5b58\u6642\u9593\uff09\u3002\u9019\u4e9b\u7b56\u7565\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u5167\u5b58\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u4e0d\u53d7\u5f71\u97ff\u3002<\/p>\n<h3 id=\"ttl%ef%bc%88%e7%94%9f%e5%ad%98%e6%99%82%e9%96%93%ef%bc%89-srmDTKlMdK\">TTL\uff08\u751f\u5b58\u6642\u9593\uff09<\/h3>\n<p>TTL \u662f Redis \u4e2d\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u70ba\u6bcf\u500b\u9375\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002\u7576\u9375\u7684\u751f\u5b58\u6642\u9593\u5230\u671f\u5f8c\uff0cRedis \u6703\u81ea\u52d5\u5c07\u5176\u522a\u9664\u3002\u9019\u6a23\u7684\u6a5f\u5236\u4e0d\u50c5\u80fd\u5920\u91cb\u653e\u5167\u5b58\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u6642\u6548\u6027\u3002<\/p>\n<pre><code>SET mykey \"Hello\"\nEXPIRE mykey 10  # \u8a2d\u7f6e mykey \u7684\u751f\u5b58\u6642\u9593\u70ba 10 \u79d2\n<\/code><\/pre>\n<h3 id=\"%e4%b8%bb%e5%8b%95%e8%88%87%e8%a2%ab%e5%8b%95%e6%b8%85%e7%90%86-srmDTKlMdK\">\u4e3b\u52d5\u8207\u88ab\u52d5\u6e05\u7406<\/h3>\n<p>Redis \u7684\u8d85\u6642\u5feb\u53d6\u6e05\u7406\u4e3b\u8981\u5206\u70ba\u4e3b\u52d5\u6e05\u7406\u548c\u88ab\u52d5\u6e05\u7406\u5169\u7a2e\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li><strong>\u4e3b\u52d5\u6e05\u7406\uff1a<\/strong>Redis \u6703\u5b9a\u671f\u6aa2\u67e5\u6240\u6709\u8a2d\u7f6e\u4e86 TTL \u7684\u9375\uff0c\u4e26\u522a\u9664\u90a3\u4e9b\u5df2\u7d93\u904e\u671f\u7684\u9375\u3002\u9019\u500b\u904e\u7a0b\u662f\u7531 Redis \u7684\u4e8b\u4ef6\u5faa\u74b0\u81ea\u52d5\u57f7\u884c\u7684\uff0c\u901a\u5e38\u6bcf 100 \u6beb\u79d2\u9032\u884c\u4e00\u6b21\u6aa2\u67e5\u3002<\/li>\n<li><strong>\u88ab\u52d5\u6e05\u7406\uff1a<\/strong>\u7576\u7528\u6236\u8a2a\u554f\u4e00\u500b\u9375\u6642\uff0c\u5982\u679c\u8a72\u9375\u5df2\u7d93\u904e\u671f\uff0cRedis \u6703\u7acb\u5373\u5c07\u5176\u522a\u9664\u3002\u9019\u6a23\u7684\u65b9\u5f0f\u80fd\u5920\u6e1b\u5c11\u4e3b\u52d5\u6e05\u7406\u7684\u8ca0\u64d4\uff0c\u4f46\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b8%85%e7%90%86%e7%ad%96%e7%95%a5%e7%9a%84%e9%85%8d%e7%bd%ae-srmDTKlMdK\">\u6e05\u7406\u7b56\u7565\u7684\u914d\u7f6e<\/h2>\n<p>Redis \u5141\u8a31\u7528\u6236\u6839\u64da\u9700\u6c42\u914d\u7f6e\u6e05\u7406\u7b56\u7565\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904e\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u6216\u4f7f\u7528\u547d\u4ee4\u884c\u53c3\u6578\u4f86\u8abf\u6574\u4e3b\u52d5\u6e05\u7406\u7684\u983b\u7387\u548c\u7b56\u7565\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8a2d\u7f6e\u4e3b\u52d5\u6e05\u7406\u7684\u983b\u7387\uff1a<\/p>\n<pre><code>CONFIG SET active-expire-effort 1  # \u8a2d\u7f6e\u4e3b\u52d5\u6e05\u7406\u7684\u52aa\u529b\u7a0b\u5ea6\n<\/code><\/pre>\n<p>\u9019\u500b\u53c3\u6578\u7684\u503c\u7bc4\u570d\u662f 1 \u5230 10\uff0c\u6578\u503c\u8d8a\u5927\uff0c\u6e05\u7406\u7684\u983b\u7387\u8d8a\u9ad8\uff0c\u4f46\u4e5f\u6703\u6d88\u8017\u66f4\u591a\u7684 CPU \u8cc7\u6e90\u3002<\/p>\n<h2 id=\"%e7%9b%a3%e6%8e%a7%e8%88%87%e5%84%aa%e5%8c%96-srmDTKlMdK\">\u76e3\u63a7\u8207\u512a\u5316<\/h2>\n<p>\u70ba\u4e86\u78ba\u4fdd Redis \u7684\u6027\u80fd\uff0c\u958b\u767c\u8005\u61c9\u5b9a\u671f\u76e3\u63a7\u5feb\u53d6\u7684\u4f7f\u7528\u60c5\u6cc1\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u63d0\u4f9b\u7684 <code>INFO<\/code> \u547d\u4ee4\u4f86\u67e5\u770b\u7576\u524d\u7684\u5feb\u53d6\u72c0\u614b\uff0c\u5305\u62ec\u9375\u7684\u6578\u91cf\u3001\u904e\u671f\u9375\u7684\u6578\u91cf\u7b49\u4fe1\u606f\uff1a<\/p>\n<pre><code>INFO keyspace\n<\/code><\/pre>\n<p>\u6839\u64da\u9019\u4e9b\u6578\u64da\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8abf\u6574\u5feb\u53d6\u7b56\u7565\uff0c\u512a\u5316\u7cfb\u7d71\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u5982\u679c\u767c\u73fe\u904e\u671f\u9375\u7684\u6578\u91cf\u904e\u591a\uff0c\u53ef\u80fd\u9700\u8981\u8003\u616e\u8abf\u6574 TTL \u7684\u8a2d\u7f6e\u6216\u589e\u52a0\u5167\u5b58\u5bb9\u91cf\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-srmDTKlMdK\">\u7d50\u8ad6<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u8d85\u6642\u5feb\u53d6\u6e05\u7406\u6a5f\u5236\uff0c\u901a\u904e TTL\u3001\u4e3b\u52d5\u8207\u88ab\u52d5\u6e05\u7406\u7b56\u7565\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u7ba1\u7406\u5feb\u53d6\u6578\u64da\u3002\u5b9a\u671f\u76e3\u63a7\u548c\u512a\u5316\u6e05\u7406\u7b56\u7565\uff0c\u80fd\u5920\u9032\u4e00\u6b65\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\uff0c\u78ba\u4fdd\u61c9\u7528\u7a0b\u5f0f\u7684\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u53ca\u5176\u61c9\u7528\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Redis\u8d85\u6642\u5feb\u53d6\u7684\u6e05\u7406\u6a5f\u5236\uff0c\u63d0\u5347\u6548\u80fd\u8207\u8cc7\u6e90\u7ba1\u7406\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5373\u6642\u6027\u8207\u6e96\u78ba\u6027\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-127945","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127945","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=127945"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127945\/revisions"}],"predecessor-version":[{"id":127946,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127945\/revisions\/127946"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=127945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=127945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=127945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}