{"id":117048,"date":"2024-10-24T20:11:43","date_gmt":"2024-10-24T12:11:43","guid":{"rendered":"https:\/\/server.hk\/cnblog\/117048\/"},"modified":"2024-10-24T20:11:44","modified_gmt":"2024-10-24T12:11:44","slug":"redis-%e5%bf%ab%e5%8f%96%e5%a6%82%e4%bd%95%e5%90%88%e7%90%86%e8%a8%ad%e7%bd%ae%e5%a4%a7%e5%b0%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/117048\/","title":{"rendered":"Redis \u5feb\u53d6\u5982\u4f55\u5408\u7406\u8a2d\u7f6e\u5927\u5c0f"},"content":{"rendered":"<h1 id=\"redis-%e5%bf%ab%e5%8f%96%e5%a6%82%e4%bd%95%e5%90%88%e7%90%86%e8%a8%ad%e7%bd%ae%e5%a4%a7%e5%b0%8f-GiAPifxpbg\">Redis \u5feb\u53d6\u5982\u4f55\u5408\u7406\u8a2d\u7f6e\u5927\u5c0f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u5feb\u53d6\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u6027\u80fd\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5feb\u53d6\u5834\u666f\u4e2d\u3002\u7136\u800c\uff0c\u5408\u7406\u8a2d\u7f6e Redis \u7684\u5feb\u53d6\u5927\u5c0f\u5c0d\u65bc\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5408\u7406\u8a2d\u7f6e Redis \u5feb\u53d6\u7684\u5927\u5c0f\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u5efa\u8b70\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e7%90%86%e8%a7%a3-redis-%e7%9a%84%e5%85%a7%e5%ad%98%e7%ae%a1%e7%90%86-GiAPifxpbg\">\u7406\u89e3 Redis \u7684\u5167\u5b58\u7ba1\u7406<\/h2>\n<p>Redis \u662f\u4e00\u500b\u57fa\u65bc\u5167\u5b58\u7684\u6578\u64da\u5eab\uff0c\u6240\u6709\u6578\u64da\u90fd\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u9019\u4f7f\u5f97\u5176\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u975e\u5e38\u5feb\u3002Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u9019\u4e9b\u6578\u64da\u7d50\u69cb\u7684\u4f7f\u7528\u6703\u5f71\u97ff\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u3002<\/p>\n<p>\u5728\u8a2d\u7f6e\u5feb\u53d6\u5927\u5c0f\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3 Redis \u7684\u5167\u5b58\u7ba1\u7406\u6a5f\u5236\u3002Redis \u5141\u8a31\u7528\u6236\u8a2d\u7f6e\u6700\u5927\u5167\u5b58\u9650\u5236\uff0c\u7576\u9054\u5230\u9019\u500b\u9650\u5236\u6642\uff0cRedis \u6703\u6839\u64da\u914d\u7f6e\u7684\u9a45\u9010\u7b56\u7565\u4f86\u522a\u9664\u820a\u6578\u64da\u3002\u9019\u4e9b\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>noeviction<\/strong>\uff1a\u4e0d\u9a45\u9010\u4efb\u4f55\u6578\u64da\uff0c\u7576\u5167\u5b58\u6eff\u6642\uff0c\u5beb\u5165\u64cd\u4f5c\u5c07\u8fd4\u56de\u932f\u8aa4\u3002<\/li>\n<li><strong>allkeys-lru<\/strong>\uff1a\u5f9e\u6240\u6709\u9375\u4e2d\u4f7f\u7528 LRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7b97\u6cd5\u9a45\u9010\u6578\u64da\u3002<\/li>\n<li><strong>volatile-lru<\/strong>\uff1a\u50c5\u5f9e\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\u4e2d\u4f7f\u7528 LRU \u7b97\u6cd5\u9a45\u9010\u6578\u64da\u3002<\/li>\n<li><strong>allkeys-random<\/strong>\uff1a\u96a8\u6a5f\u9a45\u9010\u4efb\u610f\u9375\u3002<\/li>\n<li><strong>volatile-random<\/strong>\uff1a\u96a8\u6a5f\u9a45\u9010\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%90%88%e7%90%86%e8%a8%ad%e7%bd%ae%e5%bf%ab%e5%8f%96%e5%a4%a7%e5%b0%8f-GiAPifxpbg\">\u5982\u4f55\u5408\u7406\u8a2d\u7f6e\u5feb\u53d6\u5927\u5c0f<\/h2>\n<p>\u8a2d\u7f6e Redis \u5feb\u53d6\u5927\u5c0f\u6642\uff0c\u9700\u8981\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u56e0\u7d20\uff1a<\/p>\n<h3 id=\"1-%e6%87%89%e7%94%a8%e9%9c%80%e6%b1%82-GiAPifxpbg\">1. \u61c9\u7528\u9700\u6c42<\/h3>\n<p>\u9996\u5148\uff0c\u4e86\u89e3\u61c9\u7528\u7684\u6578\u64da\u8a2a\u554f\u6a21\u5f0f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u5982\u679c\u61c9\u7528\u7d93\u5e38\u8a2a\u554f\u67d0\u4e9b\u6578\u64da\uff0c\u5247\u61c9\u5c07\u9019\u4e9b\u6578\u64da\u7de9\u5b58\u5728 Redis \u4e2d\u3002\u53ef\u4ee5\u901a\u904e\u5206\u6790\u61c9\u7528\u7684\u65e5\u8a8c\u6216\u4f7f\u7528\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u4f86\u78ba\u5b9a\u54ea\u4e9b\u6578\u64da\u6700\u5e38\u88ab\u8a2a\u554f\u3002<\/p>\n<h3 id=\"2-%e5%8f%af%e7%94%a8%e5%85%a7%e5%ad%98-GiAPifxpbg\">2. \u53ef\u7528\u5167\u5b58<\/h3>\n<p>\u78ba\u4fdd Redis \u7684\u6700\u5927\u5167\u5b58\u8a2d\u7f6e\u4e0d\u8d85\u904e\u4f3a\u670d\u5668\u7684\u53ef\u7528\u5167\u5b58\u3002\u4e00\u822c\u5efa\u8b70\u5c07 Redis \u7684\u6700\u5927\u5167\u5b58\u8a2d\u7f6e\u70ba\u53ef\u7528\u5167\u5b58\u7684 60% \u5230 80%\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u56e0\u5167\u5b58\u4e0d\u8db3\u800c\u5c0e\u81f4\u7684\u7cfb\u7d71\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e5%a4%a7%e5%b0%8f-GiAPifxpbg\">3. \u6578\u64da\u5927\u5c0f<\/h3>\n<p>\u5728\u8a2d\u7f6e\u5feb\u53d6\u5927\u5c0f\u6642\uff0c\u9084\u9700\u8981\u8003\u616e\u6578\u64da\u7684\u5927\u5c0f\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u4f86\u67e5\u770b Redis \u4e2d\u9375\u7684\u5927\u5c0f\uff1a<\/p>\n<pre><code>MEMORY USAGE key_name<\/code><\/pre>\n<p>\u6839\u64da\u6578\u64da\u7684\u5927\u5c0f\u548c\u8a2a\u554f\u983b\u7387\uff0c\u5408\u7406\u8abf\u6574\u5feb\u53d6\u7684\u5927\u5c0f\u3002<\/p>\n<h3 id=\"4-%e9%a9%85%e9%80%90%e7%ad%96%e7%95%a5-GiAPifxpbg\">4. \u9a45\u9010\u7b56\u7565<\/h3>\n<p>\u9078\u64c7\u5408\u9069\u7684\u9a45\u9010\u7b56\u7565\u4e5f\u975e\u5e38\u91cd\u8981\u3002\u6839\u64da\u61c9\u7528\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5167\u5b58\u3002\u4f8b\u5982\uff0c\u5982\u679c\u67d0\u4e9b\u6578\u64da\u662f\u81e8\u6642\u7684\u4e14\u4e0d\u9700\u8981\u9577\u671f\u4fdd\u5b58\uff0c\u53ef\u4ee5\u9078\u64c7\u4f7f\u7528 <strong>volatile-lru<\/strong> \u7b56\u7565\u3002<\/p>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e7%a4%ba%e4%be%8b-GiAPifxpbg\">\u5be6\u969b\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u4e00\u500b\u96fb\u5b50\u5546\u52d9\u7db2\u7ad9\u4f7f\u7528 Redis \u4f86\u5feb\u53d6\u5546\u54c1\u4fe1\u606f\u3002\u7d93\u904e\u5206\u6790\uff0c\u767c\u73fe\u6700\u5e38\u8a2a\u554f\u7684\u5546\u54c1\u6578\u91cf\u7d04\u70ba 1000 \u500b\uff0c\u6bcf\u500b\u5546\u54c1\u7684\u6578\u64da\u5927\u5c0f\u7d04\u70ba 2 KB\u3002\u90a3\u9ebc\uff0c\u6240\u9700\u7684\u5feb\u53d6\u5927\u5c0f\u53ef\u4ee5\u8a08\u7b97\u5982\u4e0b\uff1a<\/p>\n<pre><code>\u5feb\u53d6\u5927\u5c0f = 1000 \u500b\u5546\u54c1 * 2 KB = 2000 KB = 2 MB<\/code><\/pre>\n<p>\u5982\u679c\u4f3a\u670d\u5668\u7684\u53ef\u7528\u5167\u5b58\u70ba 8 GB\uff0c\u5247\u53ef\u4ee5\u5c07 Redis \u7684\u6700\u5927\u5167\u5b58\u8a2d\u7f6e\u70ba 4 GB\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GiAPifxpbg\">\u7e3d\u7d50<\/h2>\n<p>\u5408\u7406\u8a2d\u7f6e Redis \u5feb\u53d6\u7684\u5927\u5c0f\u662f\u63d0\u5347\u61c9\u7528\u6027\u80fd\u7684\u95dc\u9375\u3002\u901a\u904e\u4e86\u89e3\u61c9\u7528\u9700\u6c42\u3001\u53ef\u7528\u5167\u5b58\u3001\u6578\u64da\u5927\u5c0f\u548c\u9a45\u9010\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406 Redis \u7684\u5167\u5b58\u4f7f\u7528\u3002\u9019\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\uff0c\u9084\u80fd\u964d\u4f4e\u4f3a\u670d\u5668\u7684\u8ca0\u64d4\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u60a8\u7684\u61c9\u7528\u548c\u6578\u64da\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5408\u7406\u8a2d\u7f6e Redis \u5feb\u53d6\u5927\u5c0f\uff0c\u4ee5\u63d0\u5347\u6027\u80fd\u548c\u8cc7\u6e90\u5229\u7528\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u5b58\u53d6\u7684\u9ad8\u6548\u6027\u548c\u7a69\u5b9a\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-117048","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/117048","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=117048"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/117048\/revisions"}],"predecessor-version":[{"id":117049,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/117048\/revisions\/117049"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=117048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=117048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=117048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}