{"id":188434,"date":"2024-11-11T22:41:26","date_gmt":"2024-11-11T14:41:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188434\/"},"modified":"2024-11-11T22:41:28","modified_gmt":"2024-11-11T14:41:28","slug":"%e6%8e%a2%e7%a9%b6%e6%b7%b1%e5%85%a5redis%e6%9f%a5%e7%9c%8b%e5%85%a7%e5%ad%98%e5%91%bd%e4%bb%a4%ef%bc%88redis%e6%9f%a5%e7%9c%8b%e5%85%a7%e5%ad%98%e5%91%bd%e4%bb%a4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188434\/","title":{"rendered":"\u63a2\u7a76\u6df1\u5165Redis\u67e5\u770b\u5167\u5b58\u547d\u4ee4\uff08redis\u67e5\u770b\u5167\u5b58\u547d\u4ee4\uff09"},"content":{"rendered":"<h1 id=\"%e6%8e%a2%e7%a9%b6%e6%b7%b1%e5%85%a5redis%e6%9f%a5%e7%9c%8b%e5%85%a7%e5%ad%98%e5%91%bd%e4%bb%a4%ef%bc%88redis%e6%9f%a5%e7%9c%8b%e5%85%a7%e5%ad%98%e5%91%bd%e4%bb%a4%ef%bc%89-XIhBgYhpFi\">\u63a2\u7a76\u6df1\u5165Redis\u67e5\u770b\u5167\u5b58\u547d\u4ee4\uff08redis\u67e5\u770b\u5167\u5b58\u547d\u4ee4\uff09<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u3002\u96a8\u8457\u61c9\u7528\u7684\u589e\u9577\uff0c\u5c0d\u65bc\u5167\u5b58\u7684\u7ba1\u7406\u548c\u76e3\u63a7\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u4e2d\u67e5\u770b\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u7684\u547d\u4ee4\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7406\u89e3\u548c\u7ba1\u7406\u5176\u5167\u5b58\u8cc7\u6e90\u3002<\/p>\n<h2 id=\"redis%e5%85%a7%e5%ad%98%e7%ae%a1%e7%90%86%e6%a6%82%e8%bf%b0-XIhBgYhpFi\">Redis\u5167\u5b58\u7ba1\u7406\u6982\u8ff0<\/h2>\n<p>Redis\u7684\u5167\u5b58\u7ba1\u7406\u4e3b\u8981\u4f9d\u8cf4\u65bc\u5176\u5167\u90e8\u6578\u64da\u7d50\u69cb\u548c\u914d\u7f6e\u9078\u9805\u3002Redis\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u7b49\u3002\u9019\u4e9b\u6578\u64da\u7d50\u69cb\u7684\u9078\u64c7\u6703\u5f71\u97ff\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u3002\u6b64\u5916\uff0cRedis\u9084\u63d0\u4f9b\u4e86\u591a\u7a2e\u914d\u7f6e\u9078\u9805\u4f86\u63a7\u5236\u5167\u5b58\u7684\u4f7f\u7528\uff0c\u4f8b\u5982\u6700\u5927\u5167\u5b58\u9650\u5236\u548c\u5167\u5b58\u6dd8\u6c70\u7b56\u7565\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8bredis%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81%e7%9a%84%e5%91%bd%e4%bb%a4-XIhBgYhpFi\">\u67e5\u770bRedis\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u7684\u547d\u4ee4<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u5e7e\u500b\u547d\u4ee4\u4f86\u67e5\u770b\u5167\u5b58\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\uff1a<\/p>\n<h3 id=\"1-info-%e5%91%bd%e4%bb%a4-XIhBgYhpFi\">1. INFO \u547d\u4ee4<\/h3>\n<p>\u4f7f\u7528 <code>INFO memory<\/code> \u547d\u4ee4\u53ef\u4ee5\u7372\u53d6Redis\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u4e00\u7cfb\u5217\u6709\u95dc\u5167\u5b58\u7684\u7d71\u8a08\u4fe1\u606f\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>used_memory<\/strong>: \u7576\u524d\u4f7f\u7528\u7684\u5167\u5b58\u91cf\uff08\u4ee5\u5b57\u7bc0\u70ba\u55ae\u4f4d\uff09\u3002<\/li>\n<li><strong>used_memory_human<\/strong>: \u4ee5\u4eba\u985e\u53ef\u8b80\u7684\u683c\u5f0f\u986f\u793a\u7684\u5167\u5b58\u4f7f\u7528\u91cf\u3002<\/li>\n<li><strong>used_memory_peak<\/strong>: Redis\u555f\u52d5\u4ee5\u4f86\u7684\u6700\u9ad8\u5167\u5b58\u4f7f\u7528\u91cf\u3002<\/li>\n<li><strong>mem_fragmentation_ratio<\/strong>: \u5167\u5b58\u788e\u7247\u6bd4\u7387\uff0c\u986f\u793a\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u3002<\/li>\n<\/ul>\n<pre><code>127.0.0.1:6379&gt; INFO memory\n# Memory\nused_memory:1048576\nused_memory_human:1.00M\nused_memory_peak:2097152\nmem_fragmentation_ratio:1.50\n<\/code><\/pre>\n<h3 id=\"2-memory-usage-%e5%91%bd%e4%bb%a4-XIhBgYhpFi\">2. MEMORY USAGE \u547d\u4ee4<\/h3>\n<p>\u5982\u679c\u60f3\u8981\u67e5\u770b\u7279\u5b9a\u9375\u7684\u5167\u5b58\u4f7f\u7528\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>MEMORY USAGE &lt;key&gt;<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u6307\u5b9a\u9375\u6240\u4f54\u7528\u7684\u5167\u5b58\u5927\u5c0f\u3002<\/p>\n<pre><code>127.0.0.1:6379&gt; SET mykey \"Hello, Redis\"\nOK\n127.0.0.1:6379&gt; MEMORY USAGE mykey\n(integer) 50\n<\/code><\/pre>\n<h3 id=\"3-memory-stats-%e5%91%bd%e4%bb%a4-XIhBgYhpFi\">3. MEMORY STATS \u547d\u4ee4<\/h3>\n<p>\u4f7f\u7528 <code>MEMORY STATS<\/code> \u547d\u4ee4\u53ef\u4ee5\u7372\u53d6\u66f4\u8a73\u7d30\u7684\u5167\u5b58\u7d71\u8a08\u4fe1\u606f\uff0c\u5305\u62ec\u5167\u5b58\u5206\u914d\u7684\u5404\u500b\u65b9\u9762\u3002\u9019\u5c0d\u65bc\u6df1\u5165\u5206\u6790\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u975e\u5e38\u6709\u5e6b\u52a9\u3002<\/p>\n<pre><code>127.0.0.1:6379&gt; MEMORY STATS\n1) \"peak.allocated\"\n2) (integer) 2097152\n3) \"total.allocated\"\n4) (integer) 1048576\n5) \"overhead.total\"\n6) (integer) 512\n<\/code><\/pre>\n<h2 id=\"%e5%85%a7%e5%ad%98%e7%ae%a1%e7%90%86%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-XIhBgYhpFi\">\u5167\u5b58\u7ba1\u7406\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u7ba1\u7406Redis\u7684\u5167\u5b58\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li><strong>\u8a2d\u7f6e\u6700\u5927\u5167\u5b58\u9650\u5236<\/strong>: \u4f7f\u7528 <code>maxmemory<\/code> \u914d\u7f6e\u9078\u9805\u4f86\u9650\u5236Redis\u7684\u5167\u5b58\u4f7f\u7528\uff0c\u907f\u514d\u56e0\u5167\u5b58\u6ea2\u51fa\u5c0e\u81f4\u7684\u670d\u52d9\u4e2d\u65b7\u3002<\/li>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u5167\u5b58\u6dd8\u6c70\u7b56\u7565<\/strong>: \u6839\u64da\u61c9\u7528\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u5167\u5b58\u6dd8\u6c70\u7b56\u7565\uff0c\u5982 <code>volatile-lru<\/code> \u6216 <code>allkeys-lru<\/code>\u3002<\/li>\n<li><strong>\u5b9a\u671f\u76e3\u63a7\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1<\/strong>: \u4f7f\u7528 <code>INFO memory<\/code> \u548c <code>MEMORY USAGE<\/code> \u7b49\u547d\u4ee4\u5b9a\u671f\u6aa2\u67e5\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ca\u6642\u8abf\u6574\u914d\u7f6e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-XIhBgYhpFi\">\u7e3d\u7d50<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u547d\u4ee4\u4f86\u5e6b\u52a9\u7528\u6236\u67e5\u770b\u548c\u7ba1\u7406\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002\u901a\u904e\u4f7f\u7528 <code>INFO<\/code>\u3001<code>MEMORY USAGE<\/code> \u548c <code>MEMORY STATS<\/code> \u7b49\u547d\u4ee4\uff0c\u7528\u6236\u53ef\u4ee5\u6df1\u5165\u4e86\u89e3\u5176\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002\u6709\u6548\u7684\u5167\u5b58\u7ba1\u7406\u4e0d\u50c5\u80fd\u63d0\u9ad8Redis\u7684\u6027\u80fd\uff0c\u9084\u80fd\u78ba\u4fdd\u61c9\u7528\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\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\u7528\u6236\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u9700\u8981\u9ad8\u6027\u80fd\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u9084\u662f\u9748\u6d3b\u7684 <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u7a76Redis\u7684\u5167\u5b58\u547d\u4ee4\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u67e5\u770b\u548c\u7ba1\u7406Redis\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u512a\u5316\u6027\u80fd\u548c\u8cc7\u6e90\u914d\u7f6e\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-188434","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188434","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=188434"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188434\/revisions"}],"predecessor-version":[{"id":188435,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188434\/revisions\/188435"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=188434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=188434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=188434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}