{"id":128215,"date":"2024-10-26T12:30:19","date_gmt":"2024-10-26T04:30:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128215\/"},"modified":"2024-10-26T12:30:19","modified_gmt":"2024-10-26T04:30:19","slug":"redis-%e5%af%a6%e6%99%82%e6%9f%a5%e7%9c%8b%e5%85%a7%e5%ad%98%e5%8d%a0%e7%94%a8%e5%88%86%e5%b8%83","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128215\/","title":{"rendered":"Redis \u5be6\u6642\u67e5\u770b\u5167\u5b58\u5360\u7528\u5206\u5e03"},"content":{"rendered":"<h1 id=\"redis-%e5%af%a6%e6%99%82%e6%9f%a5%e7%9c%8b%e5%85%a7%e5%ad%98%e5%8d%a0%e7%94%a8%e5%88%86%e5%b8%83-OSFZmidDEa\">Redis \u5be6\u6642\u67e5\u770b\u5167\u5b58\u5360\u7528\u5206\u5e03<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u5834\u666f\u3002\u4e86\u89e3 Redis \u7684\u5167\u5b58\u5360\u7528\u5206\u5e03\u5c0d\u65bc\u512a\u5316\u6027\u80fd\u548c\u8cc7\u6e90\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5be6\u6642\u67e5\u770b Redis \u7684\u5167\u5b58\u5360\u7528\u5206\u5e03\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u5de5\u5177\u548c\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%85%a7%e5%ad%98%e7%ae%a1%e7%90%86%e6%a9%9f%e5%88%b6-OSFZmidDEa\">Redis \u7684\u5167\u5b58\u7ba1\u7406\u6a5f\u5236<\/h2>\n<p>Redis \u4f7f\u7528\u4e00\u7a2e\u7a31\u70ba\u300c\u5167\u5b58\u5206\u914d\u5668\u300d\u7684\u6a5f\u5236\u4f86\u7ba1\u7406\u5167\u5b58\u3002\u5b83\u7684\u5167\u5b58\u5206\u914d\u7b56\u7565\u4e3b\u8981\u57fa\u65bc jemalloc \u6216 tcmalloc\uff0c\u9019\u4e9b\u5206\u914d\u5668\u80fd\u5920\u6709\u6548\u5730\u8655\u7406\u5167\u5b58\u788e\u7247\u554f\u984c\u3002Redis \u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u547d\u4ee4\u4f86\u67e5\u770b\uff0c\u6700\u5e38\u7528\u7684\u547d\u4ee4\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>INFO memory<\/code>\uff1a\u63d0\u4f9b\u6709\u95dc\u5167\u5b58\u4f7f\u7528\u7684\u8a73\u7d30\u4fe1\u606f\u3002<\/li>\n<li><code>MEMORY USAGE key<\/code>\uff1a\u67e5\u770b\u7279\u5b9a\u9375\u7684\u5167\u5b58\u5360\u7528\u3002<\/li>\n<li><code>MEMORY STATS<\/code>\uff1a\u986f\u793a\u5167\u5b58\u5206\u914d\u5668\u7684\u7d71\u8a08\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8-info-%e5%91%bd%e4%bb%a4%e6%9f%a5%e7%9c%8b%e5%85%a7%e5%ad%98%e5%8d%a0%e7%94%a8-OSFZmidDEa\">\u4f7f\u7528 INFO \u547d\u4ee4\u67e5\u770b\u5167\u5b58\u5360\u7528<\/h2>\n<p>\u4f7f\u7528 <code>INFO memory<\/code> \u547d\u4ee4\u53ef\u4ee5\u7372\u53d6 Redis \u670d\u52d9\u5668\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002\u9019\u500b\u547d\u4ee4\u8fd4\u56de\u7684\u6578\u64da\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>used_memory<\/strong>\uff1aRedis \u7576\u524d\u4f7f\u7528\u7684\u5167\u5b58\u7e3d\u91cf\u3002<\/li>\n<li><strong>used_memory_human<\/strong>\uff1a\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>\uff1aRedis \u904b\u884c\u904e\u7a0b\u4e2d\u4f7f\u7528\u7684\u6700\u5927\u5167\u5b58\u91cf\u3002<\/li>\n<li><strong>mem_fragmentation_ratio<\/strong>\uff1a\u5167\u5b58\u788e\u7247\u6bd4\u7387\uff0c\u986f\u793a\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>127.0.0.1:6379&gt; INFO memory<\/code><\/pre>\n<p>\u5c07\u8fd4\u56de\u985e\u4f3c\u4ee5\u4e0b\u7684\u7d50\u679c\uff1a<\/p>\n<pre><code># Memory\nused_memory:104857600\nused_memory_human:100.00M\nused_memory_peak:209715200\nmem_fragmentation_ratio:1.50\n<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8-memory-%e5%91%bd%e4%bb%a4%e6%9f%a5%e7%9c%8b%e7%89%b9%e5%ae%9a%e9%8d%b5%e7%9a%84%e5%85%a7%e5%ad%98%e5%8d%a0%e7%94%a8-OSFZmidDEa\">\u4f7f\u7528 MEMORY \u547d\u4ee4\u67e5\u770b\u7279\u5b9a\u9375\u7684\u5167\u5b58\u5360\u7528<\/h2>\n<p>\u5982\u679c\u60f3\u8981\u67e5\u770b\u7279\u5b9a\u9375\u7684\u5167\u5b58\u5360\u7528\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>MEMORY USAGE key<\/code> \u547d\u4ee4\u3002\u9019\u5c0d\u65bc\u512a\u5316\u7279\u5b9a\u6578\u64da\u7d50\u69cb\u7684\u5167\u5b58\u4f7f\u7528\u975e\u5e38\u6709\u5e6b\u52a9\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>127.0.0.1:6379&gt; SET mykey \"Hello, Redis!\"\n127.0.0.1:6379&gt; MEMORY USAGE mykey<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de <code>mykey<\/code> \u9375\u7684\u5167\u5b58\u5360\u7528\u91cf\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u4e86\u89e3\u54ea\u4e9b\u9375\u4f54\u7528\u4e86\u904e\u591a\u7684\u5167\u5b58\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-memory-stats-%e5%91%bd%e4%bb%a4%e7%8d%b2%e5%8f%96%e5%85%a7%e5%ad%98%e7%b5%b1%e8%a8%88%e4%bf%a1%e6%81%af-OSFZmidDEa\">\u4f7f\u7528 MEMORY STATS \u547d\u4ee4\u7372\u53d6\u5167\u5b58\u7d71\u8a08\u4fe1\u606f<\/h2>\n<p>\u9664\u4e86\u67e5\u770b\u55ae\u500b\u9375\u7684\u5167\u5b58\u5360\u7528\u5916\uff0c<code>MEMORY STATS<\/code> \u547d\u4ee4\u53ef\u4ee5\u63d0\u4f9b\u66f4\u5168\u9762\u7684\u5167\u5b58\u5206\u914d\u7d71\u8a08\u4fe1\u606f\u3002\u9019\u4e9b\u4fe1\u606f\u5305\u62ec\u5167\u5b58\u5206\u914d\u5668\u7684\u5167\u90e8\u72c0\u614b\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u9032\u4e00\u6b65\u5206\u6790\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002<\/p>\n<pre><code>127.0.0.1:6379&gt; MEMORY STATS<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u4e00\u7d44\u7d71\u8a08\u6578\u64da\uff0c\u986f\u793a Redis \u5167\u90e8\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u5c0d\u65bc\u6027\u80fd\u8abf\u512a\u975e\u5e38\u6709\u5e6b\u52a9\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-OSFZmidDEa\">\u7d50\u8ad6<\/h2>\n<p>\u4e86\u89e3 Redis \u7684\u5167\u5b58\u5360\u7528\u5206\u5e03\u5c0d\u65bc\u512a\u5316\u61c9\u7528\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528 <code>INFO<\/code>\u3001<code>MEMORY USAGE<\/code> \u548c <code>MEMORY STATS<\/code> \u7b49\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5be6\u6642\u76e3\u63a7\u548c\u5206\u6790\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u5f9e\u800c\u505a\u51fa\u76f8\u61c9\u7684\u8abf\u6574\u548c\u512a\u5316\u3002\u9019\u4e0d\u50c5\u80fd\u63d0\u9ad8\u61c9\u7528\u7684\u6027\u80fd\uff0c\u9084\u80fd\u6709\u6548\u964d\u4f4e\u8cc7\u6e90\u6d6a\u8cbb\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u4e0a\u90e8\u7f72\u548c\u512a\u5316 Redis\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5be6\u6642\u67e5\u770bRedis\u5167\u5b58\u5360\u7528\u5206\u5e03\uff0c\u5e6b\u52a9\u512a\u5316\u6027\u80fd\uff0c\u63d0\u5347\u6578\u64da\u5b58\u53d6\u6548\u7387\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\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-128215","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128215","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=128215"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128215\/revisions"}],"predecessor-version":[{"id":128216,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128215\/revisions\/128216"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}