{"id":128235,"date":"2024-10-26T12:39:17","date_gmt":"2024-10-26T04:39:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128235\/"},"modified":"2024-10-26T12:39:17","modified_gmt":"2024-10-26T04:39:17","slug":"redis-%e5%af%a6%e7%8f%be-1-%e4%bb%a5%e4%b8%8b%e7%a2%8e%e7%89%87%e7%8e%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128235\/","title":{"rendered":"Redis \u5be6\u73fe 1 \u4ee5\u4e0b\u788e\u7247\u7387"},"content":{"rendered":"<h1 id=\"redis-%e5%af%a6%e7%8f%be-1-%e4%bb%a5%e4%b8%8b%e7%a2%8e%e7%89%87%e7%8e%87-eNEfWnYWZa\">Redis \u5be6\u73fe 1 \u4ee5\u4e0b\u788e\u7247\u7387<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u6bcf\u500b\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u6240\u8ffd\u6c42\u7684\u76ee\u6a19\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u56e0\u5176\u5feb\u901f\u7684\u6578\u64da\u5b58\u53d6\u80fd\u529b\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0c\u788e\u7247\u7387\u7684\u554f\u984c\u4e5f\u9010\u6f38\u6d6e\u73fe\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe 1 \u4ee5\u4e0b\u7684\u788e\u7247\u7387\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\u548c\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%a2%8e%e7%89%87%e7%8e%87%ef%bc%9f-eNEfWnYWZa\">\u4ec0\u9ebc\u662f\u788e\u7247\u7387\uff1f<\/h2>\n<p>\u788e\u7247\u7387\u662f\u6307\u5728\u5167\u5b58\u4e2d\u5be6\u969b\u4f7f\u7528\u7684\u7a7a\u9593\u8207\u5206\u914d\u7684\u7a7a\u9593\u4e4b\u9593\u7684\u6bd4\u7387\u3002\u7576\u788e\u7247\u7387\u9ad8\u6642\uff0c\u610f\u5473\u8457\u6709\u5927\u91cf\u7684\u5167\u5b58\u7a7a\u9593\u672a\u88ab\u6709\u6548\u5229\u7528\uff0c\u9019\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u548c\u8cc7\u6e90\u6d6a\u8cbb\u3002\u5728 Redis \u4e2d\uff0c\u788e\u7247\u7387\u7684\u8a08\u7b97\u516c\u5f0f\u70ba\uff1a<\/p>\n<pre><code>\u788e\u7247\u7387 = (\u5df2\u5206\u914d\u5167\u5b58 - \u4f7f\u7528\u5167\u5b58) \/ \u4f7f\u7528\u5167\u5b58<\/code><\/pre>\n<p>\u7406\u60f3\u7684\u788e\u7247\u7387\u61c9\u8a72\u4f4e\u65bc 1\uff0c\u9019\u8868\u793a\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u8f03\u9ad8\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e7%a2%8e%e7%89%87%e7%8e%87%e6%9c%83%e5%a2%9e%e5%8a%a0%ef%bc%9f-eNEfWnYWZa\">\u70ba\u4ec0\u9ebc\u788e\u7247\u7387\u6703\u589e\u52a0\uff1f<\/h2>\n<p>\u788e\u7247\u7387\u7684\u589e\u52a0\u901a\u5e38\u8207\u4ee5\u4e0b\u5e7e\u500b\u56e0\u7d20\u6709\u95dc\uff1a<\/p>\n<ul>\n<li><strong>\u983b\u7e41\u7684\u5beb\u5165\u548c\u522a\u9664\u64cd\u4f5c\uff1a<\/strong>\u7576\u6578\u64da\u7d93\u5e38\u88ab\u5beb\u5165\u548c\u522a\u9664\u6642\uff0c\u5167\u5b58\u4e2d\u7684\u7a7a\u9593\u6703\u8b8a\u5f97\u96f6\u6563\uff0c\u5c0e\u81f4\u788e\u7247\u7684\u7522\u751f\u3002<\/li>\n<li><strong>\u4e0d\u5747\u52fb\u7684\u6578\u64da\u5206\u4f48\uff1a<\/strong>\u5982\u679c\u67d0\u4e9b\u9375\u7684\u5927\u5c0f\u5dee\u7570\u5f88\u5927\uff0c\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u5167\u5b58\u7684\u975e\u5747\u52fb\u4f7f\u7528\u3002<\/li>\n<li><strong>\u6578\u64da\u7d50\u69cb\u7684\u9078\u64c7\uff1a<\/strong>\u4e0d\u540c\u7684\u6578\u64da\u7d50\u69cb\u5728\u5167\u5b58\u4e2d\u7684\u8868\u73fe\u4e0d\u540c\uff0c\u67d0\u4e9b\u7d50\u69cb\u53ef\u80fd\u6703\u5c0e\u81f4\u66f4\u9ad8\u7684\u788e\u7247\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%99%8d%e4%bd%8e-redis-%e7%9a%84%e7%a2%8e%e7%89%87%e7%8e%87-eNEfWnYWZa\">\u5982\u4f55\u964d\u4f4e Redis \u7684\u788e\u7247\u7387<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u964d\u4f4e Redis \u788e\u7247\u7387\u7684\u6709\u6548\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e9%81%a9%e7%95%b6%e7%9a%84%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b-eNEfWnYWZa\">1. \u4f7f\u7528\u9069\u7576\u7684\u6578\u64da\u7d50\u69cb<\/h3>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u53ef\u4ee5\u986f\u8457\u5f71\u97ff\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 <code>HASH<\/code> \u7d50\u69cb\u4f86\u5b58\u5132\u5c0f\u578b\u5c0d\u8c61\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u591a\u500b\u9375\u503c\u5c0d\uff0c\u53ef\u4ee5\u6e1b\u5c11\u5167\u5b58\u7684\u788e\u7247\u5316\u3002<\/p>\n<h3 id=\"2-%e5%ae%9a%e6%9c%9f%e5%9f%b7%e8%a1%8c%e5%85%a7%e5%ad%98%e5%9b%9e%e6%94%b6-eNEfWnYWZa\">2. \u5b9a\u671f\u57f7\u884c\u5167\u5b58\u56de\u6536<\/h3>\n<p>Redis \u63d0\u4f9b\u4e86 <code>MEMORY PURGE<\/code> \u547d\u4ee4\uff0c\u53ef\u4ee5\u7528\u4f86\u91cb\u653e\u672a\u4f7f\u7528\u7684\u5167\u5b58\u3002\u5b9a\u671f\u57f7\u884c\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u6e1b\u5c11\u788e\u7247\u7387\u3002<\/p>\n<pre><code>MEMORY PURGE<\/code><\/pre>\n<h3 id=\"3-%e8%aa%bf%e6%95%b4%e5%85%a7%e5%ad%98%e5%88%86%e9%85%8d%e7%ad%96%e7%95%a5-eNEfWnYWZa\">3. \u8abf\u6574\u5167\u5b58\u5206\u914d\u7b56\u7565<\/h3>\n<p>Redis \u652f\u6301\u591a\u7a2e\u5167\u5b58\u5206\u914d\u5668\uff0c\u5982 jemalloc \u548c tcmalloc\u3002\u9078\u64c7\u5408\u9069\u7684\u5167\u5b58\u5206\u914d\u5668\u53ef\u4ee5\u5e6b\u52a9\u6e1b\u5c11\u788e\u7247\u7387\u3002\u4f8b\u5982\uff0cjemalloc \u5728\u8655\u7406\u5927\u91cf\u5c0f\u5c0d\u8c61\u6642\u8868\u73fe\u826f\u597d\u3002<\/p>\n<h3>4. \u4f7f\u7528 <code>ACTIVE-DEFENSE<\/code> \u7b56\u7565<\/h3>\n<p>Redis \u7684 <code>ACTIVE-DEFENSE<\/code> \u7b56\u7565\u53ef\u4ee5\u81ea\u52d5\u6aa2\u6e2c\u548c\u4fee\u5fa9\u788e\u7247\u554f\u984c\u3002\u555f\u7528\u9019\u500b\u529f\u80fd\u53ef\u4ee5\u5e6b\u52a9\u4fdd\u6301\u4f4e\u788e\u7247\u7387\u3002<\/p>\n<pre><code>CONFIG SET active-defrag yes<\/code><\/pre>\n<h3 id=\"5-%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e6%95%b4%e9%85%8d%e7%bd%ae-eNEfWnYWZa\">5. \u76e3\u63a7\u548c\u8abf\u6574\u914d\u7f6e<\/h3>\n<p>\u4f7f\u7528 <code>INFO MEMORY<\/code> \u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u7576\u524d\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u548c\u788e\u7247\u7387\u3002\u6839\u64da\u9019\u4e9b\u6578\u64da\uff0c\u8abf\u6574 Redis \u7684\u914d\u7f6e\u53c3\u6578\uff0c\u5982 <code>maxmemory-policy<\/code>\uff0c\u4ee5\u512a\u5316\u5167\u5b58\u4f7f\u7528\u3002<\/p>\n<pre><code>INFO MEMORY<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-eNEfWnYWZa\">\u7d50\u8ad6<\/h2>\n<p>\u5728 Redis \u4e2d\u5be6\u73fe 1 \u4ee5\u4e0b\u7684\u788e\u7247\u7387\u4e26\u975e\u4e0d\u53ef\u80fd\uff0c\u901a\u904e\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u3001\u5b9a\u671f\u57f7\u884c\u5167\u5b58\u56de\u6536\u3001\u8abf\u6574\u5167\u5b58\u5206\u914d\u7b56\u7565\u3001\u4f7f\u7528 <code>ACTIVE-DEFENSE<\/code> \u7b56\u7565\u4ee5\u53ca\u6301\u7e8c\u76e3\u63a7\u548c\u8abf\u6574\u914d\u7f6e\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u788e\u7247\u7387\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002<\/p>\n<p>\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u5982\u4f55\u512a\u5316\u60a8\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe 1% \u4ee5\u4e0b\u7684\u788e\u7247\u7387\uff0c\u63d0\u5347\u6027\u80fd\u8207\u8cc7\u6e90\u5229\u7528\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u5b58\u5132\u7684\u6700\u4f73\u5316\u7ba1\u7406\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-128235","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128235","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=128235"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128235\/revisions"}],"predecessor-version":[{"id":128236,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128235\/revisions\/128236"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}