{"id":163493,"date":"2024-11-04T23:58:29","date_gmt":"2024-11-04T15:58:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163493\/"},"modified":"2024-11-04T23:58:30","modified_gmt":"2024-11-04T15:58:30","slug":"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e6%ba%a2%e5%87%ba%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88%e7%b7%a9%e5%ad%98%e6%ba%a2%e5%87%baredis%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163493\/","title":{"rendered":"\u89e3\u6c7aRedis\u7de9\u5b58\u6ea2\u51fa\u7684\u65b9\u6cd5\uff08\u7de9\u5b58\u6ea2\u51faredis\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e6%ba%a2%e5%87%ba%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88%e7%b7%a9%e5%ad%98%e6%ba%a2%e5%87%baredis%ef%bc%89-oEOfaLUXwV\">\u89e3\u6c7aRedis\u7de9\u5b58\u6ea2\u51fa\u7684\u65b9\u6cd5\uff08\u7de9\u5b58\u6ea2\u51faredis\uff09<\/h1>\n<p>Redis\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u5834\u666f\u3002\u7136\u800c\uff0c\u5728\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u4e2d\uff0cRedis\u53ef\u80fd\u6703\u9762\u81e8\u7de9\u5b58\u6ea2\u51fa\uff08Cache Eviction\uff09\u7684\u554f\u984c\u3002\u7576Redis\u7684\u5167\u5b58\u4f7f\u7528\u9054\u5230\u8a2d\u5b9a\u7684\u4e0a\u9650\u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u522a\u9664\u4e00\u4e9b\u820a\u7684\u6578\u64da\u4ee5\u91cb\u653e\u7a7a\u9593\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u6216\u6578\u64da\u4e1f\u5931\u3002\u56e0\u6b64\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5730\u89e3\u6c7aRedis\u7de9\u5b58\u6ea2\u51fa\u554f\u984c\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e7%b7%a9%e5%ad%98%e6%ba%a2%e5%87%ba%e7%9a%84%e5%8e%9f%e5%9b%a0-oEOfaLUXwV\">\u7de9\u5b58\u6ea2\u51fa\u7684\u539f\u56e0<\/h2>\n<p>\u7de9\u5b58\u6ea2\u51fa\u901a\u5e38\u662f\u7531\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u5f15\u8d77\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u5167\u5b58\u9650\u5236\uff1a<\/strong>Redis\u7684\u5167\u5b58\u4f7f\u7528\u91cf\u53d7\u5230\u914d\u7f6e\u6587\u4ef6\u4e2d\u8a2d\u5b9a\u7684maxmemory\u53c3\u6578\u7684\u9650\u5236\u3002<\/li>\n<li><strong>\u6578\u64da\u904e\u671f\uff1a<\/strong>\u5982\u679c\u672a\u6b63\u78ba\u8a2d\u7f6e\u6578\u64da\u7684\u904e\u671f\u6642\u9593\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u4f54\u7528\u5167\u5b58\u3002<\/li>\n<li><strong>\u9ad8\u6d41\u91cf\u8acb\u6c42\uff1a<\/strong>\u5728\u9ad8\u6d41\u91cf\u7684\u60c5\u6cc1\u4e0b\uff0c\u983b\u7e41\u7684\u5beb\u5165\u64cd\u4f5c\u53ef\u80fd\u6703\u5c0e\u81f4\u5167\u5b58\u8fc5\u901f\u88ab\u586b\u6eff\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e7%b7%a9%e5%ad%98%e6%ba%a2%e5%87%ba%e7%9a%84%e6%96%b9%e6%b3%95-oEOfaLUXwV\">\u89e3\u6c7a\u7de9\u5b58\u6ea2\u51fa\u7684\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e8%aa%bf%e6%95%b4maxmemory%e9%85%8d%e7%bd%ae-oEOfaLUXwV\">1. \u8abf\u6574maxmemory\u914d\u7f6e<\/h3>\n<p>\u9996\u5148\uff0c\u53ef\u4ee5\u901a\u904e\u8abf\u6574Redis\u7684maxmemory\u914d\u7f6e\u4f86\u589e\u52a0\u53ef\u7528\u5167\u5b58\u3002\u9019\u53ef\u4ee5\u5728Redis\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u9032\u884c\u8a2d\u7f6e\uff1a<\/p>\n<pre><code>maxmemory 2gb<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5c07Redis\u7684\u6700\u5927\u5167\u5b58\u9650\u5236\u8a2d\u7f6e\u70ba2GB\u3002\u6839\u64da\u5be6\u969b\u9700\u6c42\uff0c\u9078\u64c7\u5408\u9069\u7684\u5167\u5b58\u5927\u5c0f\u3002<\/p>\n<h3 id=\"2-%e8%a8%ad%e7%bd%ae%e5%90%88%e7%90%86%e7%9a%84%e7%b7%a9%e5%ad%98%e7%ad%96%e7%95%a5-oEOfaLUXwV\">2. \u8a2d\u7f6e\u5408\u7406\u7684\u7de9\u5b58\u7b56\u7565<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\uff0c\u6839\u64da\u61c9\u7528\u5834\u666f\u9078\u64c7\u5408\u9069\u7684\u7b56\u7565\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u7de9\u5b58\u6ea2\u51fa\u7684\u98a8\u96aa\u3002\u5e38\u898b\u7684\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>noeviction\uff1a<\/strong>\u7576\u5167\u5b58\u9054\u5230\u9650\u5236\u6642\uff0c\u62d2\u7d55\u5beb\u5165\u8acb\u6c42\u3002<\/li>\n<li><strong>allkeys-lru\uff1a<\/strong>\u6839\u64da\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff08LRU\uff09\u7b97\u6cd5\u522a\u9664\u9375\u3002<\/li>\n<li><strong>volatile-lru\uff1a<\/strong>\u50c5\u522a\u9664\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\u3002<\/li>\n<\/ul>\n<p>\u9078\u64c7\u5408\u9069\u7684\u7b56\u7565\u53ef\u4ee5\u6839\u64da\u61c9\u7528\u7684\u7279\u6027\u4f86\u6c7a\u5b9a\uff0c\u4f8b\u5982\uff0c\u5982\u679c\u6578\u64da\u7684\u904e\u671f\u6642\u9593\u4e0d\u91cd\u8981\uff0c\u53ef\u4ee5\u9078\u64c7allkeys-lru\u7b56\u7565\u3002<\/p>\n<h3 id=\"3-%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b-oEOfaLUXwV\">3. \u512a\u5316\u6578\u64da\u7d50\u69cb<\/h3>\n<p>\u4f7f\u7528\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u5167\u5b58\u7684\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u54c8\u5e0c\u8868\u4f86\u5b58\u5132\u591a\u500b\u76f8\u95dc\u7684\u9375\u503c\u5c0d\uff0c\u800c\u4e0d\u662f\u70ba\u6bcf\u500b\u9375\u5275\u5efa\u4e00\u500b\u7368\u7acb\u7684\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5167\u5b58\u7684\u958b\u92b7\u3002<\/p>\n<pre><code>HSET user:1000 name \"Alice\" age 30<\/code><\/pre>\n<h3 id=\"4-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e9%81%8e%e6%9c%9f%e6%95%b8%e6%93%9a-oEOfaLUXwV\">4. \u5b9a\u671f\u6e05\u7406\u904e\u671f\u6578\u64da<\/h3>\n<p>\u5b9a\u671f\u6aa2\u67e5\u548c\u6e05\u7406\u904e\u671f\u7684\u6578\u64da\u53ef\u4ee5\u91cb\u653e\u5167\u5b58\u3002\u53ef\u4ee5\u4f7f\u7528Redis\u7684\u904e\u671f\u9375\u529f\u80fd\uff0c\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u4e26\u5b9a\u671f\u904b\u884c\u6e05\u7406\u4efb\u52d9\u3002<\/p>\n<pre><code>EXPIRE mykey 3600<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5728\u4e00\u5c0f\u6642\u5f8c\u81ea\u52d5\u522a\u9664\u3002<\/p>\n<h3 id=\"5-%e4%bd%bf%e7%94%a8%e6%8c%81%e4%b9%85%e5%8c%96%e6%a9%9f%e5%88%b6-oEOfaLUXwV\">5. \u4f7f\u7528\u6301\u4e45\u5316\u6a5f\u5236<\/h3>\n<p>\u5982\u679c\u6578\u64da\u4e0d\u9700\u8981\u9577\u671f\u4fdd\u7559\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528Redis\u7684\u6301\u4e45\u5316\u6a5f\u5236\uff08\u5982RDB\u6216AOF\uff09\u4f86\u6e1b\u5c11\u5167\u5b58\u7684\u4f7f\u7528\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u9700\u8981\u6642\u91cd\u65b0\u52a0\u8f09\u6578\u64da\uff0c\u800c\u4e0d\u5fc5\u4e00\u76f4\u4fdd\u7559\u5728\u5167\u5b58\u4e2d\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-oEOfaLUXwV\">\u7d50\u8ad6<\/h2>\n<p>\u89e3\u6c7aRedis\u7de9\u5b58\u6ea2\u51fa\u554f\u984c\u9700\u8981\u7d9c\u5408\u8003\u616e\u591a\u7a2e\u56e0\u7d20\uff0c\u5305\u62ec\u5167\u5b58\u914d\u7f6e\u3001\u7de9\u5b58\u7b56\u7565\u3001\u6578\u64da\u7d50\u69cb\u548c\u6578\u64da\u6e05\u7406\u7b49\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u7f6e\u548c\u512a\u5316\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8Redis\u7684\u6027\u80fd\uff0c\u6e1b\u5c11\u7de9\u5b58\u6ea2\u51fa\u7684\u98a8\u96aa\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u548c\u9748\u6d3b\u7684\u8cc7\u6e90\u914d\u7f6e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u6709\u6548\u89e3\u6c7aRedis\u7de9\u5b58\u6ea2\u51fa\u7684\u65b9\u6cd5\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u7a69\u5b9a\u6027\u8207\u53ef\u9760\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-163493","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163493","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=163493"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163493\/revisions"}],"predecessor-version":[{"id":163494,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163493\/revisions\/163494"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}