{"id":125429,"date":"2024-10-25T22:33:23","date_gmt":"2024-10-25T14:33:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/125429\/"},"modified":"2024-10-25T22:33:24","modified_gmt":"2024-10-25T14:33:24","slug":"redis-%e7%a9%ba%e9%96%93%e6%bb%bf%e4%ba%86%ef%bc%8c%e5%a6%82%e4%bd%95%e5%88%aa%e9%99%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/125429\/","title":{"rendered":"Redis \u7a7a\u9593\u6eff\u4e86\uff0c\u5982\u4f55\u522a\u9664"},"content":{"rendered":"<h1 id=\"redis-%e7%a9%ba%e9%96%93%e6%bb%bf%e4%ba%86%ef%bc%8c%e5%a6%82%e4%bd%95%e5%88%aa%e9%99%a4-QzqVkzucfM\">Redis \u7a7a\u9593\u6eff\u4e86\uff0c\u5982\u4f55\u522a\u9664<\/h1>\n<p>Redis \u662f\u4e00\u7a2e\u9ad8\u6548\u80fd\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\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0cRedis \u7684\u5b58\u5132\u7a7a\u9593\u53ef\u80fd\u6703\u6eff\uff0c\u9019\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u6216\u7121\u6cd5\u518d\u5beb\u5165\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406 Redis \u7684\u5b58\u5132\u7a7a\u9593\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u522a\u9664\u6578\u64da\u7684\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%ad%98%e5%84%b2%e9%99%90%e5%88%b6-QzqVkzucfM\">Redis \u7684\u5b58\u5132\u9650\u5236<\/h2>\n<p>Redis \u7684\u5b58\u5132\u7a7a\u9593\u662f\u6709\u9650\u7684\uff0c\u9019\u53d6\u6c7a\u65bc\u4f3a\u670d\u5668\u7684\u5167\u5b58\u5927\u5c0f\u3002\u7576 Redis \u7684\u5167\u5b58\u4f7f\u7528\u9054\u5230\u8a2d\u5b9a\u7684\u9650\u5236\u6642\uff0c\u6703\u51fa\u73fe\u7a7a\u9593\u6eff\u7684\u60c5\u6cc1\u3002\u6b64\u6642\uff0cRedis \u6703\u6839\u64da\u914d\u7f6e\u7684\u9a45\u9010\u7b56\u7565\u4f86\u522a\u9664\u6578\u64da\u3002\u5e38\u898b\u7684\u9a45\u9010\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<li><strong>volatile-ttl<\/strong>\uff1a\u6839\u64da\u904e\u671f\u6642\u9593\u9a45\u9010\u9375\uff0c\u512a\u5148\u9a45\u9010\u5373\u5c07\u904e\u671f\u7684\u9375\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%88%aa%e9%99%a4-redis-%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a-QzqVkzucfM\">\u5982\u4f55\u522a\u9664 Redis \u4e2d\u7684\u6578\u64da<\/h2>\n<p>\u7576 Redis \u7a7a\u9593\u6eff\u4e86\uff0c\u60a8\u53ef\u4ee5\u9078\u64c7\u624b\u52d5\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-del-%e5%91%bd%e4%bb%a4-QzqVkzucfM\">1. \u4f7f\u7528 DEL \u547d\u4ee4<\/h3>\n<p>\u5982\u679c\u60a8\u77e5\u9053\u8981\u522a\u9664\u7684\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>DEL<\/code> \u547d\u4ee4\u4f86\u522a\u9664\u7279\u5b9a\u7684\u9375\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>DEL mykey<\/code><\/pre>\n<p>\u9019\u5c07\u522a\u9664\u540d\u70ba <code>mykey<\/code> \u7684\u9375\u53ca\u5176\u5c0d\u61c9\u7684\u503c\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-unlink-%e5%91%bd%e4%bb%a4-QzqVkzucfM\">2. \u4f7f\u7528 UNLINK \u547d\u4ee4<\/h3>\n<p>\u8207 <code>DEL<\/code> \u547d\u4ee4\u985e\u4f3c\uff0c<code>UNLINK<\/code> \u547d\u4ee4\u4e5f\u53ef\u4ee5\u522a\u9664\u9375\uff0c\u4f46\u5b83\u662f\u975e\u963b\u585e\u7684\uff0c\u9069\u5408\u522a\u9664\u5927\u578b\u9375\u3002\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UNLINK mylargekey<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-expire-%e5%91%bd%e4%bb%a4-QzqVkzucfM\">3. \u4f7f\u7528 EXPIRE \u547d\u4ee4<\/h3>\n<p>\u5982\u679c\u60a8\u5e0c\u671b\u81ea\u52d5\u522a\u9664\u67d0\u4e9b\u9375\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u4f86\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>EXPIRE mykey 60<\/code><\/pre>\n<p>\u9019\u5c07\u5728 60 \u79d2\u5f8c\u81ea\u52d5\u522a\u9664 <code>mykey<\/code>\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8-flushdb-%e5%92%8c-flushall-%e5%91%bd%e4%bb%a4-QzqVkzucfM\">4. \u4f7f\u7528 FLUSHDB \u548c FLUSHALL \u547d\u4ee4<\/h3>\n<p>\u5982\u679c\u60a8\u5e0c\u671b\u522a\u9664\u6574\u500b\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>FLUSHDB<\/code> \u547d\u4ee4\u3002\u82e5\u8981\u522a\u9664\u6240\u6709\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u9375\uff0c\u5247\u4f7f\u7528 <code>FLUSHALL<\/code> \u547d\u4ee4\uff1a<\/p>\n<pre><code>FLUSHDB<\/code><\/pre>\n<pre><code>FLUSHALL<\/code><\/pre>\n<p>\u8acb\u6ce8\u610f\uff0c\u9019\u4e9b\u547d\u4ee4\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u4f7f\u7528\u524d\u8acb\u8b39\u614e\u8003\u616e\u3002<\/p>\n<h2 id=\"%e7%9b%a3%e6%8e%a7%e5%92%8c%e5%84%aa%e5%8c%96-redis-%e7%9a%84%e5%ad%98%e5%84%b2%e7%a9%ba%e9%96%93-QzqVkzucfM\">\u76e3\u63a7\u548c\u512a\u5316 Redis \u7684\u5b58\u5132\u7a7a\u9593<\/h2>\n<p>\u70ba\u4e86\u907f\u514d Redis \u7a7a\u9593\u6eff\u7684\u60c5\u6cc1\uff0c\u5efa\u8b70\u5b9a\u671f\u76e3\u63a7 Redis \u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002\u53ef\u4ee5\u4f7f\u7528 <code>INFO memory<\/code> \u547d\u4ee4\u4f86\u67e5\u770b\u5167\u5b58\u4f7f\u7528\u72c0\u6cc1\u3002\u6b64\u5916\uff0c\u8003\u616e\u4f7f\u7528 Redis \u7684\u6301\u4e45\u5316\u529f\u80fd\uff08\u5982 RDB \u6216 AOF\uff09\u4f86\u4fdd\u8b77\u6578\u64da\uff0c\u4e26\u5b9a\u671f\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-QzqVkzucfM\">\u7e3d\u7d50<\/h2>\n<p>\u7576 Redis \u7a7a\u9593\u6eff\u4e86\u6642\uff0c\u901a\u904e\u4f7f\u7528 <code>DEL<\/code>\u3001<code>UNLINK<\/code>\u3001<code>EXPIRE<\/code>\u3001<code>FLUSHDB<\/code> \u548c <code>FLUSHALL<\/code> \u7b49\u547d\u4ee4\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\u3002\u6b64\u5916\uff0c\u5b9a\u671f\u76e3\u63a7\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u548c\u512a\u5316\u6578\u64da\u5b58\u5132\u7b56\u7565\u4e5f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u82e5\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u7a7a\u9593\u6eff\u4e86\u6642\uff0c\u5b78\u7fd2\u5982\u4f55\u522a\u9664\u904e\u671f\u9375\u6216\u4f7f\u7528 LRU \u7b56\u7565\u91cb\u653e\u7a7a\u9593\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u9ad8\u6548\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-125429","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/125429","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=125429"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/125429\/revisions"}],"predecessor-version":[{"id":125430,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/125429\/revisions\/125430"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=125429"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=125429"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=125429"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}