{"id":167717,"date":"2024-11-06T04:50:24","date_gmt":"2024-11-05T20:50:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/167717\/"},"modified":"2024-11-06T04:50:25","modified_gmt":"2024-11-05T20:50:25","slug":"%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e6%9c%89%e6%95%88%e7%9a%84%e7%b7%a9%e5%ad%98%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%ef%bc%88redis%e7%9a%84%e7%b7%a9%e5%ad%98%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/167717\/","title":{"rendered":"\u5229\u7528Redis\u5be6\u73fe\u6709\u6548\u7684\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\uff08redis\u7684\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e6%9c%89%e6%95%88%e7%9a%84%e7%b7%a9%e5%ad%98%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5-UuCBUInXwZ\">\u5229\u7528Redis\u5be6\u73fe\u6709\u6548\u7684\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u7de9\u5b58\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u7cfb\u7d71\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u7684\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u7de9\u5b58\u6578\u64da\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b7%a9%e5%ad%98%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5%ef%bc%9f-UuCBUInXwZ\">\u4ec0\u9ebc\u662f\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\uff1f<\/h2>\n<p>\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\u662f\u6307\u5728\u7de9\u5b58\u7a7a\u9593\u4e0d\u8db3\u6642\uff0c\u6c7a\u5b9a\u54ea\u4e9b\u6578\u64da\u61c9\u8a72\u88ab\u522a\u9664\u4ee5\u9a30\u51fa\u7a7a\u9593\u7684\u898f\u5247\u3002\u6709\u6548\u7684\u6dd8\u6c70\u7b56\u7565\u80fd\u5920\u78ba\u4fdd\u6700\u5e38\u7528\u6216\u6700\u91cd\u8981\u7684\u6578\u64da\u80fd\u5920\u4fdd\u7559\u5728\u7de9\u5b58\u4e2d\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e7%b7%a9%e5%ad%98%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5-UuCBUInXwZ\">Redis\u7684\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u7b56\u7565\u3002\u4ee5\u4e0b\u662fRedis\u652f\u6301\u7684\u4e3b\u8981\u6dd8\u6c70\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>noeviction<\/strong>\uff1a\u7576\u5167\u5b58\u4e0d\u8db3\u6642\uff0c\u7121\u6cd5\u518d\u5beb\u5165\u65b0\u7684\u6578\u64da\uff0c\u6703\u8fd4\u56de\u932f\u8aa4\u3002\u9019\u662fRedis\u7684\u9ed8\u8a8d\u7b56\u7565\u3002<\/li>\n<li><strong>allkeys-lru<\/strong>\uff1a\u5728\u6240\u6709\u9375\u4e2d\uff0c\u4f7f\u7528\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff08LRU\uff09\u7b97\u6cd5\u6dd8\u6c70\u6700\u5c11\u4f7f\u7528\u7684\u9375\u3002<\/li>\n<li><strong>volatile-lru<\/strong>\uff1a\u50c5\u5728\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\u4e2d\uff0c\u4f7f\u7528LRU\u7b97\u6cd5\u6dd8\u6c70\u6700\u5c11\u4f7f\u7528\u7684\u9375\u3002<\/li>\n<li><strong>allkeys-random<\/strong>\uff1a\u96a8\u6a5f\u6dd8\u6c70\u4e00\u500b\u9375\uff0c\u7121\u8ad6\u5176\u662f\u5426\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u3002<\/li>\n<li><strong>volatile-random<\/strong>\uff1a\u96a8\u6a5f\u6dd8\u6c70\u4e00\u500b\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\u3002<\/li>\n<li><strong>volatile-ttl<\/strong>\uff1a\u6839\u64da\u9375\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\uff08TTL\uff09\u9032\u884c\u6dd8\u6c70\uff0c\u512a\u5148\u6dd8\u6c70TTL\u6700\u77ed\u7684\u9375\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5-UuCBUInXwZ\">\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684\u6dd8\u6c70\u7b56\u7565<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6dd8\u6c70\u7b56\u7565\u53d6\u6c7a\u65bc\u61c9\u7528\u7684\u7279\u6027\u548c\u9700\u6c42\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u8003\u616e\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u4f7f\u7528\u983b\u7387<\/strong>\uff1a\u5982\u679c\u67d0\u4e9b\u6578\u64da\u7d93\u5e38\u88ab\u8a2a\u554f\uff0c\u5247\u61c9\u9078\u64c7LRU\u7b56\u7565\uff0c\u4ee5\u78ba\u4fdd\u9019\u4e9b\u6578\u64da\u4e0d\u6703\u88ab\u6dd8\u6c70\u3002<\/li>\n<li><strong>\u6578\u64da\u904e\u671f\u6642\u9593<\/strong>\uff1a\u5982\u679c\u6578\u64da\u6709\u660e\u78ba\u7684\u904e\u671f\u6642\u9593\uff0c\u5247\u53ef\u4ee5\u8003\u616e\u4f7f\u7528volatile\u7cfb\u5217\u7684\u7b56\u7565\u3002<\/li>\n<li><strong>\u7cfb\u7d71\u6027\u80fd\u9700\u6c42<\/strong>\uff1a\u5728\u9ad8\u6027\u80fd\u8981\u6c42\u7684\u7cfb\u7d71\u4e2d\uff0c\u9078\u64c7allkeys-lru\u53ef\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u63d0\u9ad8\u7de9\u5b58\u547d\u4e2d\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e7%8f%be%e7%a4%ba%e4%be%8b-UuCBUInXwZ\">\u5be6\u73fe\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Redis\u8a2d\u7f6eLRU\u6dd8\u6c70\u7b56\u7565\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\u670d\u52d9\u5668\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u8a2d\u7f6e\u6700\u5927\u5167\u5b58\u9650\u5236\nr.config_set('maxmemory', '100mb')\n\n# \u8a2d\u7f6e\u6dd8\u6c70\u7b56\u7565\u70baallkeys-lru\nr.config_set('maxmemory-policy', 'allkeys-lru')\n\n# \u6dfb\u52a0\u6578\u64da\u5230\u7de9\u5b58\nfor i in range(1000):\n    r.set(f'key{i}', f'value{i}')\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u9023\u63a5\u5230Redis\u670d\u52d9\u5668\uff0c\u7136\u5f8c\u8a2d\u7f6e\u6700\u5927\u5167\u5b58\u9650\u5236\u548c\u6dd8\u6c70\u7b56\u7565\u3002\u63a5\u8457\uff0c\u6211\u5011\u5411\u7de9\u5b58\u4e2d\u6dfb\u52a0\u4e861000\u500b\u9375\u503c\u5c0d\u3002\u7576\u5167\u5b58\u9054\u5230\u9650\u5236\u6642\uff0cRedis\u5c07\u81ea\u52d5\u6839\u64daLRU\u7b97\u6cd5\u6dd8\u6c70\u6700\u5c11\u4f7f\u7528\u7684\u9375\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-UuCBUInXwZ\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7684\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u9078\u64c7\uff0c\u80fd\u5920\u6839\u64da\u4e0d\u540c\u7684\u61c9\u7528\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002\u901a\u904e\u5408\u7406\u9078\u64c7\u548c\u914d\u7f6e\u9019\u4e9b\u7b56\u7565\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\u4f86\u904b\u884cRedis\uff0c\u5c07\u662f\u63d0\u5347\u696d\u52d9\u6548\u7387\u7684\u660e\u667a\u4e4b\u8209\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u7684\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u7ba1\u7406\u7de9\u5b58\uff0c\u63d0\u5347\u6027\u80fd\u4e26\u512a\u5316\u8cc7\u6e90\u4f7f\u7528\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-167717","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167717","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=167717"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167717\/revisions"}],"predecessor-version":[{"id":167718,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167717\/revisions\/167718"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=167717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=167717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=167717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}