{"id":159405,"date":"2024-11-03T14:14:20","date_gmt":"2024-11-03T06:14:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159405\/"},"modified":"2024-11-03T14:14:22","modified_gmt":"2024-11-03T06:14:22","slug":"%e7%b4%85%e8%89%b2%e5%ba%95%e5%ba%a7%e6%b7%b1%e5%85%a5%e6%8e%a2%e8%a8%8eredis%e6%b0%b4%e4%bd%8d%ef%bc%88redis%e6%b0%b4%e4%bd%8d%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159405\/","title":{"rendered":"\u7d05\u8272\u5e95\u5ea7\u6df1\u5165\u63a2\u8a0eRedis\u6c34\u4f4d\uff08redis\u6c34\u4f4d\uff09"},"content":{"rendered":"<h1 id=\"%e7%b4%85%e8%89%b2%e5%ba%95%e5%ba%a7%e6%b7%b1%e5%85%a5%e6%8e%a2%e8%a8%8eredis%e6%b0%b4%e4%bd%8d%ef%bc%88redis%e6%b0%b4%e4%bd%8d%ef%bc%89-anqbRYHKGP\">\u7d05\u8272\u5e95\u5ea7\u6df1\u5165\u63a2\u8a0eRedis\u6c34\u4f4d\uff08redis\u6c34\u4f4d\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u3002Redis\u7684\u6027\u80fd\u512a\u52e2\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u4f01\u696d\u7684\u9996\u9078\uff0c\u800c\u5176\u6c34\u4f4d\uff08Redis\u6c34\u4f4d\uff09\u5247\u662f\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u7684\u91cd\u8981\u6307\u6a19\u4e4b\u4e00\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e6%b0%b4%e4%bd%8d%ef%bc%9f-anqbRYHKGP\">\u4ec0\u9ebc\u662fRedis\u6c34\u4f4d\uff1f<\/h2>\n<p>Redis\u6c34\u4f4d\u662f\u6307Redis\u5167\u5b58\u4f7f\u7528\u7684\u72c0\u614b\uff0c\u901a\u5e38\u7528\u4f86\u76e3\u63a7\u548c\u7ba1\u7406Redis\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002\u7576Redis\u7684\u5167\u5b58\u4f7f\u7528\u9054\u5230\u4e00\u5b9a\u7684\u95be\u503c\u6642\uff0c\u7cfb\u7d71\u6703\u6839\u64da\u914d\u7f6e\u7684\u7b56\u7565\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\uff0c\u4ee5\u907f\u514d\u5167\u5b58\u6ea2\u51fa\u6216\u6027\u80fd\u4e0b\u964d\u3002Redis\u6c34\u4f4d\u4e3b\u8981\u5206\u70ba\u4e09\u500b\u5c64\u6b21\uff1a<\/p>\n<ul>\n<li><strong>\u4f4e\u6c34\u4f4d\uff08Low Watermark\uff09<\/strong>\uff1a\u7576\u5167\u5b58\u4f7f\u7528\u91cf\u4f4e\u65bc\u6b64\u95be\u503c\u6642\uff0cRedis\u6703\u8a8d\u70ba\u7cfb\u7d71\u904b\u884c\u6b63\u5e38\uff0c\u4e26\u4e14\u53ef\u4ee5\u63a5\u53d7\u65b0\u7684\u6578\u64da\u5beb\u5165\u3002<\/li>\n<li><strong>\u9ad8\u6c34\u4f4d\uff08High Watermark\uff09<\/strong>\uff1a\u7576\u5167\u5b58\u4f7f\u7528\u91cf\u9054\u5230\u6b64\u95be\u503c\u6642\uff0cRedis\u6703\u958b\u59cb\u9032\u884c\u5167\u5b58\u56de\u6536\uff0c\u6839\u64da\u914d\u7f6e\u7684\u9a45\u9010\u7b56\u7565\u522a\u9664\u4e00\u4e9b\u6578\u64da\u3002<\/li>\n<li><strong>\u81e8\u754c\u6c34\u4f4d\uff08Critical Watermark\uff09<\/strong>\uff1a\u7576\u5167\u5b58\u4f7f\u7528\u91cf\u9054\u5230\u6b64\u95be\u503c\u6642\uff0cRedis\u5c07\u62d2\u7d55\u65b0\u7684\u5beb\u5165\u8acb\u6c42\uff0c\u4e26\u53ef\u80fd\u6703\u5c0e\u81f4\u7cfb\u7d71\u4e0d\u7a69\u5b9a\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e6%b0%b4%e4%bd%8d%e7%9a%84%e9%85%8d%e7%bd%ae-anqbRYHKGP\">Redis\u6c34\u4f4d\u7684\u914d\u7f6e<\/h2>\n<p>Redis\u7684\u6c34\u4f4d\u914d\u7f6e\u4e3b\u8981\u901a\u904e\u914d\u7f6e\u6587\u4ef6\u9032\u884c\u8a2d\u7f6e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u914d\u7f6e\u53c3\u6578\uff1a<\/p>\n<pre><code>\nmaxmemory \nmaxmemory-policy \n<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>maxmemory<\/code>\u7528\u65bc\u8a2d\u7f6eRedis\u7684\u6700\u5927\u5167\u5b58\u4f7f\u7528\u91cf\uff0c\u800c<code>maxmemory-policy<\/code>\u5247\u7528\u65bc\u8a2d\u7f6e\u7576\u5167\u5b58\u9054\u5230\u4e0a\u9650\u6642\u7684\u9a45\u9010\u7b56\u7565\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\u9054\u5230\u4e0a\u9650\u6642\uff0c\u5beb\u5165\u8acb\u6c42\u5c07\u88ab\u62d2\u7d55\u3002<\/li>\n<li><strong>allkeys-lru<\/strong>\uff1a\u6839\u64da\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff08LRU\uff09\u7b97\u6cd5\u9a45\u9010\u4efb\u610f\u9375\u3002<\/li>\n<li><strong>volatile-lru<\/strong>\uff1a\u50c5\u9a45\u9010\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%9b%a3%e6%8e%a7redis%e6%b0%b4%e4%bd%8d-anqbRYHKGP\">\u76e3\u63a7Redis\u6c34\u4f4d<\/h2>\n<p>\u70ba\u4e86\u78ba\u4fddRedis\u7684\u7a69\u5b9a\u904b\u884c\uff0c\u76e3\u63a7\u6c34\u4f4d\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528Redis\u81ea\u5e36\u7684\u547d\u4ee4\u4f86\u67e5\u770b\u7576\u524d\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff1a<\/p>\n<pre><code>\nINFO memory\n<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u8fd4\u56de\u6709\u95dc\u5167\u5b58\u4f7f\u7528\u7684\u8a73\u7d30\u4fe1\u606f\uff0c\u5305\u62ec\u7576\u524d\u4f7f\u7528\u7684\u5167\u5b58\u91cf\u3001\u6700\u5927\u5167\u5b58\u9650\u5236\u7b49\u3002\u901a\u904e\u5b9a\u671f\u6aa2\u67e5\u9019\u4e9b\u6307\u6a19\uff0c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u4ee5\u53ca\u6642\u8abf\u6574\u914d\u7f6e\uff0c\u907f\u514d\u6f5b\u5728\u7684\u554f\u984c\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-anqbRYHKGP\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u7ba1\u7406Redis\u6c34\u4f4d\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u5b9a\u671f\u76e3\u63a7\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ca\u6642\u8abf\u6574<code>maxmemory<\/code>\u8a2d\u7f6e\u3002<\/li>\n<li>\u6839\u64da\u696d\u52d9\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u9a45\u9010\u7b56\u7565\uff0c\u4ee5\u5e73\u8861\u6027\u80fd\u548c\u6578\u64da\u6301\u4e45\u6027\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528Redis\u96c6\u7fa4\u4f86\u5206\u6563\u8ca0\u8f09\uff0c\u6e1b\u5c11\u55ae\u500b\u5be6\u4f8b\u7684\u5167\u5b58\u58d3\u529b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-anqbRYHKGP\">\u7d50\u8ad6<\/h2>\n<p>Redis\u6c34\u4f4d\u662f\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u7684\u91cd\u8981\u6307\u6a19\uff0c\u901a\u904e\u5408\u7406\u7684\u914d\u7f6e\u548c\u76e3\u63a7\uff0c\u53ef\u4ee5\u6709\u6548\u7ba1\u7406\u5167\u5b58\u4f7f\u7528\uff0c\u907f\u514d\u7cfb\u7d71\u5d29\u6f70\u6216\u6027\u80fd\u4e0b\u964d\u3002\u96a8\u8457\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u6301\u7e8c\u512a\u5316Redis\u7684\u914d\u7f6e\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u6548\u7387\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u53ca\u5176\u4ed6\u76f8\u95dc\u670d\u52d9\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a 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