{"id":181468,"date":"2024-11-09T17:18:21","date_gmt":"2024-11-09T09:18:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/181468\/"},"modified":"2024-11-09T17:18:22","modified_gmt":"2024-11-09T09:18:22","slug":"%e6%b7%b1%e5%85%a5%e6%b7%ba%e5%87%baredis%e7%b7%a9%e5%ad%98%e6%8a%80%e8%a1%93%e9%9d%a2%e8%a9%a6%e5%95%8f%e9%a1%8c%e5%8c%af%e7%b8%bd%ef%bc%88%e5%be%8c%e7%ab%afredis%e7%b7%a9%e5%ad%98%e9%9d%a2%e8%a9%a6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/181468\/","title":{"rendered":"\u6df1\u5165\u6dfa\u51faRedis\u7de9\u5b58\u6280\u8853\u9762\u8a66\u554f\u984c\u532f\u7e3d\uff08\u5f8c\u7aefredis\u7de9\u5b58\u9762\u8a66\u984c\uff09"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e6%b7%ba%e5%87%baredis%e7%b7%a9%e5%ad%98%e6%8a%80%e8%a1%93%e9%9d%a2%e8%a9%a6%e5%95%8f%e9%a1%8c%e5%8c%af%e7%b8%bd%ef%bc%88%e5%be%8c%e7%ab%afredis%e7%b7%a9%e5%ad%98%e9%9d%a2%e8%a9%a6-oMECaJpdxS\">\u6df1\u5165\u6dfa\u51faRedis\u7de9\u5b58\u6280\u8853\u9762\u8a66\u554f\u984c\u532f\u7e3d\uff08\u5f8c\u7aefredis\u7de9\u5b58\u9762\u8a66\u984c\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5f8c\u7aef\u958b\u767c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u6280\u8853\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u4f01\u696d\u7684\u9996\u9078\u3002\u7121\u8ad6\u662f\u63d0\u5347\u61c9\u7528\u6027\u80fd\u9084\u662f\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0cRedis\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u4e00\u4e9b\u5e38\u898b\u7684Redis\u7de9\u5b58\u9762\u8a66\u554f\u984c\uff0c\u5e6b\u52a9\u6c42\u8077\u8005\u66f4\u597d\u5730\u6e96\u5099\u9762\u8a66\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%ef%bc%9f-oMECaJpdxS\">\u4ec0\u9ebc\u662fRedis\uff1f<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u5b83\u901a\u5e38\u7528\u4f5c\u7de9\u5b58\u7cfb\u7d71\uff0c\u4ee5\u63d0\u9ad8\u6578\u64da\u8b80\u53d6\u901f\u5ea6\uff0c\u4e26\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e4%b8%bb%e8%a6%81%e7%89%b9%e6%80%a7-oMECaJpdxS\">Redis\u7684\u4e3b\u8981\u7279\u6027<\/h2>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis\u80fd\u5920\u4ee5\u6bcf\u79d2\u6578\u5341\u842c\u6b21\u7684\u901f\u5ea6\u8655\u7406\u8acb\u6c42\uff0c\u9019\u4f7f\u5f97\u5b83\u975e\u5e38\u9069\u5408\u7528\u65bc\u9ad8\u4e26\u767c\u7684\u61c9\u7528\u5834\u666f\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\uff1a<\/strong>Redis\u652f\u6301\u5c07\u6578\u64da\u6301\u4e45\u5316\u5230\u78c1\u789f\uff0c\u9019\u6a23\u5373\u4f7f\u5728\u91cd\u555f\u5f8c\u4e5f\u80fd\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<li><strong>\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>\u9664\u4e86\u57fa\u672c\u7684\u9375\u503c\u5c0d\uff0cRedis\u9084\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u8655\u7406\u8907\u96dc\u6578\u64da\u6642\u66f4\u52a0\u9748\u6d3b\u3002<\/li>\n<li><strong>\u5206\u4f48\u5f0f\uff1a<\/strong>Redis\u652f\u6301\u4e3b\u5f9e\u8907\u88fd\u548c\u5206\u7247\uff0c\u80fd\u5920\u8f15\u9b06\u64f4\u5c55\u4ee5\u61c9\u5c0d\u66f4\u5927\u7684\u6578\u64da\u91cf\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84redis%e9%9d%a2%e8%a9%a6%e5%95%8f%e9%a1%8c-oMECaJpdxS\">\u5e38\u898b\u7684Redis\u9762\u8a66\u554f\u984c<\/h2>\n<h3 id=\"1-redis%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f-oMECaJpdxS\">1. Redis\u7684\u6578\u64da\u985e\u578b\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>Redis\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u7b26\u4e32\uff1a<\/strong>\u6700\u57fa\u672c\u7684\u6578\u64da\u985e\u578b\uff0c\u53ef\u4ee5\u5b58\u5132\u4efb\u4f55\u985e\u578b\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u54c8\u5e0c\uff1a<\/strong>\u7528\u65bc\u5b58\u5132\u5c0d\u8c61\uff0c\u9375\u662f\u5b57\u7b26\u4e32\uff0c\u503c\u662f\u54c8\u5e0c\u8868\u3002<\/li>\n<li><strong>\u5217\u8868\uff1a<\/strong>\u6709\u5e8f\u7684\u5b57\u7b26\u4e32\u96c6\u5408\uff0c\u53ef\u4ee5\u7528\u65bc\u5be6\u73fe\u6d88\u606f\u968a\u5217\u3002<\/li>\n<li><strong>\u96c6\u5408\uff1a<\/strong>\u7121\u5e8f\u7684\u5b57\u7b26\u4e32\u96c6\u5408\uff0c\u652f\u6301\u96c6\u5408\u904b\u7b97\u3002<\/li>\n<li><strong>\u6709\u5e8f\u96c6\u5408\uff1a<\/strong>\u6bcf\u500b\u5143\u7d20\u90fd\u6709\u4e00\u500b\u5206\u6578\uff0c\u6839\u64da\u5206\u6578\u9032\u884c\u6392\u5e8f\u3002<\/li>\n<\/ul>\n<h3 id=\"2-redis%e7%9a%84%e6%8c%81%e4%b9%85%e5%8c%96%e6%96%b9%e5%bc%8f%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f-oMECaJpdxS\">2. Redis\u7684\u6301\u4e45\u5316\u65b9\u5f0f\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>Redis\u63d0\u4f9b\u5169\u7a2e\u4e3b\u8981\u7684\u6301\u4e45\u5316\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li><strong>RDB\uff08\u5feb\u7167\uff09\uff1a<\/strong>\u5b9a\u671f\u5c07\u6578\u64da\u5feb\u7167\u4fdd\u5b58\u5230\u78c1\u789f\u4e2d\u3002<\/li>\n<li><strong>AOF\uff08\u8ffd\u52a0\u6587\u4ef6\uff09\uff1a<\/strong>\u5c07\u6bcf\u6b21\u5beb\u64cd\u4f5c\u8ffd\u52a0\u5230\u4e00\u500b\u6587\u4ef6\u4e2d\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u91cd\u555f\u6642\u91cd\u653e\u9019\u4e9b\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h3 id=\"3-redis%e7%9a%84%e7%b7%a9%e5%ad%98%e5%a4%b1%e6%95%88%e7%ad%96%e7%95%a5%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f-oMECaJpdxS\">3. Redis\u7684\u7de9\u5b58\u5931\u6548\u7b56\u7565\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>Redis\u652f\u6301\u591a\u7a2e\u7de9\u5b58\u5931\u6548\u7b56\u7565\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>LRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\uff1a<\/strong>\u7576\u5167\u5b58\u9054\u5230\u4e0a\u9650\u6642\uff0c\u522a\u9664\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u9375\u3002<\/li>\n<li><strong>LFU\uff08\u6700\u4e0d\u5e38\u4f7f\u7528\uff09\uff1a<\/strong>\u522a\u9664\u4f7f\u7528\u983b\u7387\u6700\u4f4e\u7684\u9375\u3002<\/li>\n<li><strong>TTL\uff08\u751f\u5b58\u6642\u9593\uff09\uff1a<\/strong>\u70ba\u6bcf\u500b\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u904e\u671f\u5f8c\u81ea\u52d5\u522a\u9664\u3002<\/li>\n<\/ul>\n<h3 id=\"4-%e5%a6%82%e4%bd%95%e5%9c%a8redis%e4%b8%ad%e5%af%a6%e7%8f%be%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96%ef%bc%9f-oMECaJpdxS\">4. \u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\uff1f<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528SETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u3002\u7576\u4e00\u500b\u9032\u7a0b\u7372\u53d6\u9396\u6642\uff0c\u4f7f\u7528SETNX\u8a2d\u7f6e\u4e00\u500b\u9375\uff0c\u5982\u679c\u6210\u529f\u5247\u7372\u53d6\u9396\uff0c\u5426\u5247\u8868\u793a\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u6301\u6709\u3002\u793a\u4f8b\u4ee3\u78bc\u5982\u4e0b\uff1a<\/p>\n<pre><code>if redis.call(\"setnx\", KEYS[1], ARGV[1]) == 1 then\n    return true\nelse\n    return false\nend<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-oMECaJpdxS\">\u7e3d\u7d50<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u6280\u8853\uff0c\u5df2\u7d93\u5728\u8a31\u591a\u5f8c\u7aef\u7cfb\u7d71\u4e2d\u5f97\u5230\u4e86\u5ee3\u6cdb\u61c9\u7528\u3002\u4e86\u89e3Redis\u7684\u57fa\u672c\u6982\u5ff5\u3001\u6578\u64da\u985e\u578b\u3001\u6301\u4e45\u5316\u65b9\u5f0f\u53ca\u7de9\u5b58\u7b56\u7565\uff0c\u5c0d\u65bc\u5f8c\u7aef\u958b\u767c\u8005\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002\u5728\u9762\u8a66\u4e2d\uff0c\u638c\u63e1\u9019\u4e9b\u77e5\u8b58\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u81ea\u5df1\u7684\u7af6\u722d\u529b\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6027\u80fd\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u6dfa\u51faRedis\u7de9\u5b58\u6280\u8853\u9762\u8a66\u554f\u984c\u532f\u7e3d\uff0c\u6db5\u84cb\u5f8c\u7aefRedis\u7de9\u5b58\u9762\u8a66\u984c\uff0c\u52a9\u4f60\u8f15\u9b06\u61c9\u5c0d\u9762\u8a66\u6311\u6230\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-181468","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/181468","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=181468"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/181468\/revisions"}],"predecessor-version":[{"id":181469,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/181468\/revisions\/181469"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=181468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=181468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=181468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}