{"id":104685,"date":"2024-10-22T18:00:23","date_gmt":"2024-10-22T10:00:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/104685\/"},"modified":"2024-10-22T18:00:24","modified_gmt":"2024-10-22T10:00:24","slug":"redis-%e9%81%8e%e6%9c%9f%e6%8a%80%e8%a1%93%e5%af%a6%e7%8f%be%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/104685\/","title":{"rendered":"Redis \u904e\u671f\u6280\u8853\u5be6\u73fe\u591a\u7dda\u7a0b\u512a\u5316"},"content":{"rendered":"<h1 id=\"redis-%e9%81%8e%e6%9c%9f%e6%8a%80%e8%a1%93%e5%af%a6%e7%8f%be%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96-iyfBPvFKqG\">Redis \u904e\u671f\u6280\u8853\u5be6\u73fe\u591a\u7dda\u7a0b\u512a\u5316<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u6bcf\u500b\u958b\u767c\u8005\u548c\u7cfb\u7d71\u67b6\u69cb\u5e2b\u6240\u8ffd\u6c42\u7684\u76ee\u6a19\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u56e0\u5176\u5feb\u901f\u7684\u6578\u64da\u8b80\u53d6\u548c\u5beb\u5165\u80fd\u529b\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u7684\u904e\u671f\u6280\u8853\u5982\u4f55\u5be6\u73fe\u591a\u7dda\u7a0b\u512a\u5316\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-iyfBPvFKqG\">Redis \u7684\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u6a5f\u5236\uff1a\u5b9a\u6642\u904e\u671f\u548c\u60f0\u6027\u904e\u671f\u3002\u5b9a\u6642\u904e\u671f\u662f\u6307\u5728\u8a2d\u7f6e\u9375\u6642\u6307\u5b9a\u4e00\u500b\u904e\u671f\u6642\u9593\uff0c\u7576\u6642\u9593\u5230\u9054\u6642\uff0c\u8a72\u9375\u6703\u81ea\u52d5\u88ab\u522a\u9664\u3002\u60f0\u6027\u904e\u671f\u5247\u662f\u5728\u6bcf\u6b21\u8a2a\u554f\u9375\u6642\u6aa2\u67e5\u5176\u662f\u5426\u904e\u671f\uff0c\u82e5\u904e\u671f\u5247\u522a\u9664\u3002<\/p>\n<ul>\n<li><strong>\u5b9a\u6642\u904e\u671f\uff1a<\/strong>\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u3002<\/li>\n<li><strong>\u60f0\u6027\u904e\u671f\uff1a<\/strong>\u5728\u8a2a\u554f\u9375\u6642\u81ea\u52d5\u6aa2\u67e5\u5176\u662f\u5426\u904e\u671f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-iyfBPvFKqG\">\u591a\u7dda\u7a0b\u512a\u5316\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u55ae\u7dda\u7a0b\u7684 Redis \u53ef\u80fd\u6703\u6210\u70ba\u6027\u80fd\u74f6\u9838\u3002\u591a\u7dda\u7a0b\u512a\u5316\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8 Redis \u7684\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u904e\u671f\u9375\u7684\u60c5\u6cc1\u4e0b\u3002\u901a\u904e\u5c07\u904e\u671f\u9375\u7684\u6aa2\u67e5\u548c\u522a\u9664\u64cd\u4f5c\u5206\u914d\u5230\u591a\u500b\u7dda\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u6e1b\u5c11\u55ae\u500b\u7dda\u7a0b\u7684\u8ca0\u64d4\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e5%af%a6%e7%8f%be%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96%e7%9a%84%e7%ad%96%e7%95%a5-iyfBPvFKqG\">\u5be6\u73fe\u591a\u7dda\u7a0b\u512a\u5316\u7684\u7b56\u7565<\/h2>\n<p>\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5be6\u73fe Redis \u904e\u671f\u6280\u8853\u7684\u591a\u7dda\u7a0b\u512a\u5316\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-lua-%e8%85%b3%e6%9c%ac-iyfBPvFKqG\">1. \u4f7f\u7528 Lua \u8173\u672c<\/h3>\n<p>Redis \u652f\u6301 Lua \u8173\u672c\uff0c\u53ef\u4ee5\u5728\u670d\u52d9\u5668\u7aef\u57f7\u884c\u591a\u500b\u547d\u4ee4\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\u3002\u901a\u904e\u5c07\u904e\u671f\u6aa2\u67e5\u548c\u522a\u9664\u64cd\u4f5c\u653e\u5728\u540c\u4e00\u500b Lua \u8173\u672c\u4e2d\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<pre><code>\nEVAL \"if redis.call('exists', KEYS[1]) == 1 then\n    return redis.call('expire', KEYS[1], ARGV[1])\nelse\n    return 0\nend\" 1 mykey 10\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-redis-cluster-iyfBPvFKqG\">2. \u4f7f\u7528 Redis Cluster<\/h3>\n<p>Redis Cluster \u5141\u8a31\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500b\u7bc0\u9ede\u4e0a\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u591a\u500b\u7dda\u7a0b\u4e2d\u4e26\u884c\u8655\u7406\u904e\u671f\u9375\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6027\u80fd\uff0c\u9084\u589e\u5f37\u4e86\u7cfb\u7d71\u7684\u53ef\u64f4\u5c55\u6027\u3002<\/p>\n<h3 id=\"3-%e5%ae%9a%e6%9c%9f%e6%8e%83%e6%8f%8f%e9%81%8e%e6%9c%9f%e9%8d%b5-iyfBPvFKqG\">3. \u5b9a\u671f\u6383\u63cf\u904e\u671f\u9375<\/h3>\n<p>Redis \u63d0\u4f9b\u4e86 <code>SCAN<\/code> \u547d\u4ee4\uff0c\u53ef\u4ee5\u7528\u4f86\u904d\u6b77\u9375\u7a7a\u9593\u3002\u901a\u904e\u5b9a\u671f\u6383\u63cf\u904e\u671f\u9375\u4e26\u5728\u591a\u500b\u7dda\u7a0b\u4e2d\u522a\u9664\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u60f0\u6027\u904e\u671f\u5e36\u4f86\u7684\u6027\u80fd\u5f71\u97ff\u3002<\/p>\n<pre><code>\nlocal cursor = \"0\"\nrepeat\n    local result = redis.call(\"SCAN\", cursor)\n    cursor = result[1]\n    for i, key in ipairs(result[2]) do\n        if redis.call(\"TTL\", key) == -1 then\n            redis.call(\"DEL\", key)\n        end\n    end\nuntil cursor == \"0\"\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-iyfBPvFKqG\">\u7d50\u8ad6<\/h2>\n<p>Redis \u7684\u904e\u671f\u6280\u8853\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002\u901a\u904e\u4f7f\u7528 Lua \u8173\u672c\u3001Redis Cluster \u548c\u5b9a\u671f\u6383\u63cf\u904e\u671f\u9375\u7b49\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u512a\u5316\u904e\u671f\u9375\u7684\u8655\u7406\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\uff0c\u9084\u80fd\u6e1b\u5c11\u8cc7\u6e90\u7684\u6d6a\u8cbb\u3002<\/p>\n<p>\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u5982\u4f55\u5229\u7528 Redis \u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u904e\u671f\u6280\u8853\u5982\u4f55\u5be6\u73fe\u591a\u7dda\u7a0b\u512a\u5316\uff0c\u63d0\u9ad8\u6027\u80fd\u8207\u6548\u7387\uff0c\u52a9\u529b\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u8207\u61c9\u7528\u958b\u767c\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-104685","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/104685","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=104685"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/104685\/revisions"}],"predecessor-version":[{"id":104686,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/104685\/revisions\/104686"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=104685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=104685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=104685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}