{"id":183042,"date":"2024-11-10T01:27:20","date_gmt":"2024-11-09T17:27:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183042\/"},"modified":"2024-11-10T01:27:21","modified_gmt":"2024-11-09T17:27:21","slug":"%e5%af%a6%e7%8f%beredis%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%ef%bc%88redis%e9%81%8e%e6%9c%9f-%e5%a4%9a%e7%b7%9a%e7%a8%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183042\/","title":{"rendered":"\u5be6\u73feRedis\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09"},"content":{"rendered":"

\u5be6\u73feRedis\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09<\/h1>\n

Redis\u662f\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u61c9\u7528\u4e2d\u3002Redis\u7684\u904e\u671f\u7b56\u7565\u662f\u5176\u4e00\u500b\u91cd\u8981\u7279\u6027\uff0c\u5141\u8a31\u7528\u6236\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u5f9e\u800c\u81ea\u52d5\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u9019\u4e9b\u904e\u671f\u9375\u6210\u70ba\u4e86\u4e00\u500b\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u6548\u7387\u3002<\/p>\n

Redis\u7684\u904e\u671f\u6a5f\u5236<\/h2>\n

Redis\u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u6a5f\u5236\uff1a\u5b9a\u6642\u522a\u9664\u548c\u60f0\u6027\u522a\u9664\u3002\u5b9a\u6642\u522a\u9664\u662f\u6307Redis\u6703\u5b9a\u671f\u6aa2\u67e5\u6240\u6709\u7684\u9375\uff0c\u4e26\u522a\u9664\u90a3\u4e9b\u5df2\u7d93\u904e\u671f\u7684\u9375\u3002\u60f0\u6027\u522a\u9664\u5247\u662f\u5728\u7528\u6236\u8a2a\u554f\u67d0\u500b\u9375\u6642\uff0c\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u904e\u671f\uff0c\u5982\u679c\u904e\u671f\u5247\u522a\u9664\u3002\u9019\u5169\u7a2e\u6a5f\u5236\u5404\u6709\u512a\u7f3a\u9ede\uff0c\u5b9a\u6642\u522a\u9664\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u800c\u60f0\u6027\u522a\u9664\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u904e\u671f\u9375\u7684\u5b58\u5728\u6642\u9593\u904e\u9577\u3002<\/p>\n

\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565\u7684\u5fc5\u8981\u6027<\/h2>\n

\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u55ae\u7dda\u7a0b\u7684\u904e\u671f\u7b56\u7565\u53ef\u80fd\u6703\u6210\u70ba\u6027\u80fd\u74f6\u9838\u3002\u7576Redis\u9700\u8981\u8655\u7406\u5927\u91cf\u7684\u904e\u671f\u9375\u6642\uff0c\u55ae\u7dda\u7a0b\u7684\u6aa2\u67e5\u548c\u522a\u9664\u904e\u7a0b\u53ef\u80fd\u6703\u5c0e\u81f4\u5ef6\u9072\uff0c\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u904e\u671f\u9375\u7684\u8655\u7406\u6548\u7387\u3002<\/p>\n

\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565<\/h2>\n

\u8981\u5be6\u73feRedis\u7684\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n

1. \u4f7f\u7528Redis Cluster<\/h3>\n

Redis Cluster\u652f\u6301\u5206\u7247\uff0c\u53ef\u4ee5\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500b\u7bc0\u9ede\u4e0a\u3002\u9019\u6a23\uff0c\u6bcf\u500b\u7bc0\u9ede\u90fd\u53ef\u4ee5\u7368\u7acb\u8655\u7406\u81ea\u5df1\u7684\u904e\u671f\u9375\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002\u4f7f\u7528Redis Cluster\u6642\uff0c\u78ba\u4fdd\u6bcf\u500b\u7bc0\u9ede\u7684\u904e\u671f\u7b56\u7565\u914d\u7f6e\u4e00\u81f4\u3002<\/p>\n

2. \u4f7f\u7528Lua\u8173\u672c<\/h3>\n

Redis\u652f\u6301Lua\u8173\u672c\uff0c\u53ef\u4ee5\u5728\u670d\u52d9\u5668\u7aef\u57f7\u884c\u591a\u500b\u547d\u4ee4\u3002\u901a\u904e\u7de8\u5bebLua\u8173\u672c\uff0c\u53ef\u4ee5\u5be6\u73fe\u6279\u91cf\u6aa2\u67e5\u548c\u522a\u9664\u904e\u671f\u9375\u7684\u529f\u80fd\uff0c\u5f9e\u800c\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\u548c\u63d0\u9ad8\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Lua\u8173\u672c\u793a\u4f8b\uff1a<\/p>\n

\nlocal keys = redis.call('keys', '*')\nfor i=1, #keys do\n    if redis.call('ttl', keys[i]) < 0 then\n        redis.call('del', keys[i])\n    end\nend\n<\/code><\/pre>\n
3. \u4f7f\u7528\u591a\u7dda\u7a0b\u5ba2\u6236\u7aef<\/h3>\n
\u5728\u5ba2\u6236\u7aef\u5be6\u73fe\u591a\u7dda\u7a0b\u53ef\u4ee5\u540c\u6642\u767c\u9001\u591a\u500b\u8acb\u6c42\u5230Redis\u670d\u52d9\u5668\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u904e\u671f\u9375\u7684\u6aa2\u67e5\u548c\u522a\u9664\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Python\u7684\u591a\u7dda\u7a0b\u793a\u4f8b\uff1a<\/p>\n
\nimport threading\nimport redis\n\ndef delete_expired_keys(redis_client):\n    keys = redis_client.keys('*')\n    for key in keys:\n        if redis_client.ttl(key) < 0:\n            redis_client.delete(key)\n\nredis_client = redis.StrictRedis(host='localhost', port=6379, db=0)\nthreads = []\n\nfor i in range(5):  # \u5275\u5efa5\u500b\u7dda\u7a0b\n    thread = threading.Thread(target=delete_expired_keys, args=(redis_client,))\n    threads.append(thread)\n    thread.start()\n\nfor thread in threads:\n    thread.join()\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u5be6\u73feRedis\u7684\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u3002\u901a\u904e\u4f7f\u7528Redis Cluster\u3001Lua\u8173\u672c\u548c\u591a\u7dda\u7a0b\u5ba2\u6236\u7aef\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u904e\u671f\u9375\uff0c\u6e1b\u5c11\u5ef6\u9072\u4e26\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u904e\u671f\u7b56\u7565\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684Redis\u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u512a\u5316\u6578\u64da\u7ba1\u7406\u8207\u5b58\u5132\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-183042","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183042","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=183042"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183042\/revisions"}],"predecessor-version":[{"id":183043,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183042\/revisions\/183043"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}