{"id":194897,"date":"2024-11-13T10:29:18","date_gmt":"2024-11-13T02:29:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194897\/"},"modified":"2024-11-13T10:29:19","modified_gmt":"2024-11-13T02:29:19","slug":"%e7%94%a8redis%e9%81%a0%e7%a8%8b%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e7%9a%84%e6%8a%80%e5%b7%a7%ef%bc%88redis%e9%81%a0%e7%a8%8b%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194897\/","title":{"rendered":"\u7528Redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u6280\u5de7\uff08redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\uff09"},"content":{"rendered":"

\u7528Redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u6280\u5de7<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\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\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u9032\u884c\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u6280\u5de7\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n

Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

Redis\u662f\u4e00\u7a2e\u958b\u6e90\u7684\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\u7b49\u3002\u7531\u65bc\u5176\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\uff0cRedis\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u5206\u6790\u7b49\u5834\u666f\u3002<\/p>\n

\u70ba\u4ec0\u9ebc\u9700\u8981\u6279\u91cf\u522a\u9664\u6578\u64da<\/h2>\n

\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u522a\u9664\u5927\u91cf\u6578\u64da\uff0c\u4f8b\u5982\u6e05\u7406\u904e\u671f\u7684\u7de9\u5b58\u3001\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u7528\u6236\u6578\u64da\u6216\u91cd\u7f6e\u6e2c\u8a66\u74b0\u5883\u3002\u6279\u91cf\u522a\u9664\u6578\u64da\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6548\u7387\uff0c\u6e1b\u5c11\u64cd\u4f5c\u6642\u9593\uff0c\u4e26\u964d\u4f4e\u5c0d\u7cfb\u7d71\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/p>\n

\u4f7f\u7528Redis\u9032\u884c\u6279\u91cf\u522a\u9664\u7684\u6280\u5de7<\/h2>\n

1. \u4f7f\u7528SCAN\u547d\u4ee4<\/h3>\n

\u5728Redis\u4e2d\uff0c\u4f7f\u7528SCAN<\/code>\u547d\u4ee4\u53ef\u4ee5\u904d\u6b77\u6578\u64da\u5eab\u4e2d\u7684\u9375\u3002\u9019\u662f\u4e00\u7a2e\u975e\u963b\u585e\u7684\u65b9\u5f0f\uff0c\u9069\u5408\u7528\u65bc\u5927\u6578\u64da\u96c6\u7684\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528SCAN<\/code>\u547d\u4ee4\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n

 \n# \u5047\u8a2d\u6211\u5011\u8981\u522a\u9664\u6240\u6709\u4ee5\"user:\"\u958b\u982d\u7684\u9375\ncursor = 0\nrepeat\n    cursor, keys = redis.scan(cursor, match=\"user:*\")\n    for key in keys\n        redis.del(key)\n    end\nuntil cursor == 0\n<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c07\u904d\u6b77\u6240\u6709\u4ee5”user:”\u958b\u982d\u7684\u9375\uff0c\u4e26\u5c07\u5176\u522a\u9664\u3002\u4f7f\u7528SCAN<\/code>\u547d\u4ee4\u7684\u597d\u8655\u5728\u65bc\u5b83\u4e0d\u6703\u963b\u585eRedis\u670d\u52d9\u5668\uff0c\u9069\u5408\u5728\u751f\u7522\u74b0\u5883\u4e2d\u4f7f\u7528\u3002<\/p>\n
2. \u4f7f\u7528\u7ba1\u9053\u6280\u8853<\/h3>\n
\u5728\u9032\u884c\u5927\u91cf\u522a\u9664\u64cd\u4f5c\u6642\uff0c\u4f7f\u7528\u7ba1\u9053\u6280\u8853\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002\u7ba1\u9053\u6280\u8853\u5141\u8a31\u5ba2\u6236\u7aef\u5728\u4e00\u6b21\u8acb\u6c42\u4e2d\u767c\u9001\u591a\u500b\u547d\u4ee4\uff0c\u5f9e\u800c\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u7ba1\u9053\u6280\u8853\u7684\u793a\u4f8b\uff1a<\/p>\n
\n# \u4f7f\u7528\u7ba1\u9053\u6279\u91cf\u522a\u9664\npipe = redis.pipeline()\ncursor = 0\nrepeat\n    cursor, keys = redis.scan(cursor, match=\"user:*\")\n    for key in keys\n        pipe.delete(key)\n    end\nuntil cursor == 0\npipe.execute()\n<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c07\u6240\u6709\u4ee5”user:”\u958b\u982d\u7684\u9375\u6279\u91cf\u522a\u9664\uff0c\u4e26\u901a\u904e\u7ba1\u9053\u4e00\u6b21\u6027\u57f7\u884c\u6240\u6709\u522a\u9664\u64cd\u4f5c\uff0c\u5f9e\u800c\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n
3. \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\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5ba2\u6236\u7aef\u548c\u670d\u52d9\u5668\u4e4b\u9593\u7684\u901a\u4fe1\u6b21\u6578\uff0c\u63d0\u9ad8\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Lua\u8173\u672c\u6279\u91cf\u522a\u9664\u7684\u793a\u4f8b\uff1a<\/p>\n
\nlocal keys = redis.call('keys', ARGV[1])\nfor i=1,#keys,5000 do\n    redis.call('del', unpack(keys, i, math.min(i+4999, #keys)))\nend\n<\/code><\/pre>\n
\u9019\u6bb5Lua\u8173\u672c\u5c07\u522a\u9664\u6240\u6709\u5339\u914d\u6307\u5b9a\u6a21\u5f0f\u7684\u9375\uff0c\u4e26\u4e14\u6bcf\u6b21\u6700\u591a\u522a\u96645000\u500b\u9375\uff0c\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u522a\u9664\u904e\u591a\u6578\u64da\u5c0e\u81f4\u7684\u6027\u80fd\u554f\u984c\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u4f7f\u7528Redis\u9032\u884c\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u9ad8\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002\u901a\u904e\u4f7f\u7528SCAN<\/code>\u547d\u4ee4\u3001\u7ba1\u9053\u6280\u8853\u548cLua\u8173\u672c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u4e0d\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\u7684\u60c5\u6cc1\u4e0b\uff0c\u5feb\u901f\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684VPS<\/code>\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u9999\u6e2fVPS<\/a><\/code>\u548c\u4e91\u670d\u52a1\u5668<\/a><\/code>\u7684\u4fe1\u606f\uff0c\u53ef\u4ee5\u5e6b\u52a9\u60a8\u9078\u64c7\u6700\u9069\u5408\u7684\u670d\u52d9\u5668\u914d\u7f6e\uff0c\u4ee5\u652f\u6301\u60a8\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u7528Redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u7c21\u5316\u64cd\u4f5c\u6d41\u7a0b\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u512a\u5316\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-194897","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194897","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=194897"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194897\/revisions"}],"predecessor-version":[{"id":194898,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194897\/revisions\/194898"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}