{"id":103817,"date":"2024-10-22T16:09:25","date_gmt":"2024-10-22T08:09:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/103817\/"},"modified":"2024-10-22T16:09:25","modified_gmt":"2024-10-22T08:09:25","slug":"redis-%e9%81%8e%e6%9c%9f%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96%e7%9a%84-key-%e8%87%aa%e5%8b%95%e5%9b%9e%e6%94%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/103817\/","title":{"rendered":"Redis \u904e\u671f\u591a\u7dda\u7a0b\u512a\u5316\u7684 Key \u81ea\u52d5\u56de\u6536"},"content":{"rendered":"

Redis \u904e\u671f\u591a\u7dda\u7a0b\u512a\u5316\u7684 Key \u81ea\u52d5\u56de\u6536<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u5176\u652f\u6301\u7684\u904e\u671f\u9375\u529f\u80fd\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u6709\u6548\u7ba1\u7406\u5167\u5b58\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8cc7\u6e90\u6d6a\u8cbb\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u64f4\u5c55\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u8655\u7406\u904e\u671f\u9375\u7684\u81ea\u52d5\u56de\u6536\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u7684\u904e\u671f\u591a\u7dda\u7a0b\u512a\u5316\u53ca\u5176\u5728 Key \u81ea\u52d5\u56de\u6536\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n

Redis \u7684\u904e\u671f\u9375\u6a5f\u5236<\/h2>\n

Redis \u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u9375\u7ba1\u7406\u6a5f\u5236\uff1a\u5b9a\u671f\u6aa2\u67e5\u548c\u60f0\u6027\u522a\u9664\u3002\u5b9a\u671f\u6aa2\u67e5\u662f\u6307 Redis \u6703\u5728\u56fa\u5b9a\u7684\u6642\u9593\u9593\u9694\u5167\u96a8\u6a5f\u6aa2\u67e5\u4e00\u90e8\u5206\u9375\uff0c\u522a\u9664\u904e\u671f\u7684\u9375\uff1b\u800c\u60f0\u6027\u522a\u9664\u5247\u662f\u5728\u8a2a\u554f\u67d0\u500b\u9375\u6642\uff0c\u6aa2\u67e5\u5176\u662f\u5426\u904e\u671f\uff0c\u82e5\u904e\u671f\u5247\u522a\u9664\u3002<\/p>\n

\u9019\u5169\u7a2e\u6a5f\u5236\u5404\u6709\u512a\u7f3a\u9ede\u3002\u5b9a\u671f\u6aa2\u67e5\u80fd\u5920\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u4fdd\u8b49\u5167\u5b58\u7684\u91cb\u653e\uff0c\u4f46\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\u3002\u800c\u60f0\u6027\u522a\u9664\u5247\u53ef\u80fd\u5c0e\u81f4\u904e\u671f\u9375\u5728\u4e00\u6bb5\u6642\u9593\u5167\u4ecd\u7136\u4f54\u7528\u5167\u5b58\uff0c\u5f71\u97ff\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n

\u591a\u7dda\u7a0b\u512a\u5316\u7684\u5fc5\u8981\u6027<\/h2>\n

\u96a8\u8457 Redis \u7684\u4f7f\u7528\u5834\u666f\u8d8a\u4f86\u8d8a\u591a\uff0c\u55ae\u7dda\u7a0b\u7684\u8a2d\u8a08\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\u53ef\u80fd\u6703\u6210\u70ba\u6027\u80fd\u74f6\u9838\u3002\u591a\u7dda\u7a0b\u512a\u5316\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u904e\u671f\u9375\u7684\u56de\u6536\u6548\u7387\uff0c\u6e1b\u5c11\u56e0\u70ba\u55ae\u7dda\u7a0b\u8655\u7406\u800c\u5c0e\u81f4\u7684\u5ef6\u9072\u3002<\/p>\n

\u5728 Redis \u7684\u591a\u7dda\u7a0b\u512a\u5316\u4e2d\uff0c\u4e3b\u8981\u7684\u601d\u8def\u662f\u5c07\u904e\u671f\u9375\u7684\u6aa2\u67e5\u548c\u522a\u9664\u64cd\u4f5c\u5206\u914d\u5230\u591a\u500b\u7dda\u7a0b\u4e2d\u9032\u884c\u3002\u9019\u6a23\u53ef\u4ee5\u5145\u5206\u5229\u7528\u591a\u6838 CPU \u7684\u8a08\u7b97\u80fd\u529b\uff0c\u63d0\u9ad8\u6574\u9ad4\u7684\u8655\u7406\u6548\u7387\u3002<\/p>\n

Redis \u7684\u591a\u7dda\u7a0b\u904e\u671f\u9375\u56de\u6536\u5be6\u73fe<\/h2>\n

Redis 6.0 \u7248\u672c\u5f15\u5165\u4e86\u591a\u7dda\u7a0b\u7684\u652f\u6301\uff0c\u9019\u4f7f\u5f97\u904e\u671f\u9375\u7684\u56de\u6536\u53ef\u4ee5\u5728\u591a\u500b\u7dda\u7a0b\u4e2d\u9032\u884c\u3002\u4ee5\u4e0b\u662f\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u9375\u56de\u6536\u7684\u4e00\u500b\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n

\n#include <pthread.h>\n#include <stdio.h>\n#include <stdlib.h>\n\n#define THREAD_COUNT 4\n\nvoid* expire_keys(void* arg) {\n    \/\/ \u5047\u8a2d\u9019\u88e1\u6709\u4e00\u500b\u51fd\u6578\u53ef\u4ee5\u6aa2\u67e5\u548c\u522a\u9664\u904e\u671f\u9375\n    while (1) {\n        \/\/ \u6aa2\u67e5\u904e\u671f\u9375\u4e26\u522a\u9664\n        check_and_delete_expired_keys();\n        sleep(1); \/\/ \u6bcf\u79d2\u6aa2\u67e5\u4e00\u6b21\n    }\n    return NULL;\n}\n\nint main() {\n    pthread_t threads[THREAD_COUNT];\n    for (int i = 0; i < THREAD_COUNT; i++) {\n        pthread_create(&threads[i], NULL, expire_keys, NULL);\n    }\n    for (int i = 0; i < THREAD_COUNT; i++) {\n        pthread_join(threads[i], NULL);\n    }\n    return 0;\n}\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u591a\u500b\u7dda\u7a0b\uff0c\u6bcf\u500b\u7dda\u7a0b\u90fd\u6703\u5b9a\u671f\u6aa2\u67e5\u548c\u522a\u9664\u904e\u671f\u9375\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u904e\u671f\u9375\u7684\u56de\u6536\u6548\u7387\uff0c\u6e1b\u5c11\u5167\u5b58\u7684\u6d6a\u8cbb\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
Redis \u7684\u904e\u671f\u9375\u7ba1\u7406\u662f\u5176\u9ad8\u6548\u904b\u884c\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0c\u63a1\u7528\u591a\u7dda\u7a0b\u512a\u5316\u4f86\u63d0\u5347\u904e\u671f\u9375\u7684\u81ea\u52d5\u56de\u6536\u6548\u7387\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u6709\u6548\u7ba1\u7406\u5167\u5b58\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc \u9999\u6e2fVPS<\/a> \u53ca\u5176\u5728 Redis \u61c9\u7528\u4e2d\u7684\u512a\u52e2\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22 Redis \u904e\u671f\u591a\u7dda\u7a0b\u512a\u5316\u6280\u8853\uff0c\u5be6\u73fe\u9ad8\u6548\u7684 Key \u81ea\u52d5\u56de\u6536\uff0c\u63d0\u5347\u6027\u80fd\u8207\u8cc7\u6e90\u7ba1\u7406\u6548\u7387\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-103817","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/103817","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=103817"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/103817\/revisions"}],"predecessor-version":[{"id":103818,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/103817\/revisions\/103818"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=103817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=103817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=103817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}