{"id":180332,"date":"2024-11-09T09:21:54","date_gmt":"2024-11-09T01:21:54","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180332\/"},"modified":"2024-11-09T09:21:56","modified_gmt":"2024-11-09T01:21:56","slug":"%e8%a8%ad%e5%ae%9aredis%e9%81%8e%e6%9c%9f%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96%e6%96%b9%e6%a1%88%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\/180332\/","title":{"rendered":"\u8a2d\u5b9aRedis\u904e\u671f\u591a\u7dda\u7a0b\u512a\u5316\u65b9\u6848\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09"},"content":{"rendered":"<h1 id=\"%e8%a8%ad%e5%ae%9aredis%e9%81%8e%e6%9c%9f%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96%e6%96%b9%e6%a1%88%ef%bc%88redis%e9%81%8e%e6%9c%9f-%e5%a4%9a%e7%b7%9a%e7%a8%8b%ef%bc%89-RkitpkWPqM\">\u8a2d\u5b9aRedis\u904e\u671f\u591a\u7dda\u7a0b\u512a\u5316\u65b9\u6848\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002\u5176\u652f\u6301\u7684\u904e\u671f\u9375\u529f\u80fd\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u81ea\u52d5\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\uff0c\u5f9e\u800c\u7bc0\u7701\u5167\u5b58\u548c\u63d0\u9ad8\u6027\u80fd\u3002\u7136\u800c\uff0c\u7576\u6578\u64da\u91cf\u9f90\u5927\u6642\uff0c\u904e\u671f\u9375\u7684\u8655\u7406\u53ef\u80fd\u6703\u6210\u70ba\u6027\u80fd\u74f6\u9838\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u901a\u904e\u591a\u7dda\u7a0b\u512a\u5316Redis\u7684\u904e\u671f\u9375\u8655\u7406\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%81%8e%e6%9c%9f%e9%8d%b5%e6%a9%9f%e5%88%b6-RkitpkWPqM\">Redis\u7684\u904e\u671f\u9375\u6a5f\u5236<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u5169\u7a2e\u65b9\u5f0f\u4f86\u8655\u7406\u904e\u671f\u9375\uff1a<\/p>\n<ul>\n<li><strong>\u5b9a\u6642\u522a\u9664\uff1a<\/strong>Redis\u6703\u5b9a\u671f\u6aa2\u67e5\u904e\u671f\u9375\uff0c\u4e26\u5c07\u5176\u522a\u9664\u3002\u9019\u7a2e\u65b9\u5f0f\u7684\u512a\u9ede\u662f\u5be6\u73fe\u7c21\u55ae\uff0c\u4f46\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<li><strong>\u60f0\u6027\u522a\u9664\uff1a<\/strong>\u7576\u5ba2\u6236\u7aef\u8a2a\u554f\u4e00\u500b\u9375\u6642\uff0cRedis\u6703\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u904e\u671f\uff0c\u5982\u679c\u904e\u671f\u5247\u522a\u9664\u3002\u9019\u7a2e\u65b9\u5f0f\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u80fd\u5920\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u6aa2\u67e5\uff0c\u4f46\u5982\u679c\u904e\u671f\u9375\u6578\u91cf\u9f90\u5927\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u5ef6\u9072\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%84%aa%e5%8c%96%e6%96%b9%e6%a1%88-RkitpkWPqM\">\u591a\u7dda\u7a0b\u512a\u5316\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u63d0\u9ad8\u904e\u671f\u9375\u7684\u8655\u7406\u6548\u7387\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u591a\u7dda\u7a0b\u4f86\u512a\u5316Redis\u7684\u904e\u671f\u9375\u522a\u9664\u904e\u7a0b\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u5be6\u73fe\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8redis%e7%9a%84%e5%88%86%e7%89%87%e6%a9%9f%e5%88%b6-RkitpkWPqM\">1. \u4f7f\u7528Redis\u7684\u5206\u7247\u6a5f\u5236<\/h3>\n<p>\u5c07\u6578\u64da\u5206\u7247\u5b58\u5132\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e2d\uff0c\u6bcf\u500b\u5be6\u4f8b\u8ca0\u8cac\u4e00\u90e8\u5206\u6578\u64da\u3002\u9019\u6a23\u53ef\u4ee5\u5c07\u904e\u671f\u9375\u7684\u522a\u9664\u4efb\u52d9\u5206\u6563\u5230\u591a\u500b\u5be6\u4f8b\u4e0a\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<pre><code>\n# \u5047\u8a2d\u6709\u4e09\u500bRedis\u5be6\u4f8b\nredis-cli -h redis1.example.com\nredis-cli -h redis2.example.com\nredis-cli -h redis3.example.com\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%ae%a2%e6%88%b6%e7%ab%af-RkitpkWPqM\">2. \u4f7f\u7528\u591a\u7dda\u7a0b\u5ba2\u6236\u7aef<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528\u591a\u7dda\u7a0b\u7684\u5ba2\u6236\u7aef\u4f86\u4e26\u884c\u57f7\u884c\u904e\u671f\u9375\u7684\u522a\u9664\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Python\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nimport redis\nimport threading\n\ndef delete_expired_keys(redis_client):\n    while True:\n        # \u7372\u53d6\u6240\u6709\u904e\u671f\u9375\n        expired_keys = redis_client.keys('*')\n        for key in expired_keys:\n            if redis_client.ttl(key) == -1:  # \u5982\u679c\u9375\u6c92\u6709\u904e\u671f\n                continue\n            redis_client.delete(key)\n\n# \u5275\u5efa\u591a\u500b\u7dda\u7a0b\nclients = [redis.Redis(host='localhost', port=6379) for _ in range(5)]\nthreads = [threading.Thread(target=delete_expired_keys, args=(client,)) for client in clients]\n\nfor thread in threads:\n    thread.start()\n\nfor thread in threads:\n    thread.join()\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8redis%e7%9a%84lua%e8%85%b3%e6%9c%ac-RkitpkWPqM\">3. \u4f7f\u7528Redis\u7684Lua\u8173\u672c<\/h3>\n<p>\u5229\u7528Redis\u7684Lua\u8173\u672c\u53ef\u4ee5\u5728\u670d\u52d9\u5668\u7aef\u57f7\u884c\u904e\u671f\u9375\u7684\u522a\u9664\u64cd\u4f5c\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\u4e26\u63d0\u9ad8\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Lua\u8173\u672c\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal keys = redis.call('keys', '*')\nfor i=1, #keys do\n    if redis.call('ttl', keys[i]) == -1 then\n        -- \u9375\u672a\u904e\u671f\n    else\n        redis.call('del', keys[i])\n    end\nend\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-RkitpkWPqM\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u512a\u5316Redis\u7684\u904e\u671f\u9375\u8655\u7406\uff0c\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002\u5728\u9078\u64c7\u5177\u9ad4\u65b9\u6848\u6642\uff0c\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u548c\u7cfb\u7d71\u67b6\u69cb\u9032\u884c\u8abf\u6574\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u7684\u61c9\u7528\uff0c\u8003\u616e\u4f7f\u7528\u591a\u7dda\u7a0b\u548c\u5206\u7247\u6280\u8853\u5c07\u662f\u975e\u5e38\u6709\u6548\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\uff0c\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u8981\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u904e\u671f\u7ba1\u7406\u7684\u591a\u7dda\u7a0b\u512a\u5316\u65b9\u6848\uff0c\u63d0\u9ad8\u6027\u80fd\u8207\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u53ca\u6642\u6e05\u7406\u8207\u8cc7\u6e90\u6700\u4f73\u5229\u7528\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-180332","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180332","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=180332"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180332\/revisions"}],"predecessor-version":[{"id":180333,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180332\/revisions\/180333"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180332"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}