{"id":163445,"date":"2024-11-04T23:34:18","date_gmt":"2024-11-04T15:34:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163445\/"},"modified":"2024-11-04T23:34:19","modified_gmt":"2024-11-04T15:34:19","slug":"%e8%a7%a3%e6%b1%baredis%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%e5%84%aa%e5%8c%96%e7%9a%84%e5%a4%9a%e7%b7%9a%e7%a8%8b%e6%8a%80%e8%a1%93%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\/163445\/","title":{"rendered":"\u89e3\u6c7aRedis\u904e\u671f\u6642\u9593\u512a\u5316\u7684\u591a\u7dda\u7a0b\u6280\u8853\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%baredis%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%e5%84%aa%e5%8c%96%e7%9a%84%e5%a4%9a%e7%b7%9a%e7%a8%8b%e6%8a%80%e8%a1%93-SOynchlaSC\">\u89e3\u6c7aRedis\u904e\u671f\u6642\u9593\u512a\u5316\u7684\u591a\u7dda\u7a0b\u6280\u8853<\/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\u904e\u671f\u6642\u9593\u529f\u80fd\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u8a2d\u7f6e\u9375\u7684\u6709\u6548\u671f\uff0c\u5f9e\u800c\u81ea\u52d5\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0cRedis\u5728\u8655\u7406\u904e\u671f\u9375\u6642\u53ef\u80fd\u6703\u9762\u81e8\u6027\u80fd\u74f6\u9838\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u901a\u904e\u591a\u7dda\u7a0b\u6280\u8853\u4f86\u512a\u5316Redis\u7684\u904e\u671f\u6642\u9593\u8655\u7406\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-SOynchlaSC\">Redis\u7684\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis\u652f\u6301\u5169\u7a2e\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\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u4e26\u522a\u9664\u5df2\u904e\u671f\u7684\u9375\uff1b\u800c\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\u82e5\u904e\u671f\u5247\u522a\u9664\u3002\u9019\u5169\u7a2e\u6a5f\u5236\u5404\u6709\u512a\u7f3a\u9ede\uff0c\u4f46\u5728\u9ad8\u4e26\u767c\u5834\u666f\u4e0b\uff0c\u5b9a\u6642\u522a\u9664\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e6%8a%80%e8%a1%93%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-SOynchlaSC\">\u591a\u7dda\u7a0b\u6280\u8853\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0cRedis\u7684\u55ae\u7dda\u7a0b\u6a21\u578b\u53ef\u80fd\u6210\u70ba\u6027\u80fd\u74f6\u9838\u3002\u7576\u5927\u91cf\u9375\u540c\u6642\u904e\u671f\u6642\uff0cRedis\u9700\u8981\u5728\u55ae\u4e00\u7dda\u7a0b\u4e2d\u8655\u7406\u6240\u6709\u904e\u671f\u9375\u7684\u522a\u9664\uff0c\u9019\u6703\u5c0e\u81f4\u5ef6\u9072\u589e\u52a0\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u4e00\u554f\u984c\uff0c\u53ef\u4ee5\u8003\u616e\u5f15\u5165\u591a\u7dda\u7a0b\u6280\u8853\uff0c\u5c07\u904e\u671f\u9375\u7684\u522a\u9664\u4efb\u52d9\u5206\u914d\u5230\u591a\u500b\u7dda\u7a0b\u4e2d\u9032\u884c\u8655\u7406\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%81%8e%e6%9c%9f%e5%88%aa%e9%99%a4%e7%9a%84%e5%af%a6%e7%8f%be-SOynchlaSC\">\u591a\u7dda\u7a0b\u904e\u671f\u522a\u9664\u7684\u5be6\u73fe<\/h2>\n<p>\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u522a\u9664\u7684\u57fa\u672c\u601d\u8def\u662f\u5c07\u904e\u671f\u9375\u7684\u6aa2\u67e5\u548c\u522a\u9664\u64cd\u4f5c\u5206\u914d\u7d66\u591a\u500b\u5de5\u4f5c\u7dda\u7a0b\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Python\u7684\u591a\u7dda\u7a0b\u5eab\u4f86\u5be6\u73fe\u9019\u4e00\u529f\u80fd\uff1a<\/p>\n<pre><code>import redis\nimport threading\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u5b9a\u7fa9\u522a\u9664\u904e\u671f\u9375\u7684\u51fd\u6578\ndef delete_expired_keys():\n    while True:\n        # \u7372\u53d6\u6240\u6709\u9375\n        keys = r.keys('*')\n        for key in keys:\n            # \u6aa2\u67e5\u9375\u7684\u904e\u671f\u6642\u9593\n            if r.ttl(key) == -1:\n                continue  # \u9375\u672a\u8a2d\u7f6e\u904e\u671f\u6642\u9593\n            elif r.ttl(key) == 0:\n                r.delete(key)  # \u522a\u9664\u904e\u671f\u9375\n        time.sleep(1)  # \u6bcf\u79d2\u6aa2\u67e5\u4e00\u6b21\n\n# \u5275\u5efa\u591a\u500b\u7dda\u7a0b\nthreads = []\nfor i in range(5):  # \u5275\u5efa5\u500b\u7dda\u7a0b\n    t = threading.Thread(target=delete_expired_keys)\n    threads.append(t)\n    t.start()\n\n# \u7b49\u5f85\u6240\u6709\u7dda\u7a0b\u5b8c\u6210\nfor t in threads:\n    t.join()\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e94\u500b\u7dda\u7a0b\uff0c\u6bcf\u500b\u7dda\u7a0b\u90fd\u6703\u5b9a\u671f\u6aa2\u67e5\u4e26\u522a\u9664\u904e\u671f\u7684\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u55ae\u7dda\u7a0b\u8655\u7406\u904e\u671f\u9375\u6240\u5e36\u4f86\u7684\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-SOynchlaSC\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u5be6\u65bd\u591a\u7dda\u7a0b\u904e\u671f\u522a\u9664\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u78ba\u4fdd\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\u5c0d\u540c\u4e00\u9375\u7684\u64cd\u4f5c\u4e0d\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/li>\n<li><strong>\u6027\u80fd\u76e3\u63a7\uff1a<\/strong>\u5b9a\u671f\u76e3\u63a7Redis\u7684\u6027\u80fd\u6307\u6a19\uff0c\u4ee5\u78ba\u4fdd\u591a\u7dda\u7a0b\u522a\u9664\u4e0d\u6703\u5f15\u5165\u984d\u5916\u7684\u5ef6\u9072\u3002<\/li>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u9700\u59a5\u5584\u8655\u7406\u53ef\u80fd\u51fa\u73fe\u7684\u7570\u5e38\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-SOynchlaSC\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u5f15\u5165\u591a\u7dda\u7a0b\u6280\u8853\uff0cRedis\u7684\u904e\u671f\u6642\u9593\u8655\u7406\u53ef\u4ee5\u5f97\u5230\u986f\u8457\u512a\u5316\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u5834\u666f\u4e0b\u3002\u9019\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\uff0c\u9084\u80fd\u6e1b\u5c11\u7528\u6236\u7684\u5ef6\u9072\u9ad4\u9a57\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6280\u8853\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684Redis\u670d\u52d9\uff0c\u4eab\u53d7\u66f4\u597d\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u904e\u671f\u6642\u9593\u512a\u5316\u7684\u591a\u7dda\u7a0b\u6280\u8853\uff0c\u63d0\u9ad8\u6027\u80fd\u8207\u6548\u7387\uff0c\u89e3\u6c7a\u9ad8\u4f75\u767c\u74b0\u5883\u4e0b\u7684\u904e\u671f\u7ba1\u7406\u6311\u6230\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-163445","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163445","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=163445"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163445\/revisions"}],"predecessor-version":[{"id":163446,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163445\/revisions\/163446"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}