{"id":197556,"date":"2024-11-14T08:56:18","date_gmt":"2024-11-14T00:56:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/197556\/"},"modified":"2024-11-14T08:56:19","modified_gmt":"2024-11-14T00:56:19","slug":"%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%81%8e%e6%9c%9f%e8%99%95%e7%90%86%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\/197556\/","title":{"rendered":"\u5229\u7528Redis\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u8655\u7406\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%81%8e%e6%9c%9f%e8%99%95%e7%90%86%ef%bc%88redis%e9%81%8e%e6%9c%9f-%e5%a4%9a%e7%b7%9a%e7%a8%8b%ef%bc%89-yFTgSAgNJd\">\u5229\u7528Redis\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u8655\u7406\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002Redis\u7684\u904e\u671f\u529f\u80fd\u5141\u8a31\u958b\u767c\u8005\u8a2d\u7f6e\u9375\u7684\u6709\u6548\u671f\u9650\uff0c\u7576\u9375\u904e\u671f\u5f8c\uff0c\u81ea\u52d5\u522a\u9664\u3002\u9019\u5c0d\u65bc\u7ba1\u7406\u81e8\u6642\u6578\u64da\u975e\u5e38\u6709\u7528\u3002\u7136\u800c\uff0c\u7576\u9762\u5c0d\u5927\u91cf\u6578\u64da\u548c\u9ad8\u4e26\u767c\u8acb\u6c42\u6642\uff0c\u5982\u4f55\u6709\u6548\u5730\u8655\u7406\u904e\u671f\u9375\u6210\u70ba\u4e86\u4e00\u500b\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528\u591a\u7dda\u7a0b\u4f86\u5be6\u73feRedis\u7684\u904e\u671f\u8655\u7406\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-yFTgSAgNJd\">Redis\u7684\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u6a5f\u5236\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\u662f\u901a\u904e\u4e00\u500b\u5b9a\u6642\u4efb\u52d9\u4f86\u5be6\u73fe\u7684\uff0c\u901a\u5e38\u6bcf\u9694100\u6beb\u79d2\u6aa2\u67e5\u4e00\u6b21\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<\/li>\n<\/ul>\n<p>\u9019\u5169\u7a2e\u6a5f\u5236\u96d6\u7136\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u904e\u671f\u9375\uff0c\u4f46\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002\u56e0\u6b64\uff0c\u5229\u7528\u591a\u7dda\u7a0b\u4f86\u52a0\u901f\u904e\u671f\u8655\u7406\u662f\u4e00\u500b\u53ef\u884c\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%81%8e%e6%9c%9f%e8%99%95%e7%90%86%e7%9a%84%e6%80%9d%e8%b7%af-yFTgSAgNJd\">\u591a\u7dda\u7a0b\u904e\u671f\u8655\u7406\u7684\u601d\u8def<\/h2>\n<p>\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u5c07\u904e\u671f\u9375\u7684\u6aa2\u67e5\u548c\u522a\u9664\u64cd\u4f5c\u5206\u914d\u7d66\u591a\u500b\u7dda\u7a0b\u4f86\u57f7\u884c\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u904e\u671f\u8655\u7406\u7684\u6548\u7387\uff0c\u6e1b\u5c11\u55ae\u500b\u7dda\u7a0b\u7684\u8ca0\u64d4\u3002\u4ee5\u4e0b\u662f\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u8655\u7406\u7684\u57fa\u672c\u601d\u8def\uff1a<\/p>\n<ol>\n<li>\u555f\u52d5\u591a\u500b\u7dda\u7a0b\uff0c\u6bcf\u500b\u7dda\u7a0b\u8ca0\u8cac\u6aa2\u67e5\u548c\u522a\u9664\u4e00\u90e8\u5206\u904e\u671f\u9375\u3002<\/li>\n<li>\u4f7f\u7528Redis\u7684SCAN\u547d\u4ee4\u4f86\u904d\u6b77\u9375\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f09\u6240\u6709\u9375\u9020\u6210\u7684\u6027\u80fd\u554f\u984c\u3002<\/li>\n<li>\u5728\u6bcf\u500b\u7dda\u7a0b\u4e2d\uff0c\u6aa2\u67e5\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u4e26\u522a\u9664\u904e\u671f\u7684\u9375\u3002<\/li>\n<\/ol>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-yFTgSAgNJd\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Python\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u591a\u7dda\u7a0b\u4f86\u5be6\u73feRedis\u7684\u904e\u671f\u8655\u7406\uff1a<\/p>\n<pre><code>\nimport redis\nimport threading\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\ndef expire_handler(thread_id):\n    while True:\n        # \u4f7f\u7528SCAN\u547d\u4ee4\u904d\u6b77\u9375\n        cursor, keys = r.scan()\n        for key in keys:\n            # \u6aa2\u67e5\u9375\u7684\u904e\u671f\u6642\u9593\n            ttl = r.ttl(key)\n            if ttl &lt; 0:  # \u5982\u679c\u9375\u5df2\u904e\u671f\n                r.delete(key)\n                print(f&quot;Thread {thread_id} deleted key: {key.decode(&#039;utf-8&#039;)}&quot;)\n        time.sleep(1)  # \u6bcf\u79d2\u6aa2\u67e5\u4e00\u6b21\n\n# \u555f\u52d5\u591a\u500b\u7dda\u7a0b\nthreads = []\nfor i in range(5):\n    t = threading.Thread(target=expire_handler, args=(i,))\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<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-yFTgSAgNJd\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u8655\u7406\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u7dda\u7a0b\u5b89\u5168\uff1a\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u5c0dRedis\u7684\u64cd\u4f5c\u9700\u8981\u8003\u616e\u5230\u7dda\u7a0b\u5b89\u5168\u6027\uff0c\u907f\u514d\u6578\u64da\u7af6\u722d\u3002<\/li>\n<li>\u5408\u7406\u8a2d\u7f6e\u7dda\u7a0b\u6578\u91cf\uff1a\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u8abf\u6574\u7dda\u7a0b\u6578\u91cf\uff0c\u4ee5\u9054\u5230\u6700\u4f73\u6027\u80fd\u3002<\/li>\n<li>\u76e3\u63a7\u6027\u80fd\uff1a\u5b9a\u671f\u76e3\u63a7Redis\u7684\u6027\u80fd\u6307\u6a19\uff0c\u78ba\u4fdd\u904e\u671f\u8655\u7406\u4e0d\u6703\u5f71\u97ff\u6574\u9ad4\u7cfb\u7d71\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-yFTgSAgNJd\">\u7e3d\u7d50<\/h2>\n<p>\u5229\u7528\u591a\u7dda\u7a0b\u4f86\u5be6\u73feRedis\u7684\u904e\u671f\u8655\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u904e\u671f\u9375\u7684\u522a\u9664\u6548\u7387\uff0c\u6e1b\u5c11\u55ae\u7dda\u7a0b\u7684\u8ca0\u64d4\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u53ef\u4ee5\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u4fdd\u6301\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\uff0c\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\u7d22\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u8655\u7406\uff0c\u63d0\u9ad8\u6548\u7387\uff0c\u512a\u5316\u8cc7\u6e90\u7ba1\u7406\uff0c\u78ba\u4fdd\u6578\u64da\u53ca\u6642\u6e05\u7406\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-197556","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/197556","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=197556"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/197556\/revisions"}],"predecessor-version":[{"id":197557,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/197556\/revisions\/197557"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=197556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=197556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=197556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}