{"id":99106,"date":"2024-10-21T08:11:16","date_gmt":"2024-10-21T00:11:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/99106\/"},"modified":"2024-10-21T08:11:16","modified_gmt":"2024-10-21T00:11:16","slug":"redis-%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%8c%96%e9%81%bf%e5%85%8d%e9%81%8e%e6%9c%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/99106\/","title":{"rendered":"Redis \u591a\u7dda\u7a0b\u5316\u907f\u514d\u904e\u671f"},"content":{"rendered":"<h1 id=\"redis-%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%8c%96%e9%81%bf%e5%85%8d%e9%81%8e%e6%9c%9f-eFASbXMFtt\">Redis \u591a\u7dda\u7a0b\u5316\u907f\u514d\u904e\u671f<\/h1>\n<p>Redis \u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5eab\u7b49\u3002\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0cRedis \u7684\u6027\u80fd\u512a\u5316\u6210\u70ba\u4e86\u958b\u767c\u8005\u95dc\u6ce8\u7684\u7126\u9ede\u4e4b\u4e00\u3002\u7279\u5225\u662f\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u6210\u70ba\u4e86\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u95dc\u9375\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-eFASbXMFtt\">Redis \u7684\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u6a5f\u5236\uff1a\u5b9a\u671f\u522a\u9664\u548c\u60f0\u6027\u522a\u9664\u3002\u5b9a\u671f\u522a\u9664\u662f\u6307 Redis \u6703\u5728\u6bcf\u79d2\u96a8\u6a5f\u9078\u64c7\u4e00\u90e8\u5206\u9375\u4f86\u6aa2\u67e5\u5176\u662f\u5426\u904e\u671f\uff1b\u800c\u60f0\u6027\u522a\u9664\u5247\u662f\u5728\u5ba2\u6236\u7aef\u8a2a\u554f\u67d0\u500b\u9375\u6642\uff0c\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u904e\u671f\uff0c\u82e5\u904e\u671f\u5247\u522a\u9664\u3002<\/p>\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\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002\u7279\u5225\u662f\u5728\u5927\u91cf\u9375\u540c\u6642\u904e\u671f\u7684\u60c5\u6cc1\u4e0b\uff0cRedis \u7684\u55ae\u7dda\u7a0b\u7279\u6027\u53ef\u80fd\u6703\u5c0e\u81f4\u5ef6\u9072\u589e\u52a0\uff0c\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%8c%96%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-eFASbXMFtt\">\u591a\u7dda\u7a0b\u5316\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0cRedis \u7684\u55ae\u7dda\u7a0b\u6a21\u578b\u53ef\u80fd\u7121\u6cd5\u5145\u5206\u5229\u7528\u591a\u6838 CPU \u7684\u512a\u52e2\u3002\u9019\u610f\u5473\u8457\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0cRedis \u53ef\u80fd\u7121\u6cd5\u5feb\u901f\u8655\u7406\u6240\u6709\u8acb\u6c42\uff0c\u5f9e\u800c\u5c0e\u81f4\u5ef6\u9072\u548c\u6027\u80fd\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u5c07 Redis \u7684\u904e\u671f\u6a5f\u5236\u591a\u7dda\u7a0b\u5316\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u6027\u80fd\uff0c\u6e1b\u5c11\u5ef6\u9072\u3002<\/p>\n<h2 id=\"%e5%af%a6%e7%8f%be%e5%a4%9a%e7%b7%9a%e7%a8%8b%e5%8c%96%e7%9a%84%e7%ad%96%e7%95%a5-eFASbXMFtt\">\u5be6\u73fe\u591a\u7dda\u7a0b\u5316\u7684\u7b56\u7565<\/h2>\n<p>\u8981\u5be6\u73fe Redis \u7684\u591a\u7dda\u7a0b\u5316\u904e\u671f\u7ba1\u7406\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u5206\u7247\u904e\u671f\u6aa2\u67e5\uff1a<\/strong>\u5c07\u9375\u5206\u7247\uff0c\u4e26\u70ba\u6bcf\u500b\u5206\u7247\u5206\u914d\u4e00\u500b\u7dda\u7a0b\u4f86\u6aa2\u67e5\u904e\u671f\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u55ae\u500b\u7dda\u7a0b\u7684\u8ca0\u64d4\uff0c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5b9a\u6642\u4efb\u52d9\uff1a<\/strong>\u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9\uff0c\u5b9a\u671f\u6aa2\u67e5\u904e\u671f\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5728\u9ad8\u4e26\u767c\u6642\u671f\u96c6\u4e2d\u6aa2\u67e5\u904e\u671f\u9375\uff0c\u5f9e\u800c\u6e1b\u5c11\u5ef6\u9072\u3002<\/li>\n<li><strong>\u512a\u5316\u904e\u671f\u7b56\u7565\uff1a<\/strong>\u6839\u64da\u5be6\u969b\u9700\u6c42\uff0c\u8abf\u6574\u904e\u671f\u7b56\u7565\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e0d\u5e38\u8a2a\u554f\u7684\u9375\uff0c\u53ef\u4ee5\u9078\u64c7\u66f4\u9577\u7684\u904e\u671f\u6642\u9593\uff0c\u6e1b\u5c11\u904e\u671f\u6aa2\u67e5\u7684\u983b\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bb%a3%e7%a2%bc%e7%a4%ba%e4%be%8b-eFASbXMFtt\">\u4ee3\u78bc\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Python \u4ee3\u78bc\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u591a\u7dda\u7a0b\u4f86\u6aa2\u67e5 Redis \u4e2d\u7684\u904e\u671f\u9375\uff1a<\/p>\n<pre><code>\nimport redis\nimport threading\nimport time\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ndef check_expired_keys():\n    while True:\n        # \u96a8\u6a5f\u9078\u64c7\u4e00\u90e8\u5206\u9375\u9032\u884c\u904e\u671f\u6aa2\u67e5\n        keys = r.keys('*')\n        for key in keys:\n            if r.ttl(key) == -1:\n                continue  # \u9375\u672a\u8a2d\u7f6e\u904e\u671f\u6642\u9593\n            if 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(4):  # \u5275\u5efa4\u500b\u7dda\u7a0b\n    t = threading.Thread(target=check_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<h2 id=\"%e7%b5%90%e8%ab%96-eFASbXMFtt\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0cRedis \u7684\u904e\u671f\u7ba1\u7406\u662f\u4e00\u500b\u91cd\u8981\u7684\u6027\u80fd\u74f6\u9838\u3002\u901a\u904e\u5be6\u73fe\u591a\u7dda\u7a0b\u5316\u7684\u904e\u671f\u6aa2\u67e5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u7cfb\u7d71\u6027\u80fd\uff0c\u6e1b\u5c11\u5ef6\u9072\u3002\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u5be6\u969b\u9700\u6c42\uff0c\u9078\u64c7\u5408\u9069\u7684\u7b56\u7565\u4f86\u512a\u5316\u904e\u671f\u7ba1\u7406\uff0c\u5f9e\u800c\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u6548\u7387\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe\u591a\u7dda\u7a0b\u5316\u4ee5\u907f\u514d\u904e\u671f\u554f\u984c\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6578\u64da\u4e00\u81f4\u6027\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-99106","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99106","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=99106"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99106\/revisions"}],"predecessor-version":[{"id":99107,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99106\/revisions\/99107"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=99106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=99106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=99106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}