{"id":103941,"date":"2024-10-22T16:59:31","date_gmt":"2024-10-22T08:59:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/103941\/"},"modified":"2024-10-22T16:59:32","modified_gmt":"2024-10-22T08:59:32","slug":"redis-%e9%81%8e%e6%9c%9f%e5%a4%9a%e7%b7%9a%e7%a8%8b%e6%9c%89%e6%95%88%e8%a7%a3%e6%b1%ba%e8%b3%87%e6%ba%90%e5%9b%9e%e6%94%b6%e5%95%8f%e9%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/103941\/","title":{"rendered":"Redis \u904e\u671f\u591a\u7dda\u7a0b\u6709\u6548\u89e3\u6c7a\u8cc7\u6e90\u56de\u6536\u554f\u984c"},"content":{"rendered":"<h1 id=\"redis-%e9%81%8e%e6%9c%9f%e5%a4%9a%e7%b7%9a%e7%a8%8b%e6%9c%89%e6%95%88%e8%a7%a3%e6%b1%ba%e8%b3%87%e6%ba%90%e5%9b%9e%e6%94%b6%e5%95%8f%e9%a1%8c-wrLjkHpUik\">Redis \u904e\u671f\u591a\u7dda\u7a0b\u6709\u6548\u89e3\u6c7a\u8cc7\u6e90\u56de\u6536\u554f\u984c<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0cRedis \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\u6301\u4e45\u5316\u7b49\u5834\u666f\u3002\u96a8\u8457\u61c9\u7528\u7684\u589e\u9577\uff0c\u5982\u4f55\u6709\u6548\u7ba1\u7406\u8cc7\u6e90\uff0c\u7279\u5225\u662f\u904e\u671f\u9375\u7684\u56de\u6536\uff0c\u6210\u70ba\u4e86\u958b\u767c\u8005\u9700\u8981\u9762\u5c0d\u7684\u91cd\u8981\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u7684\u904e\u671f\u9375\u7ba1\u7406\u6a5f\u5236\uff0c\u4e26\u4ecb\u7d39\u5982\u4f55\u5229\u7528\u591a\u7dda\u7a0b\u6280\u8853\u4f86\u512a\u5316\u8cc7\u6e90\u56de\u6536\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e9%81%8e%e6%9c%9f%e9%8d%b5%e7%ae%a1%e7%90%86%e6%a9%9f%e5%88%b6-wrLjkHpUik\">Redis \u7684\u904e\u671f\u9375\u7ba1\u7406\u6a5f\u5236<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u9375\u7ba1\u7406\u65b9\u5f0f\uff1a\u5b9a\u671f\u6aa2\u67e5\u548c\u60f0\u6027\u522a\u9664\u3002<\/p>\n<ul>\n<li><strong>\u60f0\u6027\u522a\u9664\uff1a<\/strong>\u7576\u5ba2\u6236\u7aef\u8acb\u6c42\u67d0\u500b\u9375\u6642\uff0cRedis \u6703\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u904e\u671f\u3002\u5982\u679c\u904e\u671f\uff0c\u5247\u522a\u9664\u8a72\u9375\u4e26\u8fd4\u56de nil\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6aa2\u67e5\uff1a<\/strong>Redis \u6bcf\u9694 100 \u6beb\u79d2\u96a8\u6a5f\u6aa2\u67e5\u4e00\u90e8\u5206\u9375\uff0c\u522a\u9664\u904e\u671f\u7684\u9375\u3002\u9019\u7a2e\u65b9\u5f0f\u80fd\u5920\u6709\u6548\u6e1b\u5c11\u5167\u5b58\u7684\u4f7f\u7528\uff0c\u4f46\u5728\u9ad8\u6d41\u91cf\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u904e\u671f\u9375\u7684\u56de\u6536\u4e0d\u53ca\u6642\u3002<\/li>\n<\/ul>\n<p>\u9019\u5169\u7a2e\u65b9\u5f0f\u5404\u6709\u512a\u7f3a\u9ede\uff0c\u60f0\u6027\u522a\u9664\u5728\u4f4e\u6d41\u91cf\u6642\u8868\u73fe\u826f\u597d\uff0c\u4f46\u5728\u9ad8\u6d41\u91cf\u6642\u53ef\u80fd\u5c0e\u81f4\u904e\u671f\u9375\u7684\u7a4d\u58d3\uff1b\u800c\u5b9a\u671f\u6aa2\u67e5\u5247\u53ef\u80fd\u5728\u9ad8\u6d41\u91cf\u6642\u9020\u6210\u6027\u80fd\u74f6\u9838\u3002\u56e0\u6b64\uff0c\u958b\u767c\u8005\u9700\u8981\u5c0b\u627e\u66f4\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u904e\u671f\u9375\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e6%8a%80%e8%a1%93%e7%9a%84%e6%87%89%e7%94%a8-wrLjkHpUik\">\u591a\u7dda\u7a0b\u6280\u8853\u7684\u61c9\u7528<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7a\u904e\u671f\u9375\u56de\u6536\u7684\u554f\u984c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u591a\u7dda\u7a0b\u6280\u8853\u3002\u901a\u904e\u5c07\u904e\u671f\u9375\u7684\u6aa2\u67e5\u548c\u522a\u9664\u64cd\u4f5c\u5206\u914d\u5230\u591a\u500b\u7dda\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u8cc7\u6e90\u56de\u6536\u7684\u6548\u7387\u3002<\/p>\n<h3 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%81%8e%e6%9c%9f%e9%8d%b5%e5%9b%9e%e6%94%b6%e7%9a%84%e5%af%a6%e7%8f%be-wrLjkHpUik\">\u591a\u7dda\u7a0b\u904e\u671f\u9375\u56de\u6536\u7684\u5be6\u73fe<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Python \u7684 threading \u6a21\u7d44\u4f86\u5be6\u73fe\u591a\u7dda\u7a0b\u7684\u904e\u671f\u9375\u56de\u6536\uff1a<\/p>\n<pre><code>import redis\nimport threading\nimport time\n\n# \u9023\u63a5\u5230 Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\ndef expire_keys():\n    while True:\n        # \u96a8\u6a5f\u9078\u64c7\u4e00\u500b\u9375\u9032\u884c\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(5):\n    t = threading.Thread(target=expire_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 Redis \u4e2d\u7684\u9375\uff0c\u4e26\u522a\u9664\u904e\u671f\u7684\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u5206\u6563\u8ca0\u8f09\uff0c\u63d0\u9ad8\u904e\u671f\u9375\u7684\u56de\u6536\u6548\u7387\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-wrLjkHpUik\">\u7d50\u8ad6<\/h2>\n<p>Redis \u7684\u904e\u671f\u9375\u7ba1\u7406\u662f\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u548c\u8cc7\u6e90\u5229\u7528\u7387\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002\u901a\u904e\u7d50\u5408\u591a\u7dda\u7a0b\u6280\u8853\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u89e3\u6c7a\u904e\u671f\u9375\u7684\u56de\u6536\u554f\u984c\uff0c\u5f9e\u800c\u63d0\u5347\u61c9\u7528\u7684\u6574\u9ad4\u6027\u80fd\u3002\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0c\u6301\u7e8c\u512a\u5316\u8cc7\u6e90\u7ba1\u7406\u7b56\u7565\u5c07\u6210\u70ba\u958b\u767c\u8005\u7684\u91cd\u8981\u4efb\u52d9\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u5982\u4f55\u6709\u6548\u89e3\u6c7a\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\u7684\u904e\u671f\u8cc7\u6e90\u56de\u6536\u554f\u984c\uff0c\u63d0\u5347\u7cfb\u7d71\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-103941","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/103941","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=103941"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/103941\/revisions"}],"predecessor-version":[{"id":103942,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/103941\/revisions\/103942"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=103941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=103941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=103941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}