{"id":163625,"date":"2024-11-05T01:04:30","date_gmt":"2024-11-04T17:04:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163625\/"},"modified":"2024-11-05T01:04:31","modified_gmt":"2024-11-04T17:04:31","slug":"%e8%a7%a3%e6%b1%baredis%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97%e9%87%8d%e8%a9%a6%e6%a9%9f%e5%88%b6%e7%a0%94%e7%a9%b6%ef%bc%88redis%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97%e9%87%8d%e8%a9%a6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163625\/","title":{"rendered":"\u89e3\u6c7aRedis\u6d88\u606f\u968a\u5217\u91cd\u8a66\u6a5f\u5236\u7814\u7a76\uff08redis\u6d88\u606f\u968a\u5217\u91cd\u8a66\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%baredis%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97%e9%87%8d%e8%a9%a6%e6%a9%9f%e5%88%b6%e7%a0%94%e7%a9%b6%ef%bc%88redis%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97%e9%87%8d%e8%a9%a6%ef%bc%89-ZCqOBrdDMd\">\u89e3\u6c7aRedis\u6d88\u606f\u968a\u5217\u91cd\u8a66\u6a5f\u5236\u7814\u7a76\uff08redis\u6d88\u606f\u968a\u5217\u91cd\u8a66\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6d88\u606f\u968a\u5217\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5e38\u88ab\u7528\u4f5c\u6d88\u606f\u968a\u5217\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u7136\u800c\uff0c\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u6d88\u606f\u7684\u53ef\u9760\u6027\u548c\u91cd\u8a66\u6a5f\u5236\u662f\u958b\u767c\u8005\u9700\u8981\u9762\u5c0d\u7684\u91cd\u8981\u6311\u6230\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u6d88\u606f\u968a\u5217\u7684\u91cd\u8a66\u6a5f\u5236\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"redis%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-ZCqOBrdDMd\">Redis\u6d88\u606f\u968a\u5217\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u6d88\u606f\u968a\u5217\u4e3b\u8981\u4f9d\u8cf4\u65bc\u5176\u5217\u8868\uff08List\uff09\u6578\u64da\u7d50\u69cb\u4f86\u5be6\u73fe\u3002\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528LPUSH\u548cRPOP\u547d\u4ee4\u4f86\u5c07\u6d88\u606f\u63a8\u5165\u968a\u5217\u548c\u5f9e\u968a\u5217\u4e2d\u53d6\u51fa\u6d88\u606f\u3002\u9019\u7a2e\u7c21\u55ae\u7684\u64cd\u4f5c\u4f7f\u5f97Redis\u6210\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u6d88\u606f\u50b3\u905e\u7cfb\u7d71\uff0c\u4f46\u540c\u6642\u4e5f\u5e36\u4f86\u4e86\u6d88\u606f\u4e1f\u5931\u548c\u91cd\u8a66\u7684\u554f\u984c\u3002<\/p>\n<h2 id=\"%e9%87%8d%e8%a9%a6%e6%a9%9f%e5%88%b6%e7%9a%84%e9%87%8d%e8%a6%81%e6%80%a7-ZCqOBrdDMd\">\u91cd\u8a66\u6a5f\u5236\u7684\u91cd\u8981\u6027<\/h2>\n<p>\u5728\u6d88\u606f\u8655\u7406\u904e\u7a0b\u4e2d\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u591a\u7a2e\u60c5\u6cc1\u5c0e\u81f4\u6d88\u606f\u8655\u7406\u5931\u6557\uff0c\u4f8b\u5982\u6d88\u8cbb\u8005\u5d29\u6f70\u3001\u7db2\u7d61\u554f\u984c\u6216\u6578\u64da\u5eab\u932f\u8aa4\u7b49\u3002\u9019\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u91cd\u8a66\u6a5f\u5236\u80fd\u5920\u78ba\u4fdd\u6d88\u606f\u4e0d\u6703\u88ab\u907a\u6f0f\uff0c\u4e26\u4e14\u80fd\u5920\u5728\u5f8c\u7e8c\u7684\u8655\u7406\u4e2d\u518d\u6b21\u5617\u8a66\u3002\u6709\u6548\u7684\u91cd\u8a66\u6a5f\u5236\u80fd\u5920\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u9760\u6027\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"redis%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97%e7%9a%84%e9%87%8d%e8%a9%a6%e7%ad%96%e7%95%a5-ZCqOBrdDMd\">Redis\u6d88\u606f\u968a\u5217\u7684\u91cd\u8a66\u7b56\u7565<\/h2>\n<p>\u5728Redis\u4e2d\u5be6\u73fe\u6d88\u606f\u91cd\u8a66\u6a5f\u5236\u6709\u5e7e\u7a2e\u5e38\u898b\u7684\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u6b7b\u4fe1\u968a\u5217\uff08Dead Letter Queue\uff09<\/strong>: \u7576\u6d88\u606f\u8655\u7406\u5931\u6557\u9054\u5230\u4e00\u5b9a\u6b21\u6578\u5f8c\uff0c\u53ef\u4ee5\u5c07\u8a72\u6d88\u606f\u8f49\u79fb\u5230\u4e00\u500b\u5c08\u9580\u7684\u6b7b\u4fe1\u968a\u5217\u4e2d\uff0c\u4fbf\u65bc\u5f8c\u7e8c\u7684\u4eba\u5de5\u5e72\u9810\u6216\u7279\u6b8a\u8655\u7406\u3002<\/li>\n<li><strong>\u5ef6\u9072\u91cd\u8a66\uff08Delayed Retry\uff09<\/strong>: \u5728\u6d88\u606f\u8655\u7406\u5931\u6557\u5f8c\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u5ef6\u9072\u6642\u9593\uff0c\u7136\u5f8c\u518d\u5c07\u6d88\u606f\u91cd\u65b0\u653e\u56de\u968a\u5217\u4e2d\u9032\u884c\u91cd\u8a66\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u77ac\u6642\u7684\u91cd\u8a66\u5c0e\u81f4\u7684\u7cfb\u7d71\u8ca0\u64d4\u3002<\/li>\n<li><strong>\u8a08\u6578\u5668\uff08Retry Counter\uff09<\/strong>: \u70ba\u6bcf\u500b\u6d88\u606f\u8a2d\u7f6e\u4e00\u500b\u91cd\u8a66\u8a08\u6578\u5668\uff0c\u7576\u8a08\u6578\u5668\u9054\u5230\u4e0a\u9650\u6642\uff0c\u5c07\u6d88\u606f\u79fb\u81f3\u6b7b\u4fe1\u968a\u5217\u6216\u8a18\u9304\u65e5\u8a8c\u4ee5\u4fbf\u5f8c\u7e8c\u5206\u6790\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e7%8f%be%e7%a4%ba%e4%be%8b-ZCqOBrdDMd\">\u5be6\u73fe\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u91cd\u8a66\u6a5f\u5236\uff1a<\/p>\n<pre><code>import redis\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ndef process_message(message):\n    # \u6a21\u64ec\u6d88\u606f\u8655\u7406\n    if message == \"fail\":\n        raise Exception(\"Processing failed\")\n\ndef retry_message(message, retries=3):\n    for attempt in range(retries):\n        try:\n            process_message(message)\n            print(f\"Processed message: {message}\")\n            return\n        except Exception as e:\n            print(f\"Attempt {attempt + 1} failed: {e}\")\n            time.sleep(1)  # \u5ef6\u9072\u91cd\u8a66\n    # \u5c07\u6d88\u606f\u79fb\u81f3\u6b7b\u4fe1\u968a\u5217\n    r.lpush(\"dead_letter_queue\", message)\n    print(f\"Message {message} moved to dead letter queue\")\n\n# \u6e2c\u8a66\u91cd\u8a66\u6a5f\u5236\nmessages = [\"success\", \"fail\", \"success\"]\nfor msg in messages:\n    retry_message(msg)\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-ZCqOBrdDMd\">\u7d50\u8ad6<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u6d88\u606f\u968a\u5217\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u91cd\u8a66\u6a5f\u5236\u4f86\u61c9\u5c0d\u6d88\u606f\u8655\u7406\u4e2d\u7684\u5404\u7a2e\u6311\u6230\u3002\u901a\u904e\u5be6\u65bd\u6b7b\u4fe1\u968a\u5217\u3001\u5ef6\u9072\u91cd\u8a66\u548c\u8a08\u6578\u5668\u7b49\u7b56\u7565\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u9760\u6027\u548c\u7a69\u5b9a\u6027\u3002\u5728\u8a2d\u8a08\u548c\u5be6\u73fe\u9019\u4e9b\u6a5f\u5236\u6642\uff0c\u958b\u767c\u8005\u61c9\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u548c\u7cfb\u7d71\u67b6\u69cb\u9032\u884c\u8abf\u6574\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u6d88\u606f\u961f\u5217\u91cd\u8bd5\u673a\u5236\u7684\u7814\u7a76\uff0c\u4f18\u5316\u6d88\u606f\u5904\u7406\u4e0e\u91cd\u8bd5\u7b56\u7565\uff0c\u63d0\u9ad8\u7cfb\u7edf\u53ef\u9760\u6027\u4e0e\u6027\u80fd\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-163625","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163625","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=163625"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163625\/revisions"}],"predecessor-version":[{"id":163626,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163625\/revisions\/163626"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}