{"id":202300,"date":"2025-05-10T13:22:12","date_gmt":"2025-05-10T05:22:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202300\/"},"modified":"2025-05-10T13:22:12","modified_gmt":"2025-05-10T05:22:12","slug":"%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8redis%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e5%ae%9a%e6%97%b6%e4%bb%bb%e5%8a%a1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202300\/","title":{"rendered":"\u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1<\/h1>\n

\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\u300a\u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

Redis\u662f\u4e00\u4e2a\u51fa\u8272\u7684\u952e\u503c\u5b58\u50a8\u7cfb\u7edf\uff0c\u9664\u4e86\u4f5c\u4e3a\u7f13\u5b58\u4f7f\u7528\uff0c\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u7528\u9014\u3002\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u4f5c\u4e3a\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\u7684\u5b9e\u73b0\u5de5\u5177\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\uff0c\u540c\u65f6\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4ec0\u4e48\u662f\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\uff1f<\/h2>\n

\u5728\u5355\u673a\u73af\u5883\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b9a\u65f6\u4efb\u52a1\u6765\u5b9e\u73b0\u5b9a\u65f6\u8fd0\u884c\u67d0\u4e2a\u529f\u80fd\u6216\u4efb\u52a1\u3002\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\uff0c\u6bcf\u4e2a\u8282\u70b9\u90fd\u4f1a\u6709\u81ea\u5df1\u7684\u5b9a\u65f6\u4efb\u52a1\uff0c\u8fd9\u65f6\u5019\u5c31\u53ef\u80fd\u4f1a\u51fa\u73b0\u91cd\u590d\u6267\u884c\u3001\u9057\u6f0f\u6267\u884c\u7b49\u95ee\u9898\u3002\u56e0\u6b64\uff0c\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\u9700\u8981\u8003\u8651\u4efb\u52a1\u7684\u6267\u884c\u53ef\u9760\u6027\u3001\u4efb\u52a1\u7684\u5206\u53d1\u4e0e\u534f\u8c03\u7b49\u95ee\u9898\u3002<\/p>\n

Redis\u4f5c\u4e3a\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\u7684\u5b9e\u73b0\u5de5\u5177<\/h2>\n

Redis\u63d0\u4f9b\u4e86\u4e00\u4e9b\u80fd\u591f\u5f88\u597d\u5730\u652f\u6301\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\u7684\u6570\u636e\u7ed3\u6784\u548c\u547d\u4ee4\uff0c\u4f8b\u5982\uff1a<\/p>\n

    \n
  • Sorted Set\uff08\u6709\u5e8f\u96c6\u5408\uff09\uff1a\u53ef\u4ee5\u6309\u7167\u5206\u6570\uff08score\uff09\u6392\u5e8f\uff0c\u901a\u8fc7\u5206\u6570\u6765\u8bb0\u5f55\u4efb\u52a1\u7684\u6267\u884c\u65f6\u95f4\u3002<\/li>\n
  • expire\u547d\u4ee4\uff1a\u53ef\u4ee5\u4e3a\u67d0\u4e2akey\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u3002<\/li>\n
  • Lua\u811a\u672c\uff1a\u53ef\u4ee5\u5728\u539f\u5b50\u64cd\u4f5c\u4e2d\u6267\u884c\u591a\u4e2a\u547d\u4ee4\uff0c\u4ee5\u4fdd\u8bc1\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u548c\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n

    \u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\uff0c\u5e76\u63d0\u4f9b\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

    \u5b9e\u73b0\u6b65\u9aa4<\/h2>\n

    1. \u5c06\u4efb\u52a1\u4fe1\u606f\u5b58\u5165Redis\u7684Sorted Set\u4e2d<\/h3>\n

    \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5c06\u4efb\u52a1\u4fe1\u606f\u5b58\u5165Redis\u7684Sorted Set\u4e2d\u3002\u5728\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4efb\u52a1\u7684\u6267\u884c\u65f6\u95f4\uff08\u65f6\u95f4\u6233\uff09\u4f5c\u4e3a\u5206\u6570\uff0c\u5c06\u4efb\u52a1\u7684ID\u4f5c\u4e3a\u6210\u5458\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

    import redis\n\n# Connect to Redis\nredis_conn = redis.Redis(host='localhost', port=6379, db=0)\n\n# Add task to Sorted Set\ntask_id = \"task_001\"\nexecute_time = 1600000000  # timestamp (in seconds)\nredis_conn.zadd(\"tasks\", {task_id: execute_time})<\/pre>\n
    \u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6267\u884c\u4e86\u4e00\u4e2a\u540d\u4e3atask_001<\/code>\u7684\u4efb\u52a1\uff0c\u6267\u884c\u65f6\u95f4\u4e3a1600000000<\/code> \uff08\u8fd9\u91cc\u662f\u7528\u65f6\u95f4\u6233\u6765\u8868\u793a\u7684\uff0c\u5b9e\u9645\u4e0a\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u65b9\u5f0f\u6765\u8868\u793a\uff09\u3002\u5c06\u5b83\u5b58\u5165\u540d\u4e3atasks<\/code>\u7684Sorted Set\u4e2d\u3002<\/p>\n
    2. \u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4<\/h3>\n
    \u4e3a\u4e86\u907f\u514d\u8fc7\u671f\u4efb\u52a1\u4e00\u76f4\u5b58\u5728Redis\u4e2d\u5360\u7528\u7a7a\u95f4\uff0c\u6211\u4eec\u9700\u8981\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff0c\u5e76\u5728\u8fc7\u671f\u540e\u4eceSorted Set\u4e2d\u5220\u9664\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
    import time\n\n# Check for expired tasks every 10 seconds\nwhile True:\n    # Get all tasks with score less than current time\n    tasks = redis_conn.zrangebyscore(\"tasks\", 0, int(time.time()))\n\n    # Delete expired tasks\n    for task in tasks:\n        redis_conn.zrem(\"tasks\", task)<\/pre>\n
    \u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6bcf\u969410\u79d2\u68c0\u67e5\u4e00\u6b21\u8fc7\u671f\u4efb\u52a1\u5e76\u5220\u9664\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u4f7f\u7528\u4e86zrangebyscore<\/code>\u547d\u4ee4\uff0c\u83b7\u53d6\u5206\u6570\u57280<\/code>\uff08\u5373\u5f53\u524d\u65f6\u95f4\uff09 \u81f3 time.time()<\/code>\uff08\u5f53\u524d\u65f6\u95f4\u6233\uff09\u4e4b\u95f4\u7684\u4efb\u52a1\u3002\u5728\u83b7\u53d6\u5230\u4efb\u52a1\u540e\uff0c\u6211\u4eec\u4f7f\u7528\u4e86zrem<\/code>\u547d\u4ee4\uff0c\u4eceSorted set\u4e2d\u5220\u9664\u4efb\u52a1\u3002<\/p>\n
    3. \u6267\u884c\u4efb\u52a1<\/h3>\n
    \u5728\u68c0\u67e5\u8fc7\u671f\u4efb\u52a1\u65f6\uff0c\u6211\u4eec\u540c\u65f6\u4e5f\u8981\u6267\u884c\u8fd9\u4e9b\u8fc7\u671f\u4efb\u52a1\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
    import uuid\n\n# Consume tasks every 10 seconds\nwhile True:\n    # Get all tasks with score less than current time\n    tasks = redis_conn.zrangebyscore(\"tasks\", 0, int(time.time()))\n\n    # Execute tasks\n    for task in tasks:\n        # Check if task is already being executed by another worker\n        lock_id = redis_conn.get(\"lock_\" + task)\n        if lock_id is None:\n            # Lock task using Lua script\n            lock_id = str(uuid.uuid4())\n            lua_script = \"\"\"\n                if redis.call(\"get\", ARGV[1]) == false then\n                    redis.call(\"set\", ARGV[1], ARGV[2])\n                    redis.call(\"expire\", ARGV[1], 60)\n                    return true\n                else\n                    return false\n                end\n            \"\"\"\n            if redis_conn.eval(lua_script, 0, \"lock_\" + task, lock_id) is True:\n                # Execute task\n                print(\"Executing task \" + task)\n                # task.execute()\n                # ...\n\n                # Remove task from Sorted Set and unlock\n                redis_conn.zrem(\"tasks\", task)\n                redis_conn.delete(\"lock_\" + task)<\/pre>\n
    \u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6bcf\u969410\u79d2\u68c0\u67e5\u4e00\u6b21\u8fc7\u671f\u4efb\u52a1\u5e76\u6267\u884c\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u4f7f\u7528\u4e86zrangebyscore<\/code>\u547d\u4ee4\uff0c\u83b7\u53d6\u5206\u6570\u57280<\/code>\uff08\u5373\u5f53\u524d\u65f6\u95f4\uff09 \u81f3 time.time()<\/code>\uff08\u5f53\u524d\u65f6\u95f4\u6233\uff09\u4e4b\u95f4\u7684\u4efb\u52a1\u3002\u5728\u83b7\u53d6\u5230\u4efb\u52a1\u540e\uff0c\u6211\u4eec\u9996\u5148\u68c0\u67e5\u4efb\u52a1\u662f\u5426\u6b63\u5728\u88ab\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u6267\u884c\u3002\u4e3a\u4e86\u907f\u514d\u591a\u8fdb\u7a0b\u4e4b\u95f4\u540c\u65f6\u6267\u884c\u540c\u4e00\u4e2a\u4efb\u52a1\uff0c\u6211\u4eec\u4f7f\u7528\u4e86\u4e00\u4e2alock_id\uff0c\u7528\u6765\u6807\u8bc6\u8be5\u4efb\u52a1\u662f\u5426\u5df2\u88ab\u9501\u5b9a\u3002\u5982\u679c\u4efb\u52a1\u6ca1\u6709\u88ab\u9501\u5b9a\uff0c\u5219\u6211\u4eec\u4f7f\u7528\u4e00\u4e2aLua\u811a\u672c\u6765\u83b7\u53d6\u9501\u3002\u5728\u83b7\u53d6\u5230\u9501\u540e\uff0c\u6211\u4eec\u6267\u884c\u76f8\u5e94\u7684\u4efb\u52a1\u64cd\u4f5c\uff0c\u5e76\u5c06\u4efb\u52a1\u4eceSorted Set\u4e2d\u5220\u9664\uff0c\u6700\u540e\u91ca\u653e\u9501\u3002<\/p>\n
    \u603b\u7ed3<\/h2>\n
    \u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\uff0c\u5e76\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002\u901a\u8fc7\u4f7f\u7528Sorted Set\u3001expire\u547d\u4ee4\u548cLua\u811a\u672c\u7b49Redis\u529f\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2a\u9ad8\u53ef\u9760\u6027\u3001\u9ad8\u6548\u7387\u7684\u5206\u5e03\u5f0f\u5b9a\u65f6\u4efb\u52a1\u7cfb\u7edf\u3002\u5f53\u7136\uff0c\u4e0a\u8ff0\u4ee3\u7801\u8fd8\u6709\u5f85\u6539\u8fdb\u548c\u4f18\u5316\uff0c\u4ee5\u6ee1\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u548c\u573a\u666f\u3002<\/p>\n
    \n
    \n <\/dt>\n
    \n   \u5982\u4f55\u4f7f\u7528Docker\u8fdb\u884c\u5bb9\u5668\u7684\u66f4\u65b0\u548c\u7248\u672c\u7ba1\u7406\n <\/dd>\n<\/dl>\n
    \n
    \n <\/dt>\n
    \n   PHP\u5f00\u53d1\u4e2d\u5982\u4f55\u4f7f\u7528Memcache\u5b9e\u73b0\u9ad8\u6548\u7684\u6570\u636e\u7f13\u5b58\u548c\u67e5\u8be2\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
    \u5982\u4f55\u5229\u7528Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u5b9a\u65f6...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-202300","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202300","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202300"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202300\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}