{"id":121221,"date":"2026-11-02T10:24:43","date_gmt":"2026-11-02T02:24:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/121221.html"},"modified":"2026-11-02T10:24:43","modified_gmt":"2026-11-02T02:24:43","slug":"redis%e5%91%bd%e4%bb%a4%ef%bc%9abzpopmin","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/121221.html","title":{"rendered":"Redis\u547d\u4ee4\uff1aBZPOPMIN"},"content":{"rendered":"

Redis BZPOPMIN \u547d\u4ee4\u8be6\u7ec6\u6559\u7a0b<\/h2>\n

BZPOPMIN \u4ece\u591a\u4e2a\u6709\u5e8f\u96c6\u5408\u4e2d\u79fb\u9664\u5e76\u8fd4\u56de\u5206\u503c\u6700\u4f4e\u7684\u6210\u5458，\u82e5\u6240\u6709\u7ed9\u5b9a\u96c6\u5408\u90fd\u4e3a\u7a7a\u5219\u963b\u585e\u8fde\u63a5，\u76f4\u5230\u6709\u6570\u636e\u5199\u5165\u6216\u8d85\u65f6\u3002\u5b83\u4ece Redis 5.0.0 \u8d77\u63d0\u4f9b，\u590d\u6742\u5ea6\u4e3a O(log(N))，\u4e00\u6b21\u53ea\u5f39\u51fa\u4e00\u4e2a\u6210\u5458，\u8fd4\u56de\u4e09\u5143\u7ec4 [\u952e\u540d, \u6210\u5458, \u5206\u503c]\u3002\u5b83\u548c BZPOPMAX \u5b8c\u5168\u5bf9\u79f0（\u53ea\u5dee\u53d6\u503c\u65b9\u5411），\u8bed\u4e49\u4e0e BLPOP \u4e00\u81f4\u3001\u53ea\u662f\u6570\u636e\u7ed3\u6784\u4e0d\u540c，\u56e0\u6b64\u662f"\u5ef6\u8fdf\u4efb\u52a1\u5230\u671f\u5904\u7406""\u6700\u4f4e\u5206\u4f18\u5148\u6d88\u8d39"\u8fd9\u7c7b\u573a\u666f\u7684\u7ecf\u5178\u5de5\u5177\u3002Redis 7.0 \u5f15\u5165 BZMPOP \u540e，\u65b0\u4ee3\u7801\u66f4\u63a8\u8350 BZMPOP … MIN（\u652f\u6301 COUNT \u6279\u91cf\u5f39\u51fa），\u4f46 BZPOPMIN \u4ecd\u7136\u53ef\u7528\u3001\u672a\u88ab\u6807\u8bb0\u4e3a\u5f03\u7528\u3002<\/p>\n

\u8d44\u6599\u5408\u96c6：https:\/\/pan.quark.cn\/s\/10e98d308913\u3001https:\/\/pan.quark.cn\/s\/f56bc69c5338<\/p>\n

\u4e00\u3001\u6982\u89c8\u4e0e\u8bed\u6cd5<\/h3>\n

BZPOPMIN key [key …] timeout<\/p>\n\n\u9879\u76ee\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n\n\n
\u6570\u636e\u7c7b\u578b<\/td>\nSorted Set<\/td>\n<\/tr>\n
\u652f\u6301\u7248\u672c<\/td>\nRedis 5.0.0 \u8d77；timeout \u81ea 6.0.0 \u8d77\u6309 double \u89e3\u91ca（\u652f\u6301\u5c0f\u6570\u79d2）<\/td>\n<\/tr>\n
key<\/td>\n\u4e00\u4e2a\u6216\u591a\u4e2a\u6709\u5e8f\u96c6\u5408 Key，\u6309\u53c2\u6570\u987a\u5e8f\u68c0\u67e5<\/td>\n<\/tr>\n
timeout<\/td>\n\u6700\u5927\u963b\u585e\u79d2\u6570，0 \u8868\u793a\u6c38\u4e45\u963b\u585e<\/td>\n<\/tr>\n
\u8fd4\u56de\u503c<\/td>\n\u6210\u529f\u65f6 [key, member, score]；\u8d85\u65f6\u8fd4\u56de nil<\/td>\n<\/tr>\n
\u65f6\u95f4\u590d\u6742\u5ea6<\/td>\nO(log(N))，N \u4e3a\u6709\u5e8f\u96c6\u5408\u5143\u7d20\u6570\u91cf<\/td>\n<\/tr>\n
ACL<\/td>\n@write\u3001@sortedset\u3001@fast\u3001@blocking<\/td>\n<\/tr>\n
\u547d\u4ee4\u6807\u8bb0<\/td>\nwrite\u3001blocking\u3001fast<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5b98\u65b9\u8bf4\u660e：\u4ece\u9996\u4e2a\u975e\u7a7a\u7684\u6709\u5e8f\u96c6\u5408\u4e2d\u5f39\u51fa\u5206\u503c\u6700\u4f4e\u7684\u6210\u5458；\u5168\u90e8\u4e3a\u7a7a\u65f6\u963b\u585e，\u76f4\u5230\u6709\u6570\u636e\u5199\u5165\u6216 timeout \u5230\u671f，\u8d85\u65f6\u8fd4\u56de nil\u3002\u591a\u4e2a Key \u6309\u4f20\u5165\u987a\u5e8f\u4f9d\u6b21\u68c0\u67e5\u3002$TRAE_REF<\/p>\n

\u53c2\u6570\u987a\u5e8f\u662f Key \u5728\u524d\u3001timeout \u5728\u6700\u540e，\u4e0e BZMPOP（timeout \u5728\u6700\u524d）\u76f8\u53cd，\u624b\u5199\u547d\u4ee4\u65f6\u6700\u5bb9\u6613\u5728\u8fd9\u91cc\u51fa\u9519\u3002<\/p>\n

\u4e8c\u3001\u57fa\u7840\u793a\u4f8b<\/h3>\n

\u4ee5\u4e0b\u547d\u4ee4\u5728\u6d4b\u8bd5\u5b9e\u4f8b\u7684 redis-cli \u4e2d\u6267\u884c\u3002\u6587\u4e2d\u7ed3\u679c\u662f\u9884\u671f\u8bf4\u660e，\u672a\u5b9e\u9645\u8fde\u63a5 Redis \u8fd0\u884c\u3002<\/p>\n

DEL tutorial:{bzpopmin}:z1 tutorial:{bzpopmin}:z2
\nZADD tutorial:{bzpopmin}:z1 1 "a" 2 "b" 3 "c"
\nBZPOPMIN tutorial:{bzpopmin}:z1 tutorial:{bzpopmin}:z2 1
\nBZPOPMIN tutorial:{bzpopmin}:z1 tutorial:{bzpopmin}:z2 1
\nEXISTS tutorial:{bzpopmin}:z1<\/p>\n

\u9884\u671f\u7ed3\u679c：ZADD \u8fd4\u56de 3；\u7b2c\u4e00\u6761\u8fd4\u56de\u4e09\u5143\u7ec4 1) "tutorial:{bzpopmin}:z1"\u30012) "a"\u30013) "1"；\u7b2c\u4e8c\u6761\u8fd4\u56de z1\u3001b\u30012；EXISTS \u8fd4\u56de 1（\u6b64\u65f6\u8fd8\u5269 c）\u3002<\/p>\n

\u6709\u6570\u636e\u65f6\u547d\u4ee4\u7acb\u5373\u8fd4\u56de，\u793a\u4f8b\u91cc\u7684 timeout 1 \u53ea\u662f\u4e0a\u9650，\u5e76\u672a\u771f\u6b63\u7b49\u5f85\u3002<\/p>\n

\u963b\u585e\u8def\u5f84\u9700\u8981\u4e00\u4e2a\u7a7a\u96c6\u5408\u548c\u8f83\u77ed\u8d85\u65f6：<\/p>\n

DEL tutorial:{bzpopmin}:empty
\nBZPOPMIN tutorial:{bzpopmin}:empty 0.1<\/p>\n

\u9884\u671f\u7ed3\u679c：\u7b49\u5f85\u7ea6 0.1 \u79d2\u540e\u8fd4\u56de (nil)\u3002\u82e5 timeout \u5199 0，\u547d\u4ee4\u4f1a\u4e00\u76f4\u6302\u8d77，\u76f4\u5230\u5176\u4ed6\u5ba2\u6237\u7aef\u5411\u8be5 Key \u5199\u5165\u6570\u636e\u3002<\/p>\n

\u4e09\u3001\u8fd4\u56de\u503c\u7ed3\u6784<\/h3>\n\n\u60c5\u51b5RESP2RESP3<\/tr>\n\n\n\n
\u5f39\u51fa\u6210\u529f<\/td>\n\u6570\u7ec4 [key, member, score]<\/td>\n\u540c\u5de6<\/td>\n<\/tr>\n
\u8d85\u65f6\/\u96c6\u5408\u4e3a\u7a7a<\/td>\nNil<\/td>\nNull reply<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\u4f4d\u7f6e\u542b\u4e49\u7c7b\u578b<\/tr>\n\n\n\n\n
\u7b2c 1 \u9879<\/td>\n\u88ab\u5f39\u51fa\u6210\u5458\u6240\u5c5e\u7684 Key \u540d<\/td>\nbulk string<\/td>\n<\/tr>\n
\u7b2c 2 \u9879<\/td>\n\u88ab\u5f39\u51fa\u7684\u6210\u5458<\/td>\nbulk string<\/td>\n<\/tr>\n
\u7b2c 3 \u9879<\/td>\n\u8be5\u6210\u5458\u7684\u5206\u503c<\/td>\nbulk string（RESP2），\u5ba2\u6237\u7aef\u901a\u5e38\u89e3\u6790\u4e3a\u6d6e\u70b9\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8981\u70b9：<\/p>\n

    \n
  • \u6241\u5e73\u4e09\u5143\u7ec4，\u4e0d\u662f\u5d4c\u5957\u7ed3\u6784（BZMPOP \u8fd4\u56de\u7684\u662f [key, [[member, score], …]]）\u3002<\/li>\n
  • \u5206\u503c\u4ee5\u5b57\u7b26\u4e32\u8fd4\u56de，"1" \u4e0e "1.0" \u8868\u793a\u540c\u4e00\u4e2a\u6570，\u76f4\u63a5\u505a\u5b57\u7b26\u4e32\u6bd4\u8f83\u4f1a\u51fa\u9519\u3002<\/li>\n
  • \u4e00\u6b21\u53ea\u8fd4\u56de\u4e00\u4e2a\u6210\u5458，\u6ca1\u6709 COUNT \u53c2\u6570；\u9700\u8981\u6279\u91cf\u8bf7\u7528 BZMPOP … MIN COUNT n \u6216 ZPOPMIN key count\u3002<\/li>\n
  • \u7b2c\u4e00\u9879\u662f Key \u540d，\u591a\u961f\u5217\u573a\u666f\u636e\u6b64\u5206\u652f\u5904\u7406\u3002<\/li>\n<\/ul>\n

    \u56db\u3001timeout \u4e0e\u963b\u585e\u8bed\u4e49<\/h3>\n\n\u53d6\u503c\u884c\u4e3a<\/tr>\n\n\n\n\n
    0<\/td>\n\u6c38\u4e45\u963b\u585e，\u76f4\u5230\u6709\u6570\u636e\u6216\u8fde\u63a5\u65ad\u5f00<\/td>\n<\/tr>\n
    \u6b63\u5c0f\u6570（\u5982 0.1\u30012.5）<\/td>\n\u6700\u591a\u7b49\u5f85\u8be5\u79d2\u6570，\u5230\u671f\u8fd4\u56de nil<\/td>\n<\/tr>\n
    \u8d1f\u6570<\/td>\n\u62a5\u9519 ERR timeout is negative<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\u573a\u666f\u884c\u4e3a<\/tr>\n\n\n\n\n\n\n\n\n\n
    \u4efb\u4e00 Key \u975e\u7a7a<\/td>\n\u7acb\u5373\u8fd4\u56de，\u4e0d\u963b\u585e<\/td>\n<\/tr>\n
    \u5168\u90e8 Key \u4e3a\u7a7a<\/td>\n\u6302\u8d77\u5ba2\u6237\u7aef\u7b49\u5f85\u5199\u5165<\/td>\n<\/tr>\n
    \u7b49\u5f85\u671f\u95f4\u6709\u5199\u5165<\/td>\n\u7acb\u5373\u88ab\u5524\u9192<\/td>\n<\/tr>\n
    \u8d85\u65f6<\/td>\n\u8fd4\u56de nil<\/td>\n<\/tr>\n
    \u5728 MULTI\/EXEC \u4e2d<\/td>\n\u4e0d\u963b\u585e，\u7b49\u540c ZPOPMIN，\u65e0\u6570\u636e\u7acb\u5373\u8fd4\u56de nil<\/td>\n<\/tr>\n
    \u5728 Lua \u811a\u672c\u4e2d<\/td>\n\u4e0d\u963b\u585e<\/td>\n<\/tr>\n
    \u5728 Pipeline \u4e2d<\/td>\n\u963b\u585e\u6574\u4e2a\u7ba1\u9053\u540e\u7eed\u547d\u4ee4，\u5e94\u907f\u514d<\/td>\n<\/tr>\n
    \u53ea\u8bfb\u526f\u672c<\/td>\n\u62d2\u7edd\u6267\u884c（\u5199\u547d\u4ee4，\u62a5 READONLY）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u8d85\u65f6\u94fe\u8def\u8981\u5bf9\u9f50：Redis \u4fa7 timeout \u5efa\u8bae\u7565\u5c0f\u4e8e\u5ba2\u6237\u7aef socket \u8bfb\u8d85\u65f6（\u5982\u5ba2\u6237\u7aef 3 \u79d2\u3001Redis 2 \u79d2）\u3002\u5426\u5219\u5ba2\u6237\u7aef\u5148\u65ad\u5f00\u800c\u670d\u52a1\u7aef\u4ecd\u5728\u963b\u585e，\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u6c60\u91cc\u4f1a\u5806\u79ef"\u5e7d\u7075\u963b\u585e\u5ba2\u6237\u7aef"\u3002<\/p>\n

    \u963b\u585e\u4e0d\u70e7 CPU：\u5ba2\u6237\u7aef\u88ab\u6302\u8d77\u5728\u963b\u585e\u961f\u5217\u91cc，\u4e0d\u7a7a\u8f6c，\u4e5f\u4e0d\u4f1a\u5f71\u54cd\u5176\u4ed6\u5ba2\u6237\u7aef\u3002\u4f46\u5b83\u72ec\u5360\u4e00\u4e2a\u8fde\u63a5，\u6d88\u8d39\u8005\u6570\u91cf\u591a\u65f6\u8fde\u63a5\u6c60\u8981\u5355\u72ec\u89c4\u5212\u3002<\/p>\n

    FIFO \u5524\u9192：\u591a\u4e2a\u5ba2\u6237\u7aef\u963b\u585e\u5728\u540c\u4e00\u6279 Key \u4e0a，\u6309\u8fdb\u5165\u963b\u585e\u7684\u5148\u540e\u987a\u5e8f\u88ab\u5524\u9192\u3002<\/p>\n

    \u4e94\u3001\u540c\u5206\u6392\u5e8f\u4e0e"\u6700\u4f4e\u5206"\u7684\u5b9a\u4e49<\/h3>\n

    \u6709\u5e8f\u96c6\u5408\u7684\u6392\u5e8f\u89c4\u5219\u662f：\u5148\u6309\u5206\u503c\u5347\u5e8f，\u5206\u503c\u76f8\u540c\u65f6\u6309\u6210\u5458\u5b57\u8282\u5e8f\u5347\u5e8f\u3002\u56e0\u6b64"\u5206\u503c\u6700\u4f4e\u7684\u6210\u5458"\u5728\u5b58\u5728\u591a\u4e2a\u540c\u5206\u6210\u5458\u65f6，\u53d6\u7684\u662f\u5176\u4e2d\u5b57\u5178\u5e8f\u6700\u5c0f\u7684\u90a3\u4e2a\u3002<\/p>\n\n\u573a\u666f\u5f39\u51fa\u7684\u6210\u5458<\/tr>\n\n\n\n\n
    \u5206\u503c\u4e92\u4e0d\u76f8\u540c<\/td>\n\u5206\u503c\u6700\u5c0f\u7684\u90a3\u4e2a<\/td>\n<\/tr>\n
    \u5b58\u5728\u591a\u4e2a\u76f8\u540c\u6700\u4f4e\u5206<\/td>\n\u5176\u4e2d\u5b57\u5178\u5e8f\u6700\u5c0f\u7684\u6210\u5458\u4f18\u5148<\/td>\n<\/tr>\n
    \u5206\u503c\u4e3a -inf<\/td>\n\u6c38\u8fdc\u6700\u5148\u88ab\u5f39\u51fa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    DEL tutorial:{bzpopmin}:tie
    \nZADD tutorial:{bzpopmin}:tie 5 "b" 5 "a" 5 "c"
    \nBZPOPMIN tutorial:{bzpopmin}:tie 1
    \nBZPOPMIN tutorial:{bzpopmin}:tie 1<\/p>\n

    \u9884\u671f\u7ed3\u679c：\u7b2c\u4e00\u6761\u5f39\u51fa "a"（\u540c\u5206\u4e2d\u5b57\u5178\u5e8f\u6700\u5c0f），\u7b2c\u4e8c\u6761\u5f39\u51fa "b"，\u6700\u540e\u5269 "c"\u3002<\/p>\n

    \u8fd9\u610f\u5473\u7740\u76f8\u540c\u5206\u503c\u7684\u5f39\u51fa\u987a\u5e8f\u4e0e\u63d2\u5165\u987a\u5e8f\u65e0\u5173\u3002\u82e5\u4e1a\u52a1\u8981\u6c42"\u540c\u4f18\u5148\u7ea7\u5148\u8fdb\u5148\u51fa"，\u5fc5\u987b\u628a\u65f6\u95f4\u6233\u6216\u81ea\u589e\u5e8f\u53f7\u7f16\u5165\u5206\u503c（\u4f8b\u5982 \u6beb\u79d2\u65f6\u95f4\u6233 + \u5e8f\u53f7\/1000），\u4e0d\u80fd\u4f9d\u8d56\u63d2\u5165\u987a\u5e8f\u3002<\/p>\n

    \u516d\u3001\u591a Key \u7684\u68c0\u67e5\u987a\u5e8f<\/h3>\n

    Key \u6309\u53c2\u6570\u987a\u5e8f\u4f9d\u6b21\u68c0\u67e5，\u547d\u4e2d\u7684\u7b2c\u4e00\u4e2a\u975e\u7a7a\u96c6\u5408\u5c31\u662f\u6570\u636e\u6765\u6e90：<\/p>\n

    DEL tutorial:{bzpopmin}:k1 tutorial:{bzpopmin}:k2
    \nZADD tutorial:{bzpopmin}:k2 5 "x" 6 "y"
    \nBZPOPMIN tutorial:{bzpopmin}:k1 tutorial:{bzpopmin}:k2 1<\/p>\n

    \u9884\u671f\u7ed3\u679c：\u8fd4\u56de tutorial:{bzpopmin}:k2\u3001x\u30015\u3002k1 \u4e0d\u5b58\u5728（\u89c6\u4e3a\u7a7a\u96c6\u5408）\u88ab\u8df3\u8fc7\u3002<\/p>\n

    \u987a\u5e8f\u7279\u6027\u53ef\u7528\u6765\u8868\u8fbe\u4f18\u5148\u7ea7：\u9ad8\u4f18\u5148\u7ea7\u961f\u5217\u653e\u5728\u524d\u9762，\u4e00\u6b21\u8c03\u7528\u5373\u5b9e\u73b0"\u5148\u9ad8\u540e\u4f4e"\u7684\u6d88\u8d39\u3002\u6ce8\u610f\u6bcf\u6b21\u8c03\u7528\u90fd\u4ece\u7b2c\u4e00\u4e2a Key \u91cd\u65b0\u68c0\u67e5，\u8fd9\u6070\u597d\u7b26\u5408\u4f18\u5148\u7ea7\u8bed\u4e49\u2014\u2014\u53ea\u8981\u524d\u9762\u7684\u961f\u5217\u6709\u6570\u636e，\u540e\u9762\u7684\u961f\u5217\u5c31\u4e0d\u4f1a\u88ab\u6d88\u8d39\u3002<\/p>\n

    \u96c6\u7fa4\u9650\u5236：\u591a\u4e2a Key \u5fc5\u987b\u843d\u5728\u540c\u4e00\u54c8\u5e0c\u69fd，\u5426\u5219\u62a5 CROSSSLOT\u3002\u7528\u76f8\u540c\u54c8\u5e0c\u6807\u7b7e（\u5982 {delay}）\u53ef\u4fdd\u8bc1\u540c\u69fd，\u4ee3\u4ef7\u662f\u8fd9\u4e9b\u961f\u5217\u96c6\u4e2d\u5728\u4e00\u4e2a\u8282\u70b9\u3002<\/p>\n

    \u4e03\u3001\u4e0e\u76f8\u8fd1\u547d\u4ee4\u7684\u533a\u522b<\/h3>\n\n\u547d\u4ee4\u963b\u585e\u591a Key\u4e00\u6b21\u5f39\u51fa\u65b9\u5411\u8fd4\u56de\u7ed3\u6784\u7248\u672c<\/tr>\n\n\n\n\n\n\n\n
    BZPOPMIN<\/td>\n\u662f<\/td>\n\u662f<\/td>\n1 \u4e2a<\/td>\n\u6700\u4f4e\u5206<\/td>\n[key, member, score]<\/td>\n5.0.0<\/td>\n<\/tr>\n
    BZPOPMAX<\/td>\n\u662f<\/td>\n\u662f<\/td>\n1 \u4e2a<\/td>\n\u6700\u9ad8\u5206<\/td>\n[key, member, score]<\/td>\n5.0.0<\/td>\n<\/tr>\n
    ZPOPMIN<\/td>\n\u5426<\/td>\n\u5426<\/td>\n\u652f\u6301 COUNT<\/td>\n\u6700\u4f4e\u5206<\/td>\n\u6210\u5458\u3001\u5206\u503c\u4ea4\u66ff\u7684\u6570\u7ec4<\/td>\n5.0.0<\/td>\n<\/tr>\n
    ZMPOP<\/td>\n\u5426<\/td>\n\u662f<\/td>\n\u652f\u6301 COUNT<\/td>\nMIN\/MAX \u53ef\u9009<\/td>\n[key, [[member, score], …]]<\/td>\n7.0.0<\/td>\n<\/tr>\n
    BZMPOP<\/td>\n\u662f<\/td>\n\u662f<\/td>\n\u652f\u6301 COUNT<\/td>\nMIN\/MAX \u53ef\u9009<\/td>\n[key, [[member, score], …]]<\/td>\n7.0.0<\/td>\n<\/tr>\n
    BLPOP<\/td>\n\u662f<\/td>\n\u662f<\/td>\n\u5355\u5143\u7d20<\/td>\nList \u5de6\u7aef<\/td>\n[key, member]<\/td>\n2.0.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    DEL tutorial:{bzpopmin}:cmp
    \nZADD tutorial:{bzpopmin}:cmp 1 "p" 2 "q"
    \nBZPOPMIN tutorial:{bzpopmin}:cmp 1
    \nZPOPMIN tutorial:{bzpopmin}:cmp<\/p>\n

    \u9884\u671f\u7ed3\u679c：BZPOPMIN \u8fd4\u56de [key, "p", "1"]；ZPOPMIN \u8fd4\u56de "q"\u3001"2"（\u5355 Key \u64cd\u4f5c，\u4e0d\u542b Key \u540d，RESP2 \u4e0b\u6210\u5458\u4e0e\u5206\u503c\u5e73\u94fa）\u3002<\/p>\n

    \u9009\u62e9\u8981\u70b9：<\/p>\n

      \n
    • \u8981\u7b49\u6570\u636e\u3001\u6309\u6700\u4f4e\u5206\u4f18\u5148：BZPOPMIN（Redis 7.0+ \u4f18\u5148 BZMPOP … MIN）\u3002<\/li>\n
    • \u8981\u4e00\u6b21\u5f39\u591a\u4e2a：BZMPOP timeout numkeys key… MIN COUNT n\u3002<\/li>\n
    • \u4e0d\u9700\u8981\u963b\u585e：ZPOPMIN\/ZMPOP，\u4e0d\u5360\u8fde\u63a5\u3002<\/li>\n
    • \u53ea\u8981\u6309\u4f18\u5148\u7ea7\u6392\u5e8f\u3001\u7531\u5ba2\u6237\u7aef\u81ea\u884c\u8c03\u5ea6：\u76f4\u63a5\u7528 ZRANGE … LIMIT \u67e5\u770b，\u518d\u51b3\u5b9a\u662f\u5426 ZREM（\u975e\u539f\u5b50，\u5b58\u5728\u5e76\u53d1\u62a2\u5355\u98ce\u9669）\u3002<\/li>\n<\/ul>\n

      \u516b\u3001\u8fb9\u754c\u60c5\u51b5\u4e0e\u9519\u8bef\u5904\u7406<\/h3>\n\n\u573a\u666f\u884c\u4e3a<\/tr>\n\n\n\n\n\n\n\n\n\n
      \u672a\u4f20 Key \u6216\u672a\u4f20 timeout<\/td>\n\u62a5\u53c2\u6570\u6570\u91cf\u9519\u8bef（\u81f3\u5c11 3 \u4e2a\u53c2\u6570）<\/td>\n<\/tr>\n
      timeout \u4e3a\u8d1f\u6570<\/td>\n\u62a5 ERR timeout is negative<\/td>\n<\/tr>\n
      timeout \u975e\u6570\u5b57<\/td>\n\u62a5 ERR timeout is not a float or out of range<\/td>\n<\/tr>\n
      \u5168\u90e8 Key \u4e0d\u5b58\u5728<\/td>\n\u963b\u585e\u76f4\u5230\u8d85\u65f6，\u8fd4\u56de nil<\/td>\n<\/tr>\n
      \u4efb\u4e00 Key \u7c7b\u578b\u4e0d\u662f Sorted Set<\/td>\n\u62a5 WRONGTYPE<\/td>\n<\/tr>\n
      \u5f39\u51fa\u6700\u540e\u4e00\u4e2a\u6210\u5458<\/td>\nKey \u88ab\u5220\u9664<\/td>\n<\/tr>\n
      \u96c6\u7fa4\u4e2d Key \u4e0d\u540c\u69fd<\/td>\n\u62a5 CROSSSLOT<\/td>\n<\/tr>\n
      \u53ea\u8bfb\u526f\u672c\u6267\u884c<\/td>\n\u62a5 READONLY<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      BZPOPMIN tutorial:{bzpopmin}:z1 -1
      \nBZPOPMIN tutorial:{bzpopmin}:z1 abc
      \nSET tutorial:{bzpopmin}:str text
      \nBZPOPMIN tutorial:{bzpopmin}:str 0.1<\/p>\n

      \u9884\u671f\u7ed3\u679c：\u7b2c\u4e00\u6761\u56e0 timeout \u4e3a\u8d1f\u62a5 ERR timeout is negative；\u7b2c\u4e8c\u6761 timeout \u975e\u6570\u5b57，\u62a5 ERR timeout is not a float or out of range；\u7b2c\u4e09\u6761\u5bf9 String \u7c7b\u578b\u62a5 WRONGTYPE（\u7acb\u5373\u5931\u8d25，\u4e0d\u4f1a\u963b\u585e）\u3002<\/p>\n

      \u628a timeout \u5199\u5728 Key \u4e4b\u524d（BZPOPMIN 1 zset）\u4f1a\u88ab\u89e3\u6790\u6210"Key \u540d\u4e3a 1\u3001timeout \u4e3a zset"，\u4ece\u800c\u62a5 timeout \u975e\u6570\u5b57，\u5bb9\u6613\u8bef\u5224\u4e3a\u8bed\u6cd5\u95ee\u9898\u3002<\/p>\n

      \u4e5d\u3001\u5ba2\u6237\u7aef\u793a\u4f8b<\/h3>\n

      \u524d\u63d0\u4e3a\u5df2\u5b89\u88c5 redis-py \u5e76\u51c6\u5907\u597d\u672c\u5730\u6d4b\u8bd5\u5b9e\u4f8b\u3002redis-py \u7684\u7b7e\u540d\u662f bzpopmin(keys, timeout=0)，\u8fd4\u56de (key, member, score) \u5143\u7ec4，\u8d85\u65f6\u8fd4\u56de None\u3002<\/p>\n

      import<\/span> redis<\/p>\n

      r =<\/span> redis.<\/span>Redis(<\/span>host=<\/span>"localhost"<\/span>,<\/span> port=<\/span>6379<\/span>,<\/span> decode_responses=<\/span>True<\/span>)<\/span>
      \nk1 =<\/span> "tutorial:{bzpopmin}:py1"<\/span>
      \nk2 =<\/span> "tutorial:{bzpopmin}:py2"<\/span>
      \ntry<\/span>:<\/span>
      \n r.<\/span>delete(<\/span>k1,<\/span> k2)<\/span>
      \n r.<\/span>zadd(<\/span>k1,<\/span> {<\/span>"a"<\/span>:<\/span> 1<\/span>,<\/span> "b"<\/span>:<\/span> 2<\/span>,<\/span> "c"<\/span>:<\/span> 3<\/span>}<\/span>)<\/span><\/p>\n

      print<\/span>(<\/span>r.<\/span>bzpopmin(<\/span>[<\/span>k1,<\/span> k2]<\/span>,<\/span> timeout=<\/span>1<\/span>)<\/span>)<\/span> # (k1, 'a', 1.0)，\u7acb\u5373\u8fd4\u56de<\/span>
      \n print<\/span>(<\/span>r.<\/span>bzpopmin(<\/span>[<\/span>k1,<\/span> k2]<\/span>,<\/span> timeout=<\/span>1<\/span>)<\/span>)<\/span> # (k1, 'b', 2.0)<\/span>
      \n print<\/span>(<\/span>r.<\/span>bzpopmin(<\/span>[<\/span>k1,<\/span> k2]<\/span>,<\/span> timeout=<\/span>1<\/span>)<\/span>)<\/span> # (k1, 'c', 3.0)，\u96c6\u5408\u88ab\u5f39\u7a7a\u540e Key \u5220\u9664<\/span>
      \n print<\/span>(<\/span>r.<\/span>bzpopmin(<\/span>[<\/span>k1]<\/span>,<\/span> timeout=<\/span>0.2<\/span>)<\/span>)<\/span> # None，\u7b49\u5f85 0.2 \u79d2\u540e\u8d85\u65f6<\/span>
      \nfinally<\/span>:<\/span>
      \n r.<\/span>delete(<\/span>k1,<\/span> k2)<\/span>
      \n r.<\/span>close(<\/span>)<\/span><\/p>\n

      Java（Jedis）\u793a\u4f8b，bzpopmin(double timeout, keys…) \u5728 Jedis 5 \u4e2d\u8fd4\u56de KeyValue<String, Tuple>（4.x \u4e3a KeyedZSetElement，\u4ee5\u6240\u7528\u7248\u672c\u4e3a\u51c6）：<\/p>\n

      try<\/span> (<\/span>Jedis<\/span> jedis =<\/span> new<\/span> Jedis<\/span>(<\/span>"localhost"<\/span>,<\/span> 6379<\/span>)<\/span>)<\/span> {<\/span>
      \n String<\/span> k1 =<\/span> "tutorial:{bzpopmin}:java1"<\/span>;<\/span>
      \n String<\/span> k2 =<\/span> "tutorial:{bzpopmin}:java2"<\/span>;<\/span>
      \n jedis.<\/span>del<\/span>(<\/span>k1,<\/span> k2)<\/span>;<\/span>
      \n jedis.<\/span>zadd<\/span>(<\/span>k1,<\/span> 1.0<\/span>,<\/span> "a"<\/span>)<\/span>;<\/span>
      \n jedis.<\/span>zadd<\/span>(<\/span>k1,<\/span> 2.0<\/span>,<\/span> "b"<\/span>)<\/span>;<\/span><\/p>\n

      System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>jedis.<\/span>bzpopmin<\/span>(<\/span>1.0<\/span>,<\/span> k1,<\/span> k2)<\/span>)<\/span>;<\/span> \/\/ KeyValue{key=k1, value=[a, 1.0]}<\/span>
      \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>jedis.<\/span>bzpopmin<\/span>(<\/span>1.0<\/span>,<\/span> k1,<\/span> k2)<\/span>)<\/span>;<\/span> \/\/ KeyValue{key=k1, value=[b, 2.0]}<\/span>
      \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>jedis.<\/span>bzpopmin<\/span>(<\/span>0.2<\/span>,<\/span> k1)<\/span>)<\/span>;<\/span> \/\/ null，\u8d85\u65f6<\/span>
      \n jedis.<\/span>del<\/span>(<\/span>k1,<\/span> k2)<\/span>;<\/span>
      \n}<\/span><\/p>\n

      \u6ce8\u610f\u53c2\u6570\u987a\u5e8f\u5dee\u5f02：Jedis \u7684 bzpopmin(timeout, keys…) \u628a timeout \u653e\u6700\u524d，\u800c Redis \u534f\u8bae\u91cc timeout \u5728\u6700\u540e；redis-py \u7684 bzpopmin(keys, timeout) \u4e0e\u534f\u8bae\u4e00\u81f4\u3002<\/p>\n

      \u5341\u3001\u539f\u5b50\u6027\u4e0e\u5e76\u53d1<\/h3>\n

      \u5355\u547d\u4ee4\u539f\u5b50：\u9009\u62e9\u96c6\u5408\u3001\u5f39\u51fa\u6210\u5458\u3001\u5fc5\u8981\u65f6\u5220\u9664\u7a7a\u96c6\u5408\u90fd\u5728\u4e00\u6761\u547d\u4ee4\u5185\u5b8c\u6210\u3002\u591a\u4e2a\u6d88\u8d39\u8005\u5e76\u53d1\u963b\u585e\u65f6，\u540c\u4e00\u4e2a\u6210\u5458\u53ea\u4f1a\u88ab\u4e00\u4e2a\u5ba2\u6237\u7aef\u62ff\u5230\u3002<\/p>\n

      \u963b\u585e\u4e0d\u4e22\u6570\u636e：\u6210\u5458\u5728\u5f39\u51fa\u65f6\u5373\u5199\u5165\u590d\u5236\u6d41，\u5ba2\u6237\u7aef\u62ff\u5230\u54cd\u5e94\u524d\u65ad\u7ebf\u4e5f\u4e0d\u4f1a\u56de\u6eda\u3002\u5bf9"\u7edd\u4e0d\u80fd\u4e22"\u7684\u4efb\u52a1\u961f\u5217，\u9700\u8981 ACK \u673a\u5236（\u5f39\u51fa\u540e\u5199\u5165 processing \u96c6\u5408，\u5904\u7406\u5b8c\u518d\u5220\u9664）\u3002<\/p>\n

      FIFO \u5524\u9192：\u591a\u4e2a\u5ba2\u6237\u7aef\u963b\u585e\u5728\u540c\u4e00\u6279 Key \u4e0a，\u6309\u963b\u585e\u987a\u5e8f\u4f9d\u6b21\u88ab\u5524\u9192\u3002<\/p>\n

      \u4e8b\u52a1\u4e0e\u811a\u672c\u5185\u9000\u5316\u4e3a\u975e\u963b\u585e：\u5728 MULTI\/EXEC \u6216 Lua \u4e2d\u4e0d\u963b\u585e，\u7a7a\u96c6\u5408\u7acb\u5373\u8fd4\u56de nil，\u4e0d\u80fd\u9760\u5b83\u5b9e\u73b0"\u7b49\u6709\u6570\u636e\u518d\u5904\u7406"\u3002<\/p>\n

      \u4e0e ZADD \u5e76\u53d1：\u5f39\u51fa\u4e0e\u5199\u5165\u4e0d\u4f1a\u4ea4\u9519\u3002\u6d88\u8d39\u8005\u963b\u585e\u65f6，\u751f\u4ea7\u8005\u4e00\u6b21 ZADD \u591a\u4e2a\u6210\u5458，\u591a\u6d88\u8d39\u8005\u4f1a\u6309\u539f\u5b50\u6027\u4f9d\u6b21\u62ff\u5230\u4e0d\u540c\u6210\u5458，\u4e0d\u4f1a\u91cd\u590d\u6d88\u8d39\u3002<\/p>\n

      \u5341\u4e00\u3001\u6027\u80fd\u4e0e\u4f7f\u7528\u6ce8\u610f\u4e8b\u9879<\/h3>\n

      O(log(N))：\u4ece\u8df3\u8868\u5934\u90e8\u53d6\u5143\u7d20\u5e76\u5220\u4e00\u4e2a\u8282\u70b9，\u4e0e\u96c6\u5408\u89c4\u6a21\u6210\u5bf9\u6570\u5173\u7cfb，\u975e\u5e38\u8f7b\u91cf\u3002<\/p>\n

      \u963b\u585e\u5360\u8fde\u63a5\u4e0d\u5360 CPU：\u8fde\u63a5\u6c60\u9700\u6309\u6d88\u8d39\u8005\u6570\u91cf\u9884\u7559，\u5c24\u5176\u662f"\u6bcf\u8bf7\u6c42\u4e00\u4e2a\u963b\u585e\u6d88\u8d39\u8005"\u7684\u67b6\u6784\u5bb9\u6613\u6253\u6ee1\u8fde\u63a5\u3002<\/p>\n

      timeout 0 \u662f\u8fd0\u7ef4\u9677\u9631：\u6c38\u4e45\u963b\u585e\u7684\u6d88\u8d39\u8005\u4e0b\u7ebf\u540e\u53ef\u80fd\u957f\u671f\u6302\u7740，CLIENT LIST \u4e2d\u8868\u73b0\u4e3a cmd=bzpopmin \u4e14 b=1\u3002\u751f\u4ea7\u5efa\u8bae\u6709\u9650\u8d85\u65f6 + \u5916\u5c42\u5faa\u73af\u3002<\/p>\n

      \u4e0d\u8981\u653e\u8fdb\u957f Pipeline：\u963b\u585e\u4f1a\u8ba9\u540e\u7eed\u547d\u4ee4\u4e00\u8d77\u7b49\u5f85，Pipeline \u7684\u541e\u5410\u4f18\u52bf\u6d88\u5931，\u8fd8\u6613\u89e6\u53d1\u5ba2\u6237\u7aef\u8d85\u65f6\u3002<\/p>\n

      \u5355\u6761\u5f39\u51fa\u610f\u5473\u7740\u9ad8\u5f80\u8fd4：\u6279\u91cf\u6d88\u8d39\u6539\u7528 BZMPOP … MIN COUNT n，\u6216\u6d88\u8d39\u8005\u5185\u90e8\u7528 ZPOPMIN key count\u3002<\/p>\n

      \u76d1\u63a7 blocked_clients：\u7a81\u589e\u901a\u5e38\u8bf4\u660e\u751f\u4ea7\u7aef\u505c\u6b62\u5199\u5165\u3001\u6d88\u8d39\u8005\u8fc7\u591a\u6216 timeout \u8bef\u8bbe\u4e3a 0\u3002<\/p>\n

      \u540c\u5206\u987a\u5e8f\u4f9d\u8d56\u6210\u5458\u540d：\u4e25\u683c\u8981\u6c42 FIFO \u65f6\u628a\u65f6\u95f4\u6233\/\u5e8f\u53f7\u7f16\u5165\u5206\u503c\u3002<\/p>\n

      \u5341\u4e8c\u3001\u5178\u578b\u4e1a\u52a1\u573a\u666f<\/h3>\n

      \u5ef6\u8fdf\u4efb\u52a1\u961f\u5217：\u628a"\u6267\u884c\u65f6\u95f4\u6233"\u4f5c\u4e3a\u5206\u503c\u5199\u5165，\u6d88\u8d39\u8005\u7528 BZPOPMIN \u963b\u585e\u7b49\u5f85\u2014\u2014\u4f46\u8981\u6ce8\u610f\u5b83\u662f"\u5206\u503c\u6700\u5c0f\u7684\u5148\u51fa"，\u4e0d\u4f1a\u81ea\u52a8\u7b49\u5f85\u5230\u6267\u884c\u65f6\u95f4，\u5fc5\u987b\u5728\u53d6\u5230\u4efb\u52a1\u540e\u6bd4\u8f83\u5f53\u524d\u65f6\u95f4，\u672a\u5230\u671f\u5219\u91cd\u65b0 ZADD \u56de\u53bb（\u6216\u7528 ZADD GT \u4fdd\u7559\u8f83\u5927\u5206\u503c）\u3002\u8fd9\u662f\u8be5\u6a21\u5f0f\u6700\u5bb9\u6613\u88ab\u5ffd\u7565\u7684\u6b63\u786e\u6027\u7ec6\u8282\u3002<\/p>\n

      \u8d85\u65f6\u8ba2\u5355\/\u4f1a\u8bdd\u56de\u6536：\u8fc7\u671f\u65f6\u95f4\u4f5c\u4e3a\u5206\u503c，\u5b9a\u671f BZPOPMIN \u53d6\u51fa\u5df2\u5230\u671f\u9879\u5904\u7406\u3002<\/p>\n

      \u6700\u4f4e\u4ef7\u4f18\u5148\u64ae\u5408：\u5356\u76d8\u6309\u6700\u4f4e\u552e\u4ef7\u5b58\u5206\u503c，\u4e70\u65b9\u7528 BZPOPMIN \u963b\u585e\u53d6\u6700\u4f18\u5356\u4ef7\u3002<\/p>\n

      \u964d\u7ea7\u6dd8\u6c70：\u5206\u6570\u8d8a\u4f4e\u4f18\u5148\u7ea7\u8d8a\u4f4e\u7684\u7f13\u5b58\u9879，\u6309\u6700\u4f4e\u5206\u6279\u91cf\u6dd8\u6c70（\u914d\u5408 BZMPOP … MIN COUNT n）\u3002<\/p>\n

      \u5b9a\u65f6\u8f6e\u8be2\u8c03\u5ea6：\u591a\u4e2a\u961f\u5217\u6309\u53c2\u6570\u987a\u5e8f\u8868\u8fbe\u4f18\u5148\u7ea7，\u6700\u4f4e\u5206\u4ee3\u8868\u6700\u7d27\u6025\u4efb\u52a1\u3002<\/p>\n

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      Redis BZPOPMIN \u547d\u4ee4\u8be6\u7ec6\u6559\u7a0b
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