{"id":201583,"date":"2025-05-10T12:14:26","date_gmt":"2025-05-10T04:14:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201583\/"},"modified":"2025-05-10T12:14:26","modified_gmt":"2025-05-10T04:14:26","slug":"%e8%a7%a3%e5%86%b3redis%e6%95%b0%e6%8d%ae%e5%80%be%e6%96%9c%e3%80%81%e7%83%ad%e7%82%b9%e7%ad%89%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201583\/","title":{"rendered":"\u89e3\u51b3Redis\u6570\u636e\u503e\u659c\u3001\u70ed\u70b9\u7b49\u95ee\u9898"},"content":{"rendered":"

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

\u89e3\u51b3Redis\u6570\u636e\u503e\u659c\u3001\u70ed\u70b9\u7b49\u95ee\u9898<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u89e3\u51b3Redis\u6570\u636e\u503e\u659c\u3001\u70ed\u70b9\u7b49\u95ee\u9898\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230redis\u6570\u636e\u503e\u659c\u3001\u70ed\u70b9<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

Redis \u4f5c\u4e3a\u4e00\u95e8\u4e3b\u6d41\u6280\u672f\uff0c\u5e94\u7528\u573a\u666f\u975e\u5e38\u591a\uff0c\u5f88\u591a\u5927\u4e2d\u5c0f\u5382\u9762\u8bd5\u90fd\u5217\u4e3a\u91cd\u70b9\u8003\u5bdf\u5185\u5bb9<\/p>\n

\u524d\u51e0\u5929\u6709\u661f\u7403\u5c0f\u4f19\u4f34\u5b66\u4e60\u65f6\uff0c\u9047\u5230\u4e0b\u9762\u51e0\u4e2a\u95ee\u9898\uff0c\u6765\u54a8\u8be2 Tom\u54e5<\/p>\n

\u8003\u8651\u5230\u8fd9\u4e9b\u95ee\u9898\u6bd4\u8f83\u9ad8\u9891\uff0c\u5de5\u4f5c\u4e2d\u7ecf\u5e38\u4f1a\u9047\u5230\uff0c\u8fd9\u91cc\u5199\u7bc7\u6587\u7ae0\u7cfb\u7edf\u8bb2\u89e3\u4e0b<\/p>\n

 \u95ee\u9898\u63cf\u8ff0\uff1a<\/p>\n

\n

1.\u5982\u679credis\u96c6\u7fa4\u51fa\u73b0\u6570\u636e\u503e\u659c\uff0c\u6570\u636e\u5206\u914d\u4e0d\u5747\uff0c\u8be5\u5982\u4f55\u89e3\u51b3\uff1f<\/p>\n

2.\u5904\u7406hotKey\u65f6\uff0c\u4e3akey\u521b\u5efa\u591a\u4e2a\u526f\u672c\uff0c\u5982k-1\uff0ck-2\u2026\uff0c \u5982\u4f55\u8ba9\u8fd9\u4e9b\u526f\u672c\u80fd\u5747\u5300\u5199\u5165\uff1f\u5982\u4f55\u5747\u5300\u8bbf\u95ee\uff1f<\/p>\n

3.redis\u4f7f\u7528hash slot\u6765\u7ef4\u62a4\u96c6\u7fa4\u3002\u4e0e\u4e00\u81f4\u6027\u54c8\u5e0c\u7c7b\u4f3c\uff0c\u90fd\u53ef\u4ee5\u907f\u514d\u5168\u91cf\u8fc1\u79fb\u3002\u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u4f7f\u7528\u4e00\u81f4\u6027hash\uff1f<\/p>\n<\/blockquote>\n

\n

\u5206\u5e03\u5f0f\u7f13\u5b58\u4f5c\u4e3a\u6027\u80fd\u52a0\u901f\u5668\uff0c\u5728\u7cfb\u7edf\u4f18\u5316\u4e2d\u627f\u62c5\u7740\u975e\u5e38\u91cd\u8981\u7684\u89d2\u8272\u3002\u76f8\u6bd4\u672c\u5730\u7f13\u5b58\uff0c\u867d\u7136\u589e\u52a0\u4e86\u4e00\u6b21\u7f51\u7edc\u4f20\u8f93\uff0c\u5927\u7ea6\u5360\u7528\u4e0d\u5230 1 \u6beb\u79d2\u5916\uff0c\u4f46\u662f\u5374\u6709\u96c6\u4e2d\u5316\u7ba1\u7406\u7684\u4f18\u52bf\uff0c\u5e76\u652f\u6301\u975e\u5e38\u5927\u7684\u5b58\u50a8\u5bb9\u91cf\u3002<\/p>\n<\/blockquote>\n

\n

\u5206\u5e03\u5f0f\u7f13\u5b58\u9886\u57df\uff0c\u76ee\u524d\u5e94\u7528\u6bd4\u8f83\u5e7f\u6cdb\u7684\u8981\u6570 Redis \u4e86\uff0c\u8be5\u6846\u67b6\u662f\u7eaf\u5185\u5b58\u50a8\u5b58\uff0c\u5355\u7ebf\u7a0b\u6267\u884c\u547d\u4ee4\uff0c\u62e5\u6709\u4e30\u5bcc\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784\uff0c\u652f\u6301\u591a\u79cd\u7ef4\u5ea6\u7684\u6570\u636e\u5b58\u50a8\u548c\u67e5\u627e\u3002<\/p>\n

\u5f53\u7136\uff0c\u6570\u636e\u91cf\u4e00\u5927\uff0c\u5404\u79cd\u95ee\u9898\u5c31\u51fa\u73b0\u4e86\uff0c\u6bd4\u5982\uff1a\u6570\u636e\u503e\u659c\u3001\u6570\u636e\u70ed\u70b9\u7b49<\/p>\n<\/blockquote>\n

 <\/strong>\u4ec0\u4e48\u662f\u6570\u636e\u503e\u659c\uff1f<\/h2>\n
\n

 \u5355\u53f0\u673a\u5668\u7684\u786c\u4ef6\u914d\u7f6e\u6709\u4e0a\u9650\u5236\u7ea6\uff0c\u4e00\u822c\u6211\u4eec\u4f1a\u91c7\u7528\u5206\u5e03\u5f0f\u67b6\u6784\u5c06\u591a\u53f0\u673a\u5668\u7ec4\u6210\u4e00\u4e2a\u96c6\u7fa4\uff0c\u4e0b\u56fe\u7684\u96c6\u7fa4\u5c31\u662f\u7531\u4e09\u53f0Redis\u5355\u673a\u7ec4\u6210\u3002\u5ba2\u6237\u7aef\u901a\u8fc7\u4e00\u5b9a\u7684\u8def\u7531\u7b56\u7565\uff0c\u5c06\u8bfb\u5199\u8bf7\u6c42\u8f6c\u53d1\u5230\u5177\u4f53\u7684\u5b9e\u4f8b\u4e0a\u3002<\/p>\n<\/blockquote>\n

\n

\u7531\u4e8e\u4e1a\u52a1\u6570\u636e\u7279\u6b8a\u6027\uff0c\u6309\u7167\u6307\u5b9a\u7684\u5206\u7247\u89c4\u5219\uff0c\u53ef\u80fd\u5bfc\u81f4\u4e0d\u540c\u7684\u5b9e\u4f8b\u4e0a\u6570\u636e\u5206\u5e03\u4e0d\u5747\u5300\uff0c\u5927\u91cf\u7684\u6570\u636e\u96c6\u4e2d\u5230\u4e86\u4e00\u53f0\u6216\u8005\u51e0\u53f0\u673a\u5668\u8282\u70b9\u4e0a\u8ba1\u7b97\uff0c\u4ece\u800c\u5bfc\u81f4\u8fd9\u4e9b\u8282\u70b9\u8d1f\u8f7d\u591a\u5927\uff0c\u800c\u5176\u4ed6\u8282\u70b9\u5904\u4e8e\u7a7a\u95f2\u7b49\u5f85\u4e2d\uff0c\u5bfc\u81f4\u6700\u7ec8\u6574\u4f53\u6548\u7387\u4f4e\u4e0b\u3002 <\/p>\n<\/blockquote>\n

 \u6570\u636e\u503e\u659c\u6709\u54ea\u4e9b\u539f\u56e0\u5462\uff1f<\/h2>\n

1\u3001\u5b58\u5728\u5927key<\/h3>\n

\u6bd4\u5982\u5b58\u50a8\u4e00\u4e2a\u6216\u591a\u4e2a String \u7c7b\u578b\u7684 bigKey \u6570\u636e\uff0c\u5185\u5b58\u5360\u7528\u5f88\u5927\u3002<\/p>\n

 Tom\u54e5\u4e4b\u524d\u6392\u67e5\u8fc7\u8fd9\u79cd\u95ee\u9898\uff0c\u6709\u540c\u4e8b\u5f00\u53d1\u65f6\u4e3a\u4e86\u7701\u4e8b\uff0c\u91c7\u7528JSON\u683c\u5f0f\uff0c\u5c06\u591a\u4e2a\u4e1a\u52a1\u6570\u636e\u5408\u5e76\u5230\u4e00\u4e2a value\uff0c\u53ea\u5173\u8054\u4e00\u4e2akey\uff0c\u5bfc\u81f4\u4e86\u8fd9\u4e2a\u952e\u503c\u5bf9\u5bb9\u91cf\u8fbe\u5230\u4e86\u51e0\u767eM\u3002<\/p>\n

\u9891\u7e41\u7684\u5927key\u8bfb\u5199\uff0c\u5185\u5b58\u8d44\u6e90\u6d88\u8017\u6bd4\u8f83\u91cd\uff0c\u540c\u65f6\u7ed9\u7f51\u7edc\u4f20\u8f93\u5e26\u4e86\u6781\u5927\u7684\u538b\u529b\uff0c\u8fdb\u800c\u5bfc\u81f4\u8bf7\u6c42\u54cd\u5e94\u53d8\u6162\uff0c\u5f15\u53d1\u96ea\u5d29\u6548\u5e94\uff0c\u6700\u540e\u7cfb\u7edf\u5404\u79cd\u8d85\u65f6\u62a5\u8b66\u3002<\/p>\n

\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n

\u529e\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u91c7\u7528\u5316\u6574\u4e3a\u96f6<\/code>\u7684\u7b56\u7565\uff0c\u5c06\u4e00\u4e2abigKey\u62c6\u5206\u4e3a\u591a\u4e2a\u5c0fkey\uff0c\u72ec\u7acb\u7ef4\u62a4\uff0c\u6210\u672c\u4f1a\u964d\u4f4e\u5f88\u591a\u3002\u5f53\u7136\u8fd9\u4e2a\u62c6\u4e5f\u8bb2\u7a76\u4e9b\u539f\u5219\uff0c\u65e2\u8981\u8003\u8651\u4e1a\u52a1\u573a\u666f\u4e5f\u8981\u8003\u8651\u8bbf\u95ee\u573a\u666f\uff0c\u5c06\u5173\u8054\u7d27\u5bc6\u7684\u653e\u5230\u4e00\u8d77\u3002<\/p>\n

\u6bd4\u5982\uff1a\u6709\u4e2aRPC\u63a5\u53e3\u5185\u90e8\u5bf9 Redis \u6709\u4f9d\u8d56\uff0c\u4e4b\u524d\u8bbf\u95ee\u4e00\u6b21\u5c31\u53ef\u4ee5\u62ff\u5230\u5168\u90e8\u6570\u636e\uff0c\u62c6\u5206\u5c06\u8981\u63a7\u5236\u5355\u503c\u7684\u5927\u5c0f\uff0c\u4e5f\u8981\u63a7\u5236\u8bbf\u95ee\u7684\u6b21\u6570\uff0c\u6bd5\u7adf\u8c03\u7528\u6b21\u6570\u589e\u591a\u4e86\uff0c\u4f1a\u62c9\u5927\u6574\u4f53\u7684\u63a5\u53e3\u54cd\u5e94\u65f6\u95f4\u3002 <\/p>\n

2\u3001HashTag \u4f7f\u7528\u4e0d\u5f53 <\/h3>\n
\n

Redis \u91c7\u7528\u5355\u7ebf\u7a0b\u6267\u884c\u547d\u4ee4\uff0c\u4ece\u800c\u4fdd\u8bc1\u4e86\u539f\u5b50\u6027\u3002\u5f53\u91c7\u7528\u96c6\u7fa4\u90e8\u7f72\u540e\uff0c\u4e3a\u4e86\u89e3\u51b3mset\u3001lua \u811a\u672c\u7b49\u5bf9\u591akey \u6279\u91cf\u64cd\u4f5c\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u4e0d\u540c\u7684 key \u80fd\u8def\u7531\u5230\u540c\u4e00\u4e2a Redis \u5b9e\u4f8b\u4e0a\uff0c\u5f15\u5165\u4e86 HashTag \u673a\u5236\u3002 <\/p>\n<\/blockquote>\n

\n

\u7528\u6cd5\u4e5f\u5f88\u7b80\u5355\uff0c\u4f7f\u7528{}<\/code>\u5927\u62ec\u53f7\uff0c\u6307\u5b9akey\u53ea\u8ba1\u7b97\u5927\u62ec\u53f7\u5185\u5b57\u7b26\u4e32\u7684\u54c8\u5e0c\uff0c\u4ece\u800c\u5c06\u4e0d\u540ckey\u7684\u5065\u503c\u5bf9\u63d2\u5165\u5230\u540c\u4e00\u4e2a\u54c8\u5e0c\u69fd\u3002 <\/p>\n<\/blockquote>\n

\u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/strong> <\/p>\n

192.168.0.1:6380> CLUSTER KEYSLOT testtag\n(integer) 764\n192.168.0.1:6380> CLUSTER KEYSLOT {testtag}\n(integer) 764\n192.168.0.1:6380> CLUSTER KEYSLOT mykey1{testtag}\n(integer) 764\n192.168.0.1:6380> CLUSTER KEYSLOT mykey2{testtag}\n(integer) 764\n<\/pre>\n
\n
 check \u4e0b\u4e1a\u52a1\u4ee3\u7801\uff0c\u6709\u6ca1\u6709\u5f15\u5165HashTag\uff0c\u5c06\u592a\u591a\u7684key\u8def\u7531\u5230\u4e86\u4e00\u4e2a\u5b9e\u4f8b\u3002\u7ed3\u5408\u5177\u4f53\u573a\u666f\uff0c\u8003\u8651\u5982\u4f55\u505a\u4e0b\u62c6\u5206\u3002<\/p>\n<\/blockquote>\n
\n
\u5c31\u50cf RocketMQ \u4e00\u6837\uff0c\u5f88\u591a\u65f6\u5019\u53ea\u8981\u80fd\u4fdd\u8bc1\u5206\u533a\u6709\u5e8f\uff0c\u5c31\u53ef\u4ee5\u6ee1\u8db3\u6211\u4eec\u7684\u4e1a\u52a1\u9700\u6c42\u3002\u5177\u4f53\u5b9e\u6218\u4e2d\uff0c\u8981\u627e\u5230\u8fd9\u4e2a\u5e73\u8861\u70b9\uff0c\u800c\u4e0d\u662f\u4e3a\u4e86\u89e3\u51b3\u95ee\u9898\u800c\u89e3\u51b3\u95ee\u9898\u3002 <\/p>\n<\/blockquote>\n
3\u3001slot \u69fd\u4f4d\u5206\u914d\u4e0d\u5747 <\/h3>\n
\n
\u5982\u679c\u91c7\u7528 Redis Cluster \u7684\u90e8\u7f72\u65b9\u5f0f\uff0c\u96c6\u7fa4\u4e2d\u7684\u6570\u636e\u5e93\u88ab\u5206\u4e3a16384\u4e2a\u69fd\uff08slot\uff09\uff0c\u6570\u636e\u5e93\u4e2d\u7684\u6bcf\u4e2a\u5065\u90fd\u5c5e\u4e8e\u8fd916384\u4e2a\u69fd\u7684\u5176\u4e2d\u4e00\u4e2a\uff0c\u96c6\u7fa4\u4e2d\u7684\u6bcf\u4e2a\u8282\u70b9\u53ef\u4ee5\u5904\u7406\u76840\u4e2a\u6216\u6700\u591a16384\u4e2a\u69fd\u3002 <\/p>\n<\/blockquote>\n
\n
 \u4f60\u53ef\u4ee5\u624b\u52a8\u505a\u8fc1\u79fb\uff0c\u5c06\u4e00\u4e2a\u6bd4\u8f83\u5927\u7684 slot \u8fc1\u79fb\u5230\u7a0d\u5fae\u7a7a\u95f2\u7684\u673a\u5668\u4e0a\uff0c\u4fdd\u8bc1\u5b58\u50a8\u548c\u8bbf\u95ee\u7684\u5747\u5300\u6027\u3002<\/p>\n<\/blockquote>\n
\u4ec0\u4e48\u662f\u7f13\u5b58\u70ed\u70b9\uff1f<\/strong> <\/p>\n
\n
\u7f13\u5b58\u70ed\u70b9\u662f\u6307\u5927\u90e8\u5206\u751a\u81f3\u6240\u6709\u7684\u4e1a\u52a1\u8bf7\u6c42\u90fd\u547d\u4e2d\u540c\u4e00\u4efd\u7f13\u5b58\u6570\u636e\uff0c\u7ed9\u7f13\u5b58\u670d\u52a1\u5668\u5e26\u6765\u4e86\u5de8\u5927\u538b\u529b\uff0c\u751a\u81f3\u8d85\u8fc7\u4e86\u5355\u673a\u7684\u627f\u8f7d\u4e0a\u9650\uff0c\u5bfc\u81f4\u670d\u52a1\u5668\u5b95\u673a\u3002 <\/p>\n<\/blockquote>\n
\u89e3\u51b3\u65b9\u6848\uff1a<\/strong> <\/p>\n
\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n
1\u3001\u590d\u5236\u591a\u4efd\u526f\u672c<\/strong><\/p>\n
\u6211\u4eec\u53ef\u4ee5\u5728key\u7684\u540e\u9762\u62fc\u4e0a\u6709\u5e8f\u7f16\u53f7\uff0c\u6bd4\u5982key#01\u3001key#02\u3002\u3002\u3002key#10\u591a\u4e2a\u526f\u672c\uff0c\u8fd9\u4e9b\u52a0\u5de5\u540e\u7684key\u4f4d\u4e8e\u591a\u4e2a\u7f13\u5b58\u8282\u70b9\u4e0a\u3002<\/p>\n
\u5ba2\u6237\u7aef\u6bcf\u6b21\u8bbf\u95ee\u65f6\uff0c\u53ea\u9700\u8981\u5728\u539fkey\u7684\u57fa\u7840\u4e0a\u62fc\u63a5\u4e00\u4e2a\u5206\u7247\u6570\u4e0a\u9650\u7684\u968f\u673a\u6570\uff0c\u5c06\u8bf7\u6c42\u8def\u7531\u4e0d\u5230\u7684\u5b9e\u4f8b\u8282\u70b9\u3002<\/p>\n
\u6ce8\u610f\uff1a\u7f13\u5b58\u4e00\u822c\u90fd\u4f1a\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff0c\u4e3a\u4e86\u907f\u514d\u7f13\u5b58\u7684\u96c6\u4e2d\u5931\u6548\uff0c\u6211\u4eec\u5bf9\u7f13\u5b58\u7684\u8fc7\u671f\u65f6\u95f4\u5c3d\u91cf\u4e0d\u8981\u4e00\u6837\uff0c\u53ef\u4ee5\u5728\u9884\u8bbe\u7684\u57fa\u7840\u4e0a\u589e\u52a0\u4e00\u4e2a\u968f\u673a\u6570\u3002<\/p>\n
\u81f3\u4e8e\u6570\u636e\u8def\u7531\u7684\u5747\u5300\u6027\uff0c\u8fd9\u4e2a\u7531 Hash \u7b97\u6cd5\u6765\u4fdd\u8bc1<\/p>\n
2\u3001\u672c\u5730\u5185\u5b58\u7f13\u5b58<\/strong><\/p>\n
\u628a\u70ed\u70b9\u6570\u636e\u7f13\u5b58\u5728\u5ba2\u6237\u7aef\u7684\u672c\u5730\u5185\u5b58\u4e2d\uff0c\u5e76\u4e14\u8bbe\u7f6e\u4e00\u4e2a\u5931\u6548\u65f6\u95f4\u3002\u5bf9\u4e8e\u6bcf\u6b21\u8bfb\u8bf7\u6c42\uff0c\u5c06\u9996\u5148\u68c0\u67e5\u8be5\u6570\u636e\u662f\u5426\u5b58\u5728\u4e8e\u672c\u5730\u7f13\u5b58\u4e2d\uff0c\u5982\u679c\u5b58\u5728\u5219\u76f4\u63a5\u8fd4\u56de\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u518d\u53bb\u8bbf\u95ee\u5206\u5e03\u5f0f\u7f13\u5b58\u7684\u670d\u52a1\u5668\u3002<\/p>\n
\n
\u597d\u601d\u8def <\/p>\n<\/blockquote>\n
\u672c\u5730\u5185\u5b58\u7f13\u5b58\u5f7b\u5e95\u201c\u89e3\u653e\u201d\u4e86\u7f13\u5b58\u670d\u52a1\u5668\uff0c\u4e0d\u4f1a\u5bf9\u7f13\u5b58\u670d\u52a1\u5668\u6709\u4efb\u4f55\u538b\u529b\u3002 <\/p>\n
 \u7f3a\u70b9\uff1a\u5b9e\u65f6\u611f\u77e5\u6700\u65b0\u7684\u7f13\u5b58\u6570\u636e\u6709\u70b9\u9ebb\u70e6\uff0c\u4f1a\u4ea7\u751f\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\u3002\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e2a\u6bd4\u8f83\u77ed\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u91c7\u7528\u88ab\u52a8\u66f4\u65b0\u3002\u5f53\u7136\uff0c\u4e5f\u53ef\u4ee5\u7528\u76d1\u63a7\u673a\u5236\uff0c\u5982\u679c\u611f\u77e5\u5230\u6570\u636e\u5df2\u7ecf\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u53ca\u65f6\u66f4\u65b0\u672c\u5730\u7f13\u5b58\u3002<\/p>\n
 Redis Cluster \u4e3a\u4ec0\u4e48\u4e0d\u7528\u4e00\u81f4\u6027Hash?<\/strong><\/p>\n
\n
Redis Cluster \u96c6\u7fa4\u670916384\u4e2a\u54c8\u5e0c\u69fd\uff0c\u6bcf\u4e2akey<\/code>\u901a\u8fc7CRC16<\/code>\u6821\u9a8c\u540e\u5bf916384<\/code>\u53d6\u6a21\u6765\u51b3\u5b9a\u653e\u7f6e\u54ea\u4e2a\u69fd\u3002\u96c6\u7fa4\u7684\u6bcf\u4e2a\u8282\u70b9\u8d1f\u8d23\u4e00\u90e8\u5206hash\u69fd\uff0c\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u6bd4\u5982\u5f53\u524d\u96c6\u7fa4\u67093\u4e2a\u8282\u70b9\uff0c\u90a3\u4e48 node-1<\/code> \u5305\u542b 0 \u5230 5460 \u53f7\u54c8\u5e0c\u69fd\uff0cnode-2<\/code> \u5305\u542b 5461 \u5230 10922 \u53f7\u54c8\u5e0c\u69fd\uff0cnode-3<\/code>\u5305\u542b 10922  \u5230 16383 \u53f7\u54c8\u5e0c\u69fd\u3002<\/p>\n<\/blockquote>\n
 <\/p>\n
\n
 \u4e00\u81f4\u6027\u54c8\u5e0c\u7b97\u6cd5\u662f 1997\u5e74\u9ebb\u7701\u7406\u5de5\u5b66\u9662\u7684 Karger \u7b49\u4eba\u63d0\u51fa\u4e86\uff0c\u4e3a\u7684\u5c31\u662f\u89e3\u51b3\u5206\u5e03\u5f0f\u7f13\u5b58\u7684\u95ee\u9898\u3002<\/p>\n<\/blockquote>\n
\n
 \u4e00\u81f4\u6027\u54c8\u5e0c\u7b97\u6cd5\u672c\u8d28\u4e0a\u4e5f\u662f\u4e00\u79cd\u53d6\u6a21\u7b97\u6cd5\uff0c\u4e0d\u540c\u4e8e\u6309\u670d\u52a1\u5668\u6570\u91cf\u53d6\u6a21\uff0c\u4e00\u81f4\u6027\u54c8\u5e0c\u662f\u5bf9\u56fa\u5b9a\u503c 2^32 \u53d6\u6a21\u3002<\/p>\n<\/blockquote>\n
 \u516c\u5f0f = hash\uff08key\uff09 % 2^32<\/p>\n
\n
 \u5176\u53d6\u6a21\u7684\u7ed3\u679c\u5fc5\u7136\u662f\u5728 [0, 2^32-1] \u8fd9\u4e2a\u533a\u95f4\u4e2d\u7684\u6574\u6570\uff0c\u4ece\u5706\u4e0a\u6620\u5c04\u7684\u4f4d\u7f6e\u5f00\u59cb\u987a\u65f6\u9488\u65b9\u5411\u627e\u5230\u7684\u7b2c\u4e00\u4e2a\u8282\u70b9\u5373\u4e3a\u5b58\u50a8key\u7684\u8282\u70b9<\/p>\n<\/blockquote>\n
<\/p>\n
\n
 \u4e00\u81f4\u6027\u54c8\u5e0c\u7b97\u6cd5\u5927\u5927\u7f13\u89e3\u4e86\u6269\u5bb9\u6216\u8005\u7f29\u5bb9\u5bfc\u81f4\u7684\u7f13\u5b58\u5931\u6548\u95ee\u9898\uff0c\u53ea\u5f71\u54cd\u672c\u8282\u70b9\u8d1f\u8d23\u7684\u90a3\u4e00\u5c0f\u6bb5key\u3002\u5982\u679c\u96c6\u7fa4\u7684\u673a\u5668\u4e0d\u591a\uff0c\u4e14\u5e73\u65f6\u5355\u673a\u7684\u8d1f\u8f7d\u6c34\u4f4d\u5f88\u9ad8\uff0c\u67d0\u4e2a\u8282\u70b9\u5b95\u673a\u5e26\u6765\u7684\u538b\u529b\u5f88\u5bb9\u6613\u5f15\u53d1\u96ea\u5d29\u6548\u5e94\u3002<\/p>\n<\/blockquote>\n
\u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/strong><\/p>\n
Redis \u96c6\u7fa4 \u603b\u5171\u67094\u53f0\u673a\u5668\uff0c\u5047\u8bbe\u6570\u636e\u5206\u5e03\u5747\u8861\uff0c\u6bcf\u53f0\u673a\u5668\u627f\u62c5 \u56db\u5206\u4e4b\u4e00\u7684\u6d41\u91cf\uff0c\u5982\u679c\u67d0\u4e00\u53f0\u673a\u5668\u7a81\u7136\u6302\u4e86\uff0c\u987a\u65f6\u9488\u65b9\u5411\u4e0b\u4e00\u53f0\u673a\u5668\u5c06\u8981\u627f\u62c5\u8fd9\u591a\u51fa\u6765\u7684 \u56db\u5206\u4e4b\u4e00 \u6d41\u91cf\uff0c\u6700\u7ec8\u8981\u627f\u62c5 \u4e8c\u5206\u4e4b\u4e00 \u7684\u6d41\u91cf\uff0c\u8fd8\u662f\u6709\u70b9\u6050\u6016\u3002<\/p>\n
\u4f46\u662f\u5982\u679c\u91c7\u7528 CRC16<\/code>\u8ba1\u7b97\u540e\uff0c\u5e76\u7ed3\u5408\u69fd\u4f4d\u4e0e\u5b9e\u4f8b\u7684\u7ed1\u5b9a\u5173\u7cfb\uff0c\u65e0\u8bba\u662f\u6269\u5bb9\u8fd8\u662f\u7f29\u5bb9\uff0c\u53ea\u9700\u5c06\u76f8\u5e94\u8282\u70b9\u7684key\u505a\u4e0b\u6570\u636e\u5e73\u6ed1\u8fc1\u79fb\uff0c\u5e7f\u64ad\u5b58\u50a8\u65b0\u7684\u69fd\u4f4d\u6620\u5c04\u5173\u7cfb\uff0c\u4e0d\u4f1a\u4ea7\u751f\u7f13\u5b58\u5931\u6548\uff0c\u7075\u6d3b\u6027\u5f88\u9ad8\u3002<\/p>\n
\u53e6\u5916\uff0c\u5982\u679c\u670d\u52a1\u5668\u8282\u70b9\u914d\u7f6e\u5b58\u5728\u5dee\u5f02\u5316\uff0c\u6211\u4eec\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5206\u914d\u4e0d\u540c\u8282\u70b9\u8d1f\u8d23\u7684 slot \u7f16\u53f7\uff0c\u8c03\u6574\u4e0d\u540c\u8282\u70b9\u7684\u8d1f\u8f7d\u80fd\u529b\uff0c\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n
\u5f53\u7136\u53ef\u80fd\u6709\u4e9b\u5c0f\u4f19\u4f34\u4f1a\u597d\u5947\uff0cRedis Cluster \u4e3a\u4ec0\u4e48\u662f  16384 \u4e2a\u69fd\u4f4d\uff1f\u53ef\u4ee5\u770b\u4e0b Tom\u54e5 \u4e4b\u524d\u5199\u7684\u4e00\u7bc7\u6587\u7ae0<\/p>\n","protected":false},"excerpt":{"rendered":"
\u89e3\u51b3Redis\u6570\u636e\u503e\u659c\u3001\u70ed\u70b9\u7b49\u95ee...<\/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-201583","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201583","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=201583"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201583\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}