Cluster Countkeysinslot - Redis

redis hash slot   Dan redis crossslot keys in request don''t hash to the same slot

在前几年，redis 如果要搞几个节点，每个节点存储一部分的数据，得借助一些中间件来实现，比如说有codis，或者twemproxy，都有。有一些redis 中间件，

Redis supports multi-key commands in Cluster Mode, such as Set type unions or intersections, mset and mget, as long as the keys all hash to the same slot By hash slots with actual nodes network coordinates , so that when a command is received, it can be sent to what is

demo slot supermania CLUSTERDOWN Hash slot not served Using 7 in Mac OS X Yosemite Jan-Erik Rediger's profile photo Jan-Erik Rediger unread, Mar 21, 2016, 9 Redis Cluster implements a concept called hash tags that can be used in order to force certain keys to be stored in the same hash slot, see Keys hash tag