案例一：redis集群各节点内存占用率差异过大

-c 表示集群交互
1.确认reids各节点key的数量是否分布均匀
/tools/redis-6.2.6/bin/redis-cli -h 127.0.0.1 -p 7000 -c info keyspace
2.确认节点是否存在大key
/tools/redis-6.2.6/bin/redis-cli -h 127.0.0.1 -p 7000 —bigkeys
3.确认大key所在slots
/tools/redis-6.2.6/bin/redis-cli -h 127.0.0.1 -p 7000 -c cluster keyslot key
4.查看各节点与slots的对应信息
/tools/redis-6.2.6/bin/redis-cli -h 127.0.0.1 -p 7000 -c cluster slots
/tools/redis-6.2.6/bin/redis-cli -h 127.0.0.1 -p 7000 -c cluster nodes