ERR Client sent AUTH, but no password is set
原因：
redis 127.0.0.1:6379> CONFIG SET requirepass "123456"
redis 127.0.0.1:6379> AUTH 123456
====================================================================================
errcode:40163 errmsg:code been used, hints: [ req_id: DivKRA0771th31 ]
原因：
code只能用一次