redis-(error) CLUSTERDOWN Hash slot not served

背景

搭建redis集群，使用redis-cli连接客户端，设置键值对报错

原因

没有分配槽，因为redis集群要分配16384个槽来储存数据，那么没有分配槽则报如上错误

解决方案

1.  
   [root@sg193 redis-6.2.5]# redis-cli -a DDSS1234 --cluster fix 10.35.23.193:46379
2.  
   Warning: Using a password with '-a' or '-u' option on the command line interface may not b e safe.
3.  
   10.35.23.193:46379 (c07e95a1...) -> 0 keys | 0 slots | 0 slaves.
4.  
   [OK] 0 keys in 1 masters.
5.  
   0.00 keys per slot on average.
6.  
   >>> Performing Cluster Check (using node 10.35.23.193:46379)
7.  
   M: c07e95a163297f7172695910c2cf41501765e2c1 10.35.23.193:46379
8.  
   slots: (0 slots) master
9.  
   [OK] All nodes agree about slots configuration.
10.  
    >>> Check for open slots...
11.  
    >>> Check slots coverage...
12.  
    [ERR] Not all 16384 slots are covered by nodes.
13.  
     
14.  
    >>> Fixing slots coverage...
15.  
    The following uncovered slots have no keys across the cluster:
16.  
    [0-16383]
17.  
    Fix these slots by covering with a random node? (type 'yes' to accept): yes
18.  
    >>> Covering slot 660 with 10.35.23.193:46379
19.  
    >>> Covering slot 4315 with 10.35.23.193:46379
20.  
    >>> Covering slot 13760 with 10.35.23.193:46379
21.  
    >>> Covering slot 10315 with 10.35.23.193:46379
22.  
    >>> Covering slot 3334 with 10.35.23.193:46379
23.  
    >>> Covering slot 7290 with 10.35.23.193:46379
24.  
    >>> Covering slot 10269 with 10.35.23.193:46379
25.  
    >>> Covering slot 9950 with 10.35.23.193:46379
26.  
    >>> Covering slot 4886 with 10.35.23.193:46379

PS:

        一定要输入yes而不是y

        -a 后接redis设置的密码

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