踩坑日志--redis集群常见报错与解决

前言

一：报错1与解决

1.1：报错内容

• 

• Can I set the above configuration? (type 'yes' to accept): yes
  >>> Nodes configuration updated
  >>> Assign a different config epoch to each node
  >>> Sending CLUSTER MEET messages to join the cluster
  Waiting for the cluster to join
  ....................................................................................................................................................................................................................................................^C
  
  

1.2：问题解决

• 经过排查，发现配置文件中监听的IP地址不可以有127.0.0.1的存在，只能监听各本机的IP地址

• 经过修改并重启服务后再次创建集群立刻成功

• [root@localhost opt]# vi /etc/redis/6379.conf 	'//修改配置文件'
  [root@localhost opt]# /etc/init.d/redis_6379 restart	'//重启'
  Stopping ...
  Waiting for Redis to shutdown ...
  Redis stopped
  Starting Redis server...
  [root@localhost opt]# netstat -antp |grep  6379
  tcp        0      0 192.168.233.128:16379   0.0.0.0:*               LISTEN      76973/redis-server  
  tcp        0      0 192.168.233.128:6379    0.0.0.0:*               LISTEN      76973/redis-server  
  [root@localhost opt]# redis-cli --cluster create --cluster-replicas 1 192.168.233.128:6379 192.168.233.129:6379 192.168.233.130:6379 192.168.233.131:6379 192.168.233.132:6379 192.168.233.133:6379	'//重新创建集群'
  
  

• 

二：报错2与解决

2.1：报错描述

• 登陆集群节点查看创建的键的时候出现报错：(error) MOVED 9379 192.168.233.129:6379

• [root@localhost opt]# redis-cli -h 192.168.233.130 -p 6379 192.168.233.130:6379> get cent
  (error) MOVED 9379 192.168.233.129:6379
  
  

2.2：报错解决

• 通过添加-c参数，解决问题

  -c:连接集群结点时使用，此选项可防止moved和ask异常
  

• 重新连接查看，问题解决

  [root@localhost opt]# redis-cli -h 192.168.233.130 -p 6379 -c
  192.168.233.130:6379> get cent
  -> Redirected to slot [9379] located at 192.168.233.129:6379
  "7.7"