踩坑日誌--redis集羣常見報錯與解決

前言

一：報錯1與解決

1.1：報錯內容

• 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：問題解決

• 經過排查，發現配置文件中監聽的IP地址不可以有127.0.0.1的存在，只能監聽各本機的IP地址

• 經過修改並重啓服務後再次創建集羣立刻成功

• [root@localhost opt]# vi /etc/redis/6379.conf 	'//修改配置文件'
  [root@localhost opt]# /etc/init.d/redis_6379 restart	'//重啓'
  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	'//重新創建集羣'
  
  

二：報錯2與解決

2.1：報錯描述

• 登陸集羣節點查看創建的鍵的時候出現報錯：(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：報錯解決

• 通過添加-c參數，解決問題

  -c:連接集羣結點時使用，此選項可防止moved和ask異常
  

• 重新連接查看，問題解決

  [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"