Redis常用命令

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安装redis

cd /path/redis
make
sudo cp /opt/redis/src/redis-server /usr/local/bin
sudo cp /opt/redis/src/redis-cli /usr/local/bin
sudo cp /opt/redis/src/redis-trib.rb /usr/local/bin

slave配置如下节点

slaveof

redis cluster安装

启动各个实例

redis-server /opt/redis/conf/redis-6379.conf > /opt/redis/logs/redis-6379.log 2>&1 &
redis-server /opt/redis/conf/redis-6380.conf > /opt/redis/logs/redis-6380.log 2>&1 &
redis-server /opt/redis/conf/redis-6381.conf > /opt/redis/logs/redis-6381.log 2>&1 &
redis-server /opt/redis/conf/redis-7379.conf > /opt/redis/logs/redis-7379.log 2>&1 &
redis-server /opt/redis/conf/redis-7380.conf > /opt/redis/logs/redis-7380.log 2>&1 &
redis-server /opt/redis/conf/redis-7381.conf > /opt/redis/logs/redis-7381.log 2>&1 &

启动集群

redis-trib.rb create –replicas 1 192.168.114.129:6379 192.168.114.129:6380 192.168.114.129:6381 192.168.114.129:7379 192.168.114.129:7380 192.168.114.129:7381

集群模式登录

redis-cli -c -p 6380

清空数据库

flushdb

关闭所有redis进程

pkill -9 redis

关系redis，进入redis-cli

shutdown

集群重启后会报如下错误：

Creating cluster
[ERR] Node 192.168.114.129:6379 is not empty. Either the node already knows other nodes (check with CLUSTER NODES) or contains some key in database 0.

解决方案为清空数据库，并清空./data/目录下文件。这样是可以启动的，但是原来的数据还是丢失了，不知道是自己的想法不对，还是redis cluster根本没考虑，所有节点都会挂掉的情况。

查看一下，集群情况

redis-trib.rb check 192.168.114.129:6379

查看集群信息

cluster info

查看集群节点信息

cluster nodes

查看节点配置信息

config get maxclients

查看系统信息

info

查看客户端连接

client list

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