环境介绍：os：oracle linux 5.6redis:redis-2.6.8master rac1 192.168.2.101slave rac2 192.168.2.102下载地址：http://redis.g
环境介绍：
os：oracle linux 5.6
redis:redis-2.6.8
master rac1 192.168.2.101
slave rac2 192.168.2.102
下载地址：
安装配置redis主从复制
1. 主节点配置
[root@rac1 opt] tar zxvf redis-2.6.8.tar.gz
[root@rac1 opt] cd redis-2.6.8
[root@rac1 redis-2.6.8]# make
[root@rac1 redis-2.6.8]# cp src/redis-server /usr/local/bin/
[root@rac1 redis-2.6.8]# cp redis.conf /etc/redis_master.conf
[root@rac1 redis-2.6.8]# cat /etc/redis_master.conf
# if port 0 is specified redis will not listen on a tcp socket.
port 6379 #此端口是redis默认的，，可以不改
--复制软件到从节点
[root@rac1 opt]# scp -r redis-2.6.8 rac2:/opt
2. 从节点配置
[root@rac2 redis-2.6.8]# cp src/redis-server /usr/local/bin/
[root@rac2 redis-2.6.8]# cp redis.conf /etc/redis_slave.conf
# if port 0 is specified redis will not listen on a tcp socket.
port 6389 #修改为slave节点的自定义端口
# slaveof
slaveof 192.168.2.101 6379 #此步最关键，添加上master的ip或主机及端口号
3. 启动redis服务
--启动master节点
[root@rac1 ~]# redis-server /etc/redis_master.conf > redis_master.log 2>&1 & #&可以使命令在后台的执行，不影响屏幕使用。
_._
_.-``__ ''-._
_.-`` `. `_. ''-._ redis 2.6.8 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) running in stand alone mode
|`-._`-...-` __...-.``-._|'` _.-'| port: 6379
| `-._ `._ / _.-' | pid: 477
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
[477] 12 mar 16:43:30.319 # server started, redis version 2.6.8
[477] 12 mar 16:43:30.319 # warning overcommit_memory is set to 0! background save may fail under low memory condition. to fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
[477] 12 mar 16:43:30.319 * the server is now ready to accept connections on port 6379
[root@rac1 ~]# ps -ef|grep redis
root 5930 14334 0 16:56 pts/1 00:00:02 redis-server /etc/redis_master.conf
root 7250 14334 0 17:03 pts/1 00:00:00 grep redis
--启动slave节点
[root@rac2 ~]# redis-server /etc/redis_slave.conf > redis_slave.log 2>&1 &
[1] 32507
[32507] 12 mar 17:51:55.346 * max number of open files set to 10032
_._
_.-``__ ''-._
_.-`` `. `_. ''-._ redis 2.6.8 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) running in stand alone mode
|`-._`-...-` __...-.``-._|'` _.-'| port: 6389
| `-._ `._ / _.-' | pid: 32507
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
[32507] 12 mar 17:51:55.350 # server started, redis version 2.6.8
[32507] 12 mar 17:51:55.350 # warning overcommit_memory is set to 0! background save may fail under low memory condition. to fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
[32507] 12 mar 17:51:55.350 * the server is now ready to accept connections on port 6389
[32507] 12 mar 17:51:56.348 * connecting to master...
[32507] 12 mar 17:51:56.349 * master slave sync started
[32507] 12 mar 17:51:56.495 * non blocking connect for sync fired the event.
[32507] 12 mar 17:51:57.014 * master replied to ping, replication can continue...
[32507] 12 mar 17:51:57.028 * master slave sync: receiving 18 bytes from master
[32507] 12 mar 17:51:57.029 * master slave sync: loading db in memory
[32507] 12 mar 17:51:57.037 * master slave sync: finished with success
[root@rac2 ~]# ps -ef|grep redis
root 321 29770 0 17:54 pts/1 00:00:00 grep redis
root 32507 29770 0 17:51 pts/1 00:00:00 redis-server /etc/redis_slave.conf