Redis的主从复制配置实验

Redis的主从复制配置实验

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：
http://redis.googlecode.com/files/redis-2.6.8.tar.gz

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 <masterip> <masterport>
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
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | http://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
[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
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | http://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
[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

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