redis的主从配置方法详解

Linux系统下的redis的主从配置方法非常简单，下面给大家分享一下redis的主从配置方法具体的操作步骤

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

安装配置主从redis

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

4. 验证主从复制

master节点数据输入

[root@rac1 ~]# telnet 192.168.2.101 6379

Trying 192.168.2.101...

Connected to rac1.localdomain (192.168.2.101).

Escape character is "^]".

rpush data 1

rpush data 1

lrange data 0 -1

1

slave节点验证

[root@rac1 ~]# telnet 192.168.2.102 6389

Trying 192.168.2.102...

Connected to rac2.localdomain (192.168.2.102).

Escape character is "^]".

lrange data 0 -1

Connection closed by foreign host.

好了，到此主从redis已经配置完成并成功运行了，Linux系统下的redis主从配置方法操作很简单只要接步骤认真配置基本都可以配置成功

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数据库远程运维 redis的主从配置方法详解