redis的主从配置方法详解

Redis  /  管理员 发布于 7年前   173

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 redisroot  5930 14334 0 16:56 pts/1 00:00:02 redis-server /etc/redis_master.confroot  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 redisroot  321 29770 0 17:54 pts/1 00:00:00 grep redisroot  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 6379Trying 192.168.2.101...Connected to rac1.localdomain (192.168.2.101).Escape character is '^]'.rpush data 1:1rpush data 1:2lrange data 0 -1*2$11$11

slave节点验证

[root@rac1 ~]# telnet 192.168.2.102 6389Trying 192.168.2.102...Connected to rac2.localdomain (192.168.2.102).Escape character is '^]'.lrange data 0 -1*2$11$11quit+OKConnection 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