redis主从配置+sentinel哨兵模式

最新推荐文章于 2025-08-10 13:24:43 发布

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最新推荐文章于 2025-08-10 13:24:43 发布

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文章标签：数据库

原文链接：http://www.cnblogs.com/priestess-zhao/p/8267776.html

本文介绍如何配置Redis的主从复制及Sentinel模式，实现高可用性。包括安装配置、启动命令、主从状态验证等步骤。

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redis主从配置+sentinel哨兵模式

redis版本:redis-2.8.19.tar.gz

架构:2个节点

节点1: 10.8.207.25

节点2: 10.8.207.26

节点1部署redis实例,角色master,部署sentinel实例,监控redis-master节点

节点2部署redis实例,角色slave ,部署sentinel实例,监控redis-master节点

一.配置redis主从

节点1:redis-master配置

1.编译安装redis

Copy安装文件到/usr目录下：

tar zxvf redis-2.8.19.tar.gz

cd redis-2.8.19

make

2.更改redis.conf配置文件

daemonize no 改为 yes #后台运行

节点2:redis-slave配置

1.编译安装redis

Copy安装文件到/usr目录下：

tar zxvf redis-2.8.19.tar.gz

cd redis-2.8.19

make

2.更改redis.conf配置文件

daemonize no 改为 yes #后台运行

slaveof 10.8.207.25 6379 #指向master服务器IP、端口

启动redis-master

# src/redis-server -p 6379 redis.conf -h 10.8.207.25

启动redis-slave

# src/redis-server -p 6379 redis.conf -h 10.8.207.26

查看redis-master运行信息

# src/redis-cli -h 10.8.207.25 -p 6379 info replication

 

# Replication

role:master

connected_slaves:1

slave0:ip=10.8.207.26,port=6379,state=online,offset=69298006,lag=0

master_repl_offset:69298143

repl_backlog_active:1

repl_backlog_size:1048576

repl_backlog_first_byte_offset:68249568

repl_backlog_histlen:1048576

查看redis-slave运行信息

# src/redis-cli -h 10.8.207.26 -p 6379 info replication

 

# Replication

role:slave

master_host:10.8.207.25

master_port:6379

master_link_status:up

master_last_io_seconds_ago:0

master_sync_in_progress:0

slave_repl_offset:69302158

slave_priority:100

slave_read_only:1

connected_slaves:0

master_repl_offset:0

repl_backlog_active:0

repl_backlog_size:1048576

repl_backlog_first_byte_offset:0

repl_backlog_histlen:0

测试主从复制

redis-master

# src/redis-cli -p 6379 -h 10.8.207.25

10.8.207.25:6379> set name 123

OK

10.8.207.25:6379> get name

"123"

Redis-slave

# src/redis-cli -p 6379 -h 10.8.207.26

10.8.207.26:6379> get name

"123"

二.配置sentinel哨兵模式

1.配置sentinel.conf配置文件

2个sentinel实例配置相同mastername mymaster

port 26379

sentinel monitor mymaster 10.8.207.25 6379 1

启动redis-master上的sentinel

src/redis-sentinel sentinel.conf -h 10.8.207.25 &

启动redis-slave上的sentinel

src/redis-sentinel sentinel.conf -h 10.8.207.26 &

查看redis-master上的sentinel运行信息,端口不可省略

# src/redis-cli  -h 10.8.207.25 -p 26379 info sentinel

 

# Sentinel

sentinel_masters:1

sentinel_tilt:0

sentinel_running_scripts:0

sentinel_scripts_queue_length:0

master0:name=mymaster,status=ok,address=10.8.207.25:6379,slaves=1,sentinels=2

查看redis-slave上的sentinel运行信息,端口不可省略

# src/redis-cli  -h 10.8.207.26 -p 26379 info sentinel

 

# Sentinel

sentinel_masters:1

sentinel_tilt:0

sentinel_running_scripts:0

sentinel_scripts_queue_length:0

master0:name=mymaster,status=ok,address=10.8.207.25:6379,slaves=1,sentinels=2

2.验证sentinel切换主从

# src/redis-cli  -h 10.8.207.25 shutdown

查看redis-master上的sentinel运行信息

# src/redis-cli  -h 10.8.207.25 -p 26379 info sentinel

 

# Sentinel

sentinel_masters:1

sentinel_tilt:0

sentinel_running_scripts:0

sentinel_scripts_queue_length:0

master0:name=mymaster,status=ok,address=10.8.207.26:6379,slaves=1,sentinels=2

查看redis-slave上的sentinel运行信息

# # src/redis-cli  -h 10.8.207.26 -p 26379 info sentinel

 

# Sentinel

sentinel_masters:1

sentinel_tilt:0

sentinel_running_scripts:0

sentinel_scripts_queue_length:0

master0:name=mymaster,status=ok,address=10.8.207.26:6379,slaves=1,sentinels=2