环境

主机名 地址 操作系统 初始状态
sentinel86 10.1.14.86 CentOS7.4 null
redis87 10.1.14.87 CentOS7.4 master
redis88 10.1.14.88 CentOS7.4 slave
redis89 10.1.14.89 CentOS7.4 slave

安装 redis

  • 在全部服务器上安装 redis 
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    yum install epel-release
yum install redis

redis master 配置

  • 在 redis87 上修改 /etc/redis.conf 
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    bind 0.0.0.0

redis slave 配置

  • 在 redis88 和 redis89 上修改 /etc/redis.conf 
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    bind 0.0.0.0
slaveof 10.1.14.87 6379

redis sentinel 配置

  • 在 sentinel86 上创建三个 sentinel 配置文件 
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    cd /etc/
cp redis-sentinel.conf redis-sentinel-16379.conf
cp redis-sentinel.conf redis-sentinel-26379.conf
mv redis-sentinel.conf redis-sentinel-36379.conf
chown redis.root redis-sentinel-?6379.conf
  • 修改 /etc/redis-sentinel-16379.conf 
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    bind 0.0.0.0
port 16379
dir /var/log/redis/16379
sentinel monitor mymaster 10.1.14.87 6379 2
sentinel down-after-milliseconds mymaster 8000
logfile /var/log/redis/16379/sentinel.log
  • 修改 /etc/redis-sentinel-26379.conf 
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    bind 0.0.0.0
port 26379
dir /var/log/redis/26379
sentinel monitor mymaster 10.1.14.87 6379 2
sentinel down-after-milliseconds mymaster 8000
logfile /var/log/redis/26379/sentinel.log
  • 修改 /etc/redis-sentinel-36379.conf 
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    bind 0.0.0.0
port 36379
dir /var/log/redis/36379
sentinel monitor mymaster 10.1.14.87 6379 2
sentinel down-after-milliseconds mymaster 8000
logfile /var/log/redis/36379/sentinel.log
  • 创建日志目录 
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    cd /var/log/redis/
mkdir 16379 26379 36379
chown redis.redis ?6379 -R
  • 创建两个 sentinel service 文件 
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    cd /usr/lib/systemd/system/
cp redis-sentinel.service redis-sentinel-16379.service
cp redis-sentinel.service redis-sentinel-26379.service
mv redis-sentinel.service redis-sentinel-36379.service
  • 修改 /usr/lib/systemd/system/redis-sentinel-16379.service 
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    ExecStart=/usr/bin/redis-sentinel /etc/redis-sentinel-16379.conf --daemonize no
ExecStop=/usr/libexec/redis-shutdown redis-sentinel-16379
  • 修改 /usr/lib/systemd/system/redis-sentinel-26379.service 
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    ExecStart=/usr/bin/redis-sentinel /etc/redis-sentinel-26379.conf --daemonize no
ExecStop=/usr/libexec/redis-shutdown redis-sentinel-26379
  • 修改 /usr/lib/systemd/system/redis-sentinel-36379.service 
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    ExecStart=/usr/bin/redis-sentinel /etc/redis-sentinel-36379.conf --daemonize no
ExecStop=/usr/libexec/redis-shutdown redis-sentinel-36379
  • 更新服务 
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    systemctl daemon-reload

启动 redis 服务

  • 在 redis87、redis88 和 redis89 上启动 redis 服务 
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    systemctl start redis
# 查看当前节点主从信息
redis-cli info replication

启动 redis sentinel 监控

  • 在 sentinel86 上启动 sentinel 监管程序 
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    systemctl start redis-sentinel-16379
systemctl start redis-sentinel-26379
systemctl start redis-sentinel-36379