linux redis-6.0.5 部署+哨兵部署

1、下载Redis redis-6.0.5.tar.gz

解压 tar xzf + Redis包

mv redis-6.0.5 /usr/local/redis

进入 Redis文件安装

cd  /usr/local/redis

安装依赖文件

yum install gcc-c++

yum -y install centos-release-scl

yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils

临时生效

scl enable devtoolset-9 bash

永久生效

echo "source /opt/rh/devtoolset-9/enable" >>/etc/profile

make 安装

运行redis

./src/redis-server redis.conf

2、告警参数优化

1、WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.

　　vi /etc/sysctl.conf

　　增加一行：net.core.somaxconn = 2048

　　运行命令生效：sysctl -p

　　查看 /proc/sys/net/core/somaxconn文件是否变成2048

　　cat  /proc/sys/net/core/somaxconn

2、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.

　　vim /etc/sysctl.conf

　　增加一行：vm.overcommit_memory = 1

　　运行命令生效：sysctl vm.overcommit_memory=1

3、WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.

　　vim /etc/rc.local

　　加入以下两行：

　　ulimit -SHn 65535

　　echo never > /sys/kernel/mm/transparent_hugepage/enabled

3、哨兵模式

修改sentinel.conf文件

vim sentinel.conf

port 26379
daemonize yes
pidfile /var/run/redis-sentinel.pid
logfile "/logs/redis/sentinel-6600.log"
dir /tmp
sentinel monitor mymaster 10.24.242.144 6600 2
sentinel down-after-milliseconds mymaster 30000
sentinel parallel-syncs mymaster 1
sentinel failover-timeout mymaster 180000
sentinel deny-scripts-reconfig yes

其余2台配置文件一直

启动哨兵即可

redis-sentinel sentinel.conf