centos7编译安装redis

1、下载源码

wget http://download.redis.io/releases/redis-4.0.10.tar.gz
tar -xzf redis-4.0.10.tar.gz
cd redis-4.0.10

2、编译安装

make PREFIX=/usr/local/redis install
make install
mkdir /usr/local/redis/etc/
cp redis.conf /usr/local/redis/etc/
cd /usr/local/redis/bin/
ln -s /usr/local/redis/bin/redis-benchmark /usr/bin/redis-benchmark
ln -s /usr/local/redis/bin/redis-server /usr/bin/redis-server
ln -s /usr/local/redis/bin/redis-cli /usr/bin/redis-cli

3、如果有如下警告提醒可以修改

第一个警告：The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
第二个警告：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.
第三个警告：you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix thisissue 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 thesetting after a reboot. Redis must be restarted after THP is disabled.

以上警告解决办法

第一个警告
将net.core.somaxconn = 1024添加到/etc/sysctl.conf中，然后执行sysctl -p生效配置。

第二个警告
将vm.overcommit_memory = 1添加到/etc/sysctl.conf中，然后执行sysctl -p生效配置。

第三个警告（本人觉得可以忽略，如果你想处理就按下面这个命令执行）
将echo never > /sys/kernel/mm/transparent_hugepage/enabled添加到/etc/rc.local中，然后执行source /etc/rc.local生效配置。

4、测试一下

# 客户端启动
/usr/local/redis/bin/redis-cli 
127.0.0.1:6379> set testa helloworld
OK
127.0.0.1:6379> get testa
"helloworld"
127.0.0.1:6379> exit

5、如果你想后台启动redis

vim /usr/local/redis/etc/redis.conf
把daemonize设置为yes

6、如果你想把启动文件放到 /etc/init.d/ 目录下

cd 你下载源码redis源码包里
cp utils/redis_init_script /etc/init.d/redis

别忘了 修改一下 /etc/init.d/redis

比如 EXEC = 你的启动程序(/usr/bin/redis-server)

CLIEXEC = 你的启动程序(/usr/bin/redis-cli)