Redis6.2 源码编译和部署

源码编译

下载源码

下载地址：https://download.redis.io/releases/

检查是否安装gcc

[root@redis240 src]# gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)

检查是否安装jemalloc

Redis 内存碎片自动清理功能必须配置jemalloc

没安装参考：https://199604.com/3161(二进制安装)，https://pkgs.org/download/jemalloc(rpm)

[root@redis240 src]# ldconfig -p | grep jemalloc
        libjemalloc.so.2 (libc6,x86-64) => /usr/local/lib/libjemalloc.so.2
        libjemalloc.so (libc6,x86-64) => /usr/local/lib/libjemalloc.so

编译源码

# -j 指定cpu个数提升编译速度，MALLOC 指定内存分配器
make -j 4 MALLOC=jemalloc
# PREFIX指定二进制安装路径，默认安装/usr/local/bin
make PREFIX=/work_app/redis install  

#cd /work_app/redis && ls

操作系统调整

调整vm.overcommit_memory

调整vm.overcommit_memory避免内存不足时导致 Redis fork 失败

# 1 表示内核允许超量使用内存直到用完为止
echo 1 > /proc/sys/vm/overcommit_memory
# 持久化参数
echo "vm.overcommit_memory=1" >>/etc/sysctl.conf 
sysctl -p

禁用Transparent Huge Pages

避免降低 Redis fork 速度和写速度

echo never >  /sys/kernel/mm/transparent_hugepage/enabled
echo "echo never >  /sys/kernel/mm/transparent_hugepage/enabled" >> /etc/rc.local 
chmod +x /etc/rc.local

echo 2048 > /proc/sys/net/core/somaxconn 
#echo 2048 >> /proc/sys/net/ipv4/tcp_max_syn_backlog 
echo "net.core.somaxconn= 1024" >>/etc/sysctl.conf 
#echo "net.ipv4.tcp_max_syn_backlog = 2048" >>/etc/sysctl.conf
sysctl -p

适当调整ulimit

cat /etc/security/limits.conf
* soft nofile 65535
* hard nofile 65535
* soft nproc 65565
* hard nproc 65565

参数文件设置

mdkir -p /work_app/redis/conf/
mkdir -p /work_app/redis/logs/
cp /usr/local/src/redis-6.2.16/redis.conf /work_app/redis/conf/

# redis.conf 我这边修改了一下参数
daemonize yes
logfile "/work_app/redis/logs/redis.log"
dir /work_app/redis/
# 密码
requirepass xxxx
maxclients 10000
# 50gb
# 最大内存
maxmemory 53687091200
#无差别随机删
maxmemory-policy allkeys-random
# RDB 持久化
save 900 1
save 300 10
save 60 10000

启动 Redis脚本

[root@redis78 redis]# cat start-redis.sh
cd /work_app/redis && ./bin/redis-server /work_app/redis/conf/redis.conf