标签：memory load inux local 使用 span aio shmmax useradd
环境准备
| 主机名 | sht-sgmhadoopdn-01 | sht-sgmhadoopdn-02 | sht-sgmhadoopdn-03 |
| OS | CentOS Linux release 7.6.1810 (Core) | ||
| IP地址 | 172.16.101.58 | 172.16.101.58 | 172.16.101.58 |
| redis安装路径 | /usr/local/redis | ||
| 角色 | master | slave | slave |
redis各版本下载地址
http://download.redis.io/releases/
此处我们选择3.2.12版本
http://download.redis.io/releases/redis-3.2.12.tar.gz
系统环境配置
新建系统用户redis
# groupadd -r dba
# useradd -r -g dba -G root redis
内核参数优化
# cat /etc/sysctl.conf ....................... vm.overcommit_memory=1 vm.swappiness=1 fs.aio-max-nr=1048576 fs.file-max= 7672460 net.ipv4.ip_local_port_range=9000 65500 net.core.rmem_default=262144 net.core.rmem_max=4194304 net.core.wmem_default=262144 net.core.wmem_max=1048586 net.core.somaxconn = 2048 kernel.sem= 50100 64128000 50100 1280 kernel.shmall=5242880 kernel.shmmax=12884901888 .......................
系统资源使用优化
# echo "redis soft nproc 65536" >> /etc/security/limits.conf # echo "redis hard nproc 65536" >> /etc/security/limits.conf # echo "redis soft nofile 65536" >> /etc/security/limits.conf # echo "redis hard nofile 65536" >> /etc/security/limits.conf
大内存页优化
# echo "echo never > /sys/kernel/mm/transparent_hugepage/enabled" >> /etc/rc.local
标签：memory load inux local 使用 span aio shmmax useradd
原文地址：https://www.cnblogs.com/ilifeilong/p/12588375.html
