prometheus专题—（二）安装Mysql Redis

# 下载mysql源安装包
wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
# 安装mysql源
yum localinstall mysql57-community-release-el7-8.noarch.rpm -y 
# 检查mysql源是否安装成功
yum repolist enabled | grep "mysql.*-community.*"
# 安装MySQL
yum install mysql-community-server -y 
# 3、启动MySQL服务
systemctl start mysqld
# 查看MySQL的启动状态
systemctl status mysqld
#4、开机启动
systemctl enable mysqld
systemctl daemon-reload
# 5、修改root本地登录密码
# mysql安装完成之后，在/var/log/mysqld.log文件中给root生成了一个默认密码。通过下面的方式找到root默认密码，然后登录mysql进行修改：
grep 'temporary password' /var/log/mysqld.log
mysql -uroot -p
# mysql5.7默认安装了密码安全检查插件(validate_password)，默认密码检查策略要求密码必须包含：大小写字母、数字和特殊符号，
# 并且长度不能少于8位。否则会提示ERROR 1819 (HY000): Your password does not satisfy the current policy requirements错误
# 如果不需要密码策略，添加my.cnf文件中添加如下配置禁用即可：
# 配置默认编码为utf8
# 关闭客户端dns反解
echo -e "validate_password = off\ncharacter_set_server=utf8\ninit_connect='SET NAMES utf8'\nskip-name-resolve\n" >> /etc/my.cnf 
systemctl restart mysqld 
mysql -uroot -p 
## 授权
alter user 'root'@'localhost' identified by '123123';
grant all privileges on *.* to root@'%' identified by '123123' with grant option;
flush privileges;

yum 安装redis 3.2
yum -y install redis

文档 https://redis.io/download
编译安装redis-6.2.1
yum install -y gcc gcc-c++ tcl
wget  -O /opt/tgzs/redis-6.2.1.tar.gz https://download.redis.io/releases/redis-6.2.1.tar.gz
cd /opt/tgzs/
#解压redis
tar xf redis-6.2.1.tar.gz
#进入解压后的目录
cd redis-6.2.1
#分配器allocator，如果有MALLOC  这个 环境变量， 会有用这个环境变量的 去建立Redis。
#而且libc 并不是默认的分配器， 默认的是 jemalloc, 因为 jemalloc 被证明 有更少的 fragmentation problems 比libc。
#但是如果你又没有jemalloc而只有 libc 当然 make 出错。 所以加这么一个参数,运行如下命令：
make MALLOC=libc -j 20
#编译
# make -j 20
#创建redis安装目录，主要用于存放redis所需bin文件
mkdir -p /usr/local/redis
#安装redis并指定安装目录
make PREFIX=/usr/local/redis/ install
# 设置path
export PATH=$PATH:/usr/local/redis/bin
#复制默认配置文件到/etc
egrep -v  "^$|#" redis.conf   > redis_sample.conf
#修改配置文件监听IP为0.0.0.0，否则只能本地登录
sed -i s/bind\ 127.0.0.1/bind\ 0.0.0.0/g redis_sample.conf
#修改运行方式为后台运行
sed -i s/daemonize\ no/daemonize\ yes/g redis_sample.conf
/bin/cp -f redis_sample.conf /etc/redis_6379.conf 
/bin/cp -f redis_sample.conf /etc/redis_6479.conf 
#设置日志文件路径
sed -i s@logfile\ \"\"@logfile\ \"/opt/logs/redis_6379.log\"@g /etc/redis_6379.conf 
sed -i s@logfile\ \"\"@logfile\ \"/opt/logs/redis_6479.log\"@g /etc/redis_6479.conf 
#设置数据目录
sed -i s@dir\ \./@dir\ /var/lib/redis_6379@g /etc/redis_6379.conf 
sed -i s@dir\ \./@dir\ /var/lib/redis_6479@g /etc/redis_6479.conf 
# 修改port
sed -i 's/port 6379/port 6379/g' /etc/redis_6379.conf 
sed -i 's/port 6379/port 6479/g' /etc/redis_6479.conf 
mkdir  /var/lib/redis_6379
mkdir  /var/lib/redis_6479
mkdir  /opt/logs
cat <<EOF > /etc/systemd/system/redis_6379.service 
[Unit]
Description=The redis-server Process Manager
After=syslog.target network.target
[Service]
Type=forking
ExecStart=/usr/local/redis/bin/redis-server /etc/redis_6379.conf
#ExecStop=/usr/local/redis/bin/redis-shutdown
[Install]
WantedBy=multi-user.target
EOF
cat <<EOF > /etc/systemd/system/redis_6479.service 
[Unit]
Description=The redis-server Process Manager
After=syslog.target network.target
[Service]
Type=forking
ExecStart=/usr/local/redis/bin/redis-server /etc/redis_6479.conf
#ExecStop=/usr/local/redis/bin/redis-shutdown
[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
#设置redis开机自启
system enable redis_6379
system enable redis_6479
#启动redis
systemctl restart redis_6379
systemctl restart redis_6479
#查看redis状态
systemctl status redis_6379
systemctl status redis_6479