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INSTALL REDIS SERVER
https://www.linode.com/docs/databases/redis/install-and-configure-redis-on-centos-7/
https://computingforgeeks.com/how-to-install-latest-redis-on-centos-7/
=============================================================================
yum -y install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
yum --enablerepo=remi install redis

systemctl enable --now redis

redis-cli
PING

sysctl vm.overcommit_memory=1
nano /etc/sysctl.conf
tambahkan dibawah :
vm.overcommit_memory = 1

nano /etc/redis.conf
Edit :
appendonly yes
appendfsync everysec
requirepass [isikan password]
systemctl restart redis

Benchmark :
redis-benchmark -h 127.0.0.1 -p 6379 -n 10000 -c 15

=============================================================================
INSTALL PHP-REDIS
=============================================================================
yum install php-pecl-zip
yum install libzip-devel
yum install libzstd-devel
pecl install igbinary igbinary-devel redis
echo extension=redis.so > /etc/php.d/redis.ini

atau paling mudah :
yum install php-redis