Install Redis Daemon and Redis PHP extention on CentOS/RHEL/cPanel

Install Development Tools in Linux (GNU GCC Compiler and others)

gcc

c++

make

others

yum install -y httpd php gcc glibc glibc-common gd gd-devel make net-snmp  (RedHat / CentOS)

Install Redis Daemon and Redis PHP extention on CentOS/RHEL/cPanel

cd /usr/local/

wget http://download.redis.io/releases/redis-2.8.12.tar.gz

tar -xvzf redis-2.8.12.tar.gz

cd redis-2.8.12

make

cp src/redis-server /usr/local/bin

cp src/redis-cli /usr/local/bin

mkdir -p /etc/redis

mkdir -p /var/redis

cp redis.conf /etc/redis/redis.conf

Open /etc/redis/redis.conf using vi edirot and set the values as follows.

daemonize yes

port 6379

bind 127.0.0.1

dir  /var/redis/

logfile  /var/log/redis.log

pidfile  /var/run/redis.pid

Now create the startup script. Create a new file as /etc/init.d/redis and add the following contents to it

( Reference https://gist.github.com/paulrosania/257849 ). And make it executable ( chmod 755 /etc/init.d/redis ).

#!/bin/sh

#

# redis - this script starts and stops the redis-server daemon

#

# chkconfig:   - 85 15

# description:  Redis is a persistent key-value database

# processname: redis-server

# config:      /etc/redis/redis.conf

# config:      /etc/sysconfig/redis

# pidfile:     /var/run/redis.pid

# Source function library.

. /etc/rc.d/init.d/functions

# Source networking configuration.

. /etc/sysconfig/network

# Check that networking is up.

[ "$NETWORKING" = "no" ] && exit 0

redis="/usr/local/bin/redis-server"

prog=$(basename $redis)

REDIS_CONF_FILE="/etc/redis/redis.conf"

[ -f /etc/sysconfig/redis ] && . /etc/sysconfig/redis

lockfile=/var/lock/subsys/redis

start() {

    [ -x $redis ] || exit 5

    [ -f $REDIS_CONF_FILE ] || exit 6

    echo -n $"Starting $prog: "

    daemon $redis $REDIS_CONF_FILE

    retval=$?

    echo

    [ $retval -eq 0 ] && touch $lockfile

    return $retval

}

stop() {

    echo -n $"Stopping $prog: "

    killproc $prog -QUIT

    retval=$?

    echo

    [ $retval -eq 0 ] && rm -f $lockfile

    return $retval

}

restart() {

    stop

    start

}

reload() {

    echo -n $"Reloading $prog: "

    killproc $redis -HUP

    RETVAL=$?

    echo

}

force_reload() {

    restart

}

rh_status() {

    status $prog

}

rh_status_q() {

    rh_status >/dev/null 2>&1

}

case "$1" in

    start)

        rh_status_q && exit 0

        $1

        ;;

    stop)

        rh_status_q || exit 0

        $1

        ;;

    restart|configtest)

        $1

        ;;

    reload)

        rh_status_q || exit 7

        $1

        ;;

    force-reload)

        force_reload

        ;;

    status)

        rh_status

        ;;

    condrestart|try-restart)

        rh_status_q || exit 0

                    ;;

    *)

        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"

        exit 2

esac

Now make sure the daemon will start after server reboot.

chkconfig --add redis

chkconfig redis on

Now we can start redis using command /etc/init.d/redis start

To make sure redis is working, run command “redis-cli ping” from command line. If you get result “PONG”, that shows redis is working.

Now install redis PHP extension, using following command.

pecl install redis

Now open php.ini ( /usr/local/lib/php.ini on cPanel servers ) file and add the following line to it

extension=redis.so

Now restart Apache to apply the changes to php.ini file.