What Is Redis ?<\/p>\n
Redis is an BSD licensed, open source, advanced key-value cache and store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets, sorted sets, bitmaps and hyperloglogs. Refer redis.io\/topics\/introduction<\/strong> to know more about Redis. <\/p>\n We will learn how to install redis on a CentOS cPanel server. On a CentOS cPanel server, we will need to install redis daemon & the redis PHP extension. Once installed & enabled it helps in boosting the eCommerce website performance.<\/p>\n Install Redis Daemon<\/em><\/strong><\/p>\n cd \/usr\/local\/ Now, let’s edit \/etc\/redis\/redis.conf & configure it to work with the server. Set the values as below.<\/p>\n daemonize yes We will now need a startup script which will start, stop, restart redis on your server. Create a file \/etc\/init.d\/redis & add below content. Set permissions to 755 so that the file is executable.<\/p>\n #!\/bin\/sh # Source function library. # Source networking configuration. # Check that networking is up. redis=”\/usr\/local\/bin\/redis-server” REDIS_CONF_FILE=”\/etc\/redis\/redis.conf”<\/p>\n [ -f \/etc\/sysconfig\/redis ] && . \/etc\/sysconfig\/redis<\/p>\n lockfile=\/var\/lock\/subsys\/redis<\/p>\n start() { stop() { restart() { reload() { force_reload() { rh_status() { rh_status_q() { case “$1″ in Update the system services & configure redis daemon to start after server reboot.<\/p>\n chkconfig –add redis Start the redis service with command below. You can use command redis-cli ping<\/strong> to check if it works properly. If you get a result PONG it means redis is working.<\/p>\n \/etc\/init.d\/redis start<\/p><\/blockquote>\n To know more about the command and it’s options use redis-cli –help<\/strong>.<\/p>\n Install Redis PHP Extension<\/em><\/strong><\/p>\n Redis PHP extension is installed by performing couple of commands.<\/p>\n pecl install redis<\/p><\/blockquote>\n Open the server’s php.ini file & add extension=redis.so<\/strong> to it. You can get the server’s php.ini file with command php -i | grep php.ini<\/strong>. Restart apache (your web server) & you are done.<\/p>\n","protected":false},"excerpt":{"rendered":" What Is Redis ? Redis is an BSD licensed, open source, advanced key-value cache and store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets, sorted sets, bitmaps and hyperloglogs. Refer redis.io\/topics\/introduction to know more about Redis.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-1881","post","type-post","status-publish","format-standard","placeholder-for-hentry","category-howtos"],"yoast_head":"\n
\nwget http:\/\/download.redis.io\/releases\/redis-2.8.12.tar.gz
\ntar -xvzf redis-2.8.12.tar.gz
\ncd redis-2.8.12
\nmake
\ncp src\/redis-server \/usr\/local\/bin
\ncp src\/redis-cli \/usr\/local\/bin
\nmkdir -p \/etc\/redis
\nmkdir -p \/var\/redis
\ncp redis.conf \/etc\/redis\/redis.conf<\/p><\/blockquote>\n
\nport 6379
\nbind 127.0.0.1
\ndir \/var\/redis\/
\nlogfile \/var\/log\/redis.log
\npidfile \/var\/run\/redis.pid<\/p><\/blockquote>\n
\n#
\n# redis – this script starts and stops the redis-server daemon
\n#
\n# chkconfig: – 85 15
\n# description: Redis is a persistent key-value database
\n# processname: redis-server
\n# config: \/etc\/redis\/redis.conf
\n# config: \/etc\/sysconfig\/redis
\n# pidfile: \/var\/run\/redis.pid<\/p>\n
\n. \/etc\/rc.d\/init.d\/functions<\/p>\n
\n. \/etc\/sysconfig\/network<\/p>\n
\n[ “$NETWORKING” = “no” ] && exit 0<\/p>\n
\nprog=$(basename $redis)<\/p>\n
\n[ -x $redis ] || exit 5
\n[ -f $REDIS_CONF_FILE ] || exit 6
\necho -n $”Starting $prog: ”
\ndaemon $redis $REDIS_CONF_FILE
\nretval=$?
\necho
\n[ $retval -eq 0 ] && touch $lockfile
\nreturn $retval
\n}<\/p>\n
\necho -n $”Stopping $prog: ”
\nkillproc $prog -QUIT
\nretval=$?
\necho
\n[ $retval -eq 0 ] && rm -f $lockfile
\nreturn $retval
\n}<\/p>\n
\nstop
\nstart
\n}<\/p>\n
\necho -n $”Reloading $prog: ”
\nkillproc $redis -HUP
\nRETVAL=$?
\necho
\n}<\/p>\n
\nrestart
\n}<\/p>\n
\nstatus $prog
\n}<\/p>\n
\nrh_status >\/dev\/null 2>&1
\n}<\/p>\n
\nstart)
\nrh_status_q && exit 0
\n$1
\n;;
\nstop)
\nrh_status_q || exit 0
\n$1
\n;;
\nrestart|configtest)
\n$1
\n;;
\nreload)
\nrh_status_q || exit 7
\n$1
\n;;
\nforce-reload)
\nforce_reload
\n;;
\nstatus)
\nrh_status
\n;;
\ncondrestart|try-restart)
\nrh_status_q || exit 0
\n;;
\n*)
\necho $”Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}”
\nexit 2
\nesac<\/p><\/blockquote>\n
\nchkconfig redis on<\/p><\/blockquote>\n