install redis properly

ref:http://redis.io/topics/quickstart

make -j8 && make test && make install 

mkdir /etc/redis
mkdir /var/redis
cp utils/redis_init_script /etc/init.d/redis_6379
#to modify head lines if centos
vi /etc/init.d/redis_6379

#!/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

MakesuretomodifyREDIS_PORTaccordinglytotheportyouareusing.Boththepidfilepathandtheconfigurationfilenamedependontheportnumber.

Copythetemplateconfigurationfileyou'llfindintherootdirectoryoftheRedisdistributioninto/etc/redis/usingtheportnumberasname,forinstance:

cp redis.conf /etc/redis/6379.conf

Createadirectoryinside/var/redisthatwillworkasdataandworkingdirectoryforthisRedisinstance:

mkdir /var/redis/6379
vi /etc/redis/6379.conf

## port 6379 example
daemonize yes
pidfile /var/run/redis_6379.pid
port 6379
loglevel warning
logfile /var/log/redis_6379.log 
dir /var/redis/6379

Edittheconfigurationfile,makingsuretoperformthefollowingchanges:

Setdaemonizetoyes(bydefaultitissettono).

Setthepidfileto/var/run/redis_6379.pid(modifytheportifneeded).

Changetheportaccordingly.Inourexampleitisnotneededasthedefaultportisalready6379.

Setyourpreferredloglevel.

Setthelogfileto/var/log/redis_6379.log

Setthedirto/var/redis/6379(veryimportantstep!)

FinallyaddthenewRedisinitscripttoallthedefaultrunlevelsusingthefollowingcommand:

#update-rc.d redis_6379 defaults  for ubuntu
chkconfig redis_6379 on
/etc/init.d/redis_6379 start