redis安装，配置

一)下载源码，编译安装

# wget http://redis.googlecode.com/files/redis-2.2.8.tar.gz
# tar xf redis-2.2.8.tar.gz
# cd redis
# make
# 网上说不能make install,可我这就是可以，奇怪，省去了手动copy redis命令的步骤
# make install

make install后显示

cd src && make install
make[1]: Entering directory `/usr/local/src/redis-2.2.8/src'
cd ../deps/hiredis && make static ARCH=""
make[2]: Entering directory `/usr/local/src/redis-2.2.8/deps/hiredis'
make[2]: Nothing to be done for `static'.
make[2]: Leaving directory `/usr/local/src/redis-2.2.8/deps/hiredis'
cd ../deps/linenoise && make ARCH=""
make[2]: Entering directory `/usr/local/src/redis-2.2.8/deps/linenoise'
make[2]: `linenoise_example' is up to date.
make[2]: Leaving directory `/usr/local/src/redis-2.2.8/deps/linenoise'
cd ../deps/hiredis && make static
make[2]: Entering directory `/usr/local/src/redis-2.2.8/deps/hiredis'
make[2]: Nothing to be done for `static'.
make[2]: Leaving directory `/usr/local/src/redis-2.2.8/deps/hiredis'
cc -o redis-benchmark -std=c99 -pedantic -O2 -Wall -W   -lm -pthread   -g -rdynamic -ggdb  ae.o anet.o redis-benchmark.o sds.o adlist.o zmalloc.o ../deps/hiredis/libhiredis.a
cc -o redis-cli -std=c99 -pedantic -O2 -Wall -W   -lm -pthread   -g -rdynamic -ggdb  anet.o sds.o adlist.o redis-cli.o zmalloc.o release.o ../deps/hiredis/libhiredis.a ../deps/linenoise/linenoise.o

Hint: To run 'make test' is a good idea ;)

mkdir -p /usr/local/bin
cp -p redis-server /usr/local/bin
cp -p redis-benchmark /usr/local/bin
cp -p redis-cli /usr/local/bin
cp -p redis-check-dump /usr/local/bin
cp -p redis-check-aof /usr/local/bin
make[1]: Leaving directory `/usr/local/src/redis-2.2.8/src'

二)修改配置

修改配置之前，请将redis.conf copy一份到/etc/目录下

daemonize no

改成

daemonize yes

这两个参数

loglevel warning
logfile /var/log/redis.log

取消注释

syslog-enabled no #这个改成syslog-enabled yes
syslog-facility local0

数据文件目录

# The working directory.
#
# The DB will be written inside this directory, with the filename specified
# above using the 'dbfilename' configuration directive.
#
# Also the Append Only File will be created inside this directory.
#
# Note that you must specify a directory here, not a file name.
dir /var/db/redis

内存，连接数设置

maxmemory 256000000
maxclients 500

三)启动脚本

#!/bin/bash
#
# Init file for redis
#
# chkconfig: - 80 12
# description: redis daemon
#
# processname: redis
# config: /etc/redis.conf
# pidfile: /var/run/redis.pid

. /etc/init.d/functions

BIN="/usr/local/bin"
CONFIG="/etc/redis.conf"
PIDFILE="/var/run/redis.pid"

### Read configuration
[ -r "$SYSCONFIG" ] && source "$SYSCONFIG"

RETVAL=0
prog="redis-server"
desc="Redis Server"

start() {

        if [ -e $PIDFILE ];then
             echo "$desc already running...."
             exit 1
        fi

        echo -n $"Starting $desc: "
        daemon $BIN/$prog $CONFIG

        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog
        return $RETVAL
}

stop() {
        echo -n $"Stop $desc: "
        killproc $prog
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog $PIDFILE
        return $RETVAL
}

restart() {
        stop
        start
}


case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  restart)
        restart
        ;;
  condrestart)
        [ -e /var/lock/subsys/$prog ] && restart
        RETVAL=$?
        ;;
  status)
        status $prog
        RETVAL=$?
        ;;
   *)
echo $"Usage: $0 {start|stop|restart|condrestart|status}"
        RETVAL=1
esac

exit $RETVAL

配置启动脚本

#chmod 755 /etc/init.d/redis
# chkconfig --add redis
# chkconfig redis on

四)启动

在正式启动redis之前，先创建数据目录

# mkdir /var/db/redis

否则会出现下面的错误

[3030] 27 May 16:50:38 # Can't chdir to '/var/db/redis': No such file or directory

同时配置内核参数

sysctl vm.overcommit_memory=1

否则提示错误

# WARNING overcommit_memory is set to 0! Background save may fail under low memory condition.
#To fix this issue
#add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command
#'sysctl vm.overcommit_memory=1' for this to take effect.

最后，启动

[root@web ~]# /etc/init.d/redis start
Starting Redis Server:                                     [  OK  ]

PS:不利用脚本启动，关闭redis的命令

启动
# redis-server /etc/redis.conf

关闭
# redis-cli shutdown

关闭某个端口上的redis
# redis-cli -p port shutdown