標籤:服務指令碼 /proc 提升 編譯 make href dubbo exe http
Redis使用的Demo範例建議可以參考下這個課程《基於Dubbo的分布式系統架構實戰》
IP:192.168.4.111
環境:CentOS 6.6
Redis版本:redis-3.0 (考慮到Redis3.0在叢集和效能提升方面的特性,rc版為正式版的候選版,而且很快就出正式版)
安裝目錄:/usr/local/redis
使用者:root
編譯和安裝所需的包:
# yum install gcc tcl
下載3.0版Redis(當前最新版redis-3.0.0-rc5.tar.gz,請學員們在安裝時自行選用最新版)
# cd /usr/local/src
# wget https://github.com/antirez/redis/archive/3.0.0-rc5.tar.gz
建立安裝目錄:
# mkdir /usr/local/redis
解壓:
# tar -zxvf 3.0.0-rc5.tar.gz
# mv redis-3.0.0-rc5 redis3.0
# cd redis3.0
安裝(使用PREFIX指定安裝目錄):
# make PREFIX=/usr/local/redis install
安裝完成後,可以看到/usr/local/redis目錄下有一個bin目錄,bin目錄裡就是redis的命令指令碼:
redis-benchmark redis-check-aof redis-check-dump redis-cli redis-server
將Redis配置成服務:
按上面的操作步驟,Redis的啟動指令碼為:/usr/local/src/redis3.0/utils/redis_init_script
將啟動指令碼複製到/etc/rc.d/init.d/目錄下,並命名為redis:
# cp /usr/local/src/redis3.0/utils/redis_init_script /etc/rc.d/init.d/redis
編輯/etc/rc.d/init.d/redis,修改相應配置,使之能註冊成為服務:
# vi /etc/rc.d/init.d/redis
#!/bin/sh
#
# Simple Redis init.d script conceived to work on Linux systems
# as it does use of the /proc filesystem.
REDISPORT=6379
EXEC=/usr/local/bin/redis-server
CLIEXEC=/usr/local/bin/redis-cli
PIDFILE=/var/run/redis_${REDISPORT}.pid
CONF="/etc/redis/${REDISPORT}.conf"
case "$1" in
start)
if [ -f $PIDFILE ]
then
echo "$PIDFILE exists, process is already running or crashed"
else
echo "Starting Redis server..."
$EXEC $CONF
fi
;;
stop)
if [ ! -f $PIDFILE ]
then
echo "$PIDFILE does not exist, process is not running"
else
PID=$(cat $PIDFILE)
echo "Stopping ..."
$CLIEXEC -p $REDISPORT shutdown
while [ -x /proc/${PID} ]
do
echo "Waiting for Redis to shutdown ..."
sleep 1
done
echo "Redis stopped"
fi
;;
*)
echo "Please use start or stop as first argument"
;;
esac
查看以上redis服務指令碼,關註標為橙色的幾個屬性,做如下幾個修改的準備:
(1) 在指令碼的第一行後面添加一行內容如下:
#chkconfig: 2345 80 90
(如果不添加上面的內容,在註冊服務時會提示:service redis does not support chkconfig)
(2) REDISPORT連接埠保持6379不變;(注意,連接埠名將與下面的設定檔名有關)
(3) EXEC=/usr/local/bin/redis-server改為 EXEC=/usr/local/redis/bin/redis-server
(4) CLIEXEC=/usr/local/bin/redis-cli 改為CLIEXEC=/usr/local/redis/bin/redis-cli
(5) 設定檔設定:
建立redis設定檔目錄
# mkdir /usr/local/redis/conf
複製redis設定檔/usr/local/src/redis3.0/redis.conf到/usr/local/redis/conf目錄並按連接埠號碼重新命名為6379.conf
# cp /usr/local/src/redis3.0/redis.conf /usr/local/redis/conf/6379.conf
做了以上準備後,再對CONF屬性作如下調整:
CONF="/etc/redis/${REDISPORT}.conf" 改為 CONF="/usr/local/redis/conf/${REDISPORT}.conf"
(6) 更改redis開啟的命令,以後台啟動並執行方式執行:
$EXEC $CONF & #“&”作用是將服務轉到後面運行
修改後的/etc/rc.d/init.d/redis服務指令碼內容為:
#!/bin/sh
#chkconfig: 2345 80 90
#
# Simple Redis init.d script conceived to work on Linux systems
# as it does use of the /proc filesystem.
REDISPORT=6379
EXEC=/usr/local/redis/bin/redis-server
CLIEXEC=/usr/local/redis/bin/redis-cli
PIDFILE=/var/run/redis_${REDISPORT}.pid
CONF="/usr/local/redis/conf/${REDISPORT}.conf"
case "$1" in
start)
if [ -f $PIDFILE ]
then
echo "$PIDFILE exists, process is already running or crashed"
else
echo "Starting Redis server..."
$EXEC $CONF &
fi
;;
stop)
if [ ! -f $PIDFILE ]
then
echo "$PIDFILE does not exist, process is not running"
else
PID=$(cat $PIDFILE)
echo "Stopping ..."
$CLIEXEC -p $REDISPORT shutdown
while [ -x /proc/${PID} ]
do
echo "Waiting for Redis to shutdown ..."
sleep 1
done
echo "Redis stopped"
fi
;;
*)
echo "Please use start or stop as first argument"
;;
esac
以上配置操作完成後,便可將Redis註冊成為服務:
# chkconfig --add redis
防火牆中開啟對應的連接埠
# vi /etc/sysconfig/iptables
添加:
-A INPUT -m state --state NEW -m tcp -p tcp --dport 6379 -j ACCEPT
重啟防火牆:
# service iptables restart
修改redis設定檔設定:
# vi /usr/local/redis/conf/6379.conf
修改如下配置
daemonize no 改為> daemonize yes
pidfile /var/run/redis.pid 改為> pidfile /var/run/redis_6379.pid
啟動Redis服務
# service redis start
將Redis添加到環境變數中:
# vi /etc/profile
在最後添加以下內容:
## Redis env
export PATH=$PATH:/usr/local/redis/bin
使配置生效:
# source /etc/profile
現在就可以直接使用redis-cli等redis命令了:
關閉Redis服務
# service redis stop
預設情況下,Redis開啟安全認證,可以通過/usr/local/redis/conf/6379.conf的requirepass指定一個驗證密碼。
Redis的安裝與使用