Mongodb 在Centos7下配置开机自启动

设置开机启动需要如下几个步骤：

1. 编写配置脚本 [** vim /etc/init.d/mongodb** ]

#!/bin/sh
#
# Simple mongodb init.d script conceived to work on Linux systems
# as it does use of the /proc filesystem.
#chkconfig: 2345 80 90
#description:auto_run
MONGODBPORT=27000
EXEC=/usr/local/bin/mongodb/bin/mongod
PIDFILE=/usr/local/bin/mongodb/mongodb.pid
CONF="/usr/local/bin/mongodb/mongodb.conf"
OPTIONS="--config $CONF" 
case "$1" in
    start)
                echo "Starting mongodb server..."
        $EXEC $OPTIONS
        ;;
    stop)
        if [ ! -f $PIDFILE ]
        then
                echo "$PIDFILE does not exist, process is not running"
else
                PID=$(cat $PIDFILE)
                echo "Stopping ..."
                $CLIEXEC -p $MONGODBPORT shutdown
                while [ -x /proc/${PID} ]
                do
                    echo "Waiting for mongodb to shutdown ..."
                    sleep 1
                done
                echo "mongodb stopped"
        fi
        ;;
    *)
        echo "Please use start or stop as first argument"
        ;;
esac

2. 修改mongodb.conf,打开后台运行选项

storage:
   dbPath: /usr/local/bin/mongodb/data/db
   journal:
      enabled: true

net:
   bindIp: 127.0.0.1
   port: 27017

processManagement:
   fork: true
   pidFilePath: /usr/local/bin/mongodb/mongodb.pid
systemLog:
   destination: file
   path: "/usr/local/bin/mongodb/mongodb.log"
   logAppend: true

3. 修改文件执行权限

chmod +x /etc/init.d/mongodb

4. 设置开机启动

# 尝试启动或停止 mongodb
service mongodb start
service mongodb stop
# 开启服务自启动
chkconfig mongodb on

5.异常处理
A. 执行 [ service mongodb start ] 提示服务不支持 chkconfig，在开机脚本前添加如下内容:

#chkconfig: 2345 80 90
#description:auto_run

B. 如果在Windows下编辑的开机脚本，由于Windows中的换行符为CRLF, 而Unix(或Linux)换行符为LF，会导致开机脚本执行报错,把脚本通过notepad++转化为Unix格式。