Mongodb用的是可以熱備份的mongodump和對應恢復的mongorestore,在linux下面使用shell指令碼寫的定時備份，程式碼如下

1.定時備份

#!/bin/bash
sourcepath='/usr'/bin   #mongodump命令所在路徑
targetpath='/var/lib/mongo/mongobak'   #備份存放位置
nowtime=$(date +%Y%m%d)
 
start()
{
  ${sourcepath}/mongodump -u username -p password -d dbname --host 127.0.0.1 --port 27017 --out ${targetpath}/${nowtime}
}
execute()
{
  start
  if [ $? -eq 0 ]
  then
    echo "back successfully!"
  else
    echo "back failure!"
  fi
}
 
if [ ! -d "${targetpath}/${nowtime}/" ]
then
 mkdir ${targetpath}/${nowtime}
fi
execute
echo "============== back end ${nowtime} =============="
 

#!/bin/bash
targetpath='/var/lib/mongo/mongobak'
nowtime=$(date -d '-7 days' "+%Y%m%d")
if [ -d "${targetpath}/${nowtime}/" ]
then
  rm -rf "${targetpath}/${nowtime}/"
  echo "=======${targetpath}/${nowtime}/===刪除完畢=="
fi
echo "===$nowtime ==="

微軟公司授時主機(美國)     time.windows.com
臺警大授時中心(臺灣)        asia.pool.ntp.org
中科院授時中心(西安)        210.72.145.44
網通授時中心(北京)           219.158.14.130
呼叫同步：  ntpdate asia.pool.ntp.org

4.設定上面指令碼許可權和定時任務

許可權:chmod +x filename
定時任務:crontab -e

10 04 * * * /shell/mongobak.sh 1>/var/log/crontab_mongo_back.log &
10 02 * * * /shell/mongobakdelete.sh 1>/var/log/crontab_mongo_delete.log &

參考文章：

http://www.cnblogs.com/tangnie/p/3148782.html

http://blog.csdn.net/moqiang02/article/details/37762101