mongodump 备份

规划

副本集，其中加了个隐藏节点，用来做备份，所以备份脚本直接在隐藏节点做，目前数据不大，直接本机磁盘存储，后续如果数据集大，那么在本地存最近一天的备份，远程根据需求存储几天的备份

创建备份用户

db.createUser(

{

user: "backup",

pwd: "password",

roles: [ "backup" ]

}

)

备份脚本

#!/bin/bash
PATH=$PATH:/usr/local/mongodb/bin
export PATH
port=27017
user="backup"
password="password"
backup_home="/data/backup"
backup_date="`date +"%Y%m%d"`"
backup_dir="/data/backup/$backup_date"
mongodump --port=$port  -u $user -p $password  --oplog  --out=$backup_dir --gzip

find $backup_home -mtime +2 -type d -exec rm -rf {} \;

定时任务

echo "22 21 * * * /usr/local/mongodb/backup_mongod.sh 2>&1 >/dev/null" >> /var/spool/cron/root