MongoDB集群备份简介：
基于mongodb 副本机+分片的架构进行全库备份。
[[email protected] scripts]# cat mongodb_backup.sh
#!/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/mysql/bin:/usr/local/mongodb/bin:/usr/local/mongodb/bin
export PATH
export LANG=en_US.utf8
Dbip="192.168.100.10"
Dport="30000"
Datetime=$(date +%Y-%m-%d_%H_%M_%S)
Logfile="/backup/mongodb/mongodbbak_10010/backmongo.log"
Dblist="$(echo ‘show dbs‘|/usr/local/mongodb/bin/mongo --host ${Dbip} --port ${Dport} |egrep -v "MongoDB|connecting|bye"|awk ‘{print$1}‘)"
echo -e "=======start for database backup `date +%F‘ ‘%T‘ ‘%u`=======\n" >>$Logfile
backdbcmd(){
echo "$(date) backup $dbname"
/usr/local/mongodb/bin/mongodump --host ${Dbip} --port ${Dport} --db ${dbname} --out /backup/mongodb/mongodbbak_10010/${Datetime}
echo -e "$(date) Done.\n"
}
for dbname in $Dblist
do
echo -e "--------$dbname--------\n" >>$Logfile
backdbcmd >>$Logfile 2>&1
done
恢复整个库：
需要指定上一级目录，并且删除config目录
/usr/local/mongodb/bin/mongorestore --port=30000 --dir=/home/mongodb/2016-07-28_00_12_05 --writeConcern=‘{w:0,wtimeout:200}‘ --numParallelCollections=8 --numInsertionWorkersPerCollection=10 --stopOnError -v --drop