The following post describes about how to take a backups database and restores. Database dump is very important as part of maintain database.

Backup Database: 

 #  mongodump --host=localhost --db linuxfaqdb --out /tmp/linuxfaqdb


or

Save your database at current date and time in tmp/ directory,



# mongodump --host=192.168.1.50 --db linuxfaqdb --out tmp/`date +"%Y_%m_%d__"`linuxfaqdb



....

....

2015-11-21T07:25:32.817-0500    writing linuxfaqdb.linuxfaq to linuxfaqdbdb/linuxfaqdb/linuxfaq.bson

2015-11-21T07:25:32.822-0500    writing linuxfaqdb.linuxfaq metadata to linuxfaqdbdb/linuxfaqdb/linuxfaq.metadata.json

2015-11-21T07:25:32.824-0500    done dumping linuxfaqdb.linuxfaq (3 documents)


Restore Database:

The following command to restore database into it.



# mongorestore --host=192.168.1.50 --db linuxfaqdb /root/2015_12_03__linuxfaqdb/linuxfaqdb





2015-12-03T07:19:29.556-0500    finished restoring linuxfaqdb.data (2 documents)

....

2015-12-03T07:19:38.237-0500    [###################.....]  linuxfaqdb.mydata  16.5 MB/19.8 MB  (83.2%)

2015-12-03T07:19:40.620-0500    restoring indexes for collection linuxfaqdb.mydata from metadata

2015-12-03T07:19:41.085-0500    finished restoring linuxfaqdb.mydata (84094 documents)

2015-12-03T07:19:41.085-0500    done



sh.enablesharedings("linuxfaqdb")

{ "ok": 1 }

Import Specific Table :


# mongoimport --db linuxfaqdb --collection topics --file /root/2015_12_03__linuxfaqdb/linuxfaqdb/topics.metadata.json 



2015-12-03T07:52:14.265-0500    connected to: localhost

2015-12-03T07:52:14.278-0500    imported 1 document