[root@searchapp
mongodb]# mongodump -d newDB -o /usr/mongodb/backup
connected
to: 127.0.0.1
DATABASE:
newDB to /usr/mongodb/backup/newDB
newDB.test to
/usr/mongodb/backup/newDB/test.bson
1 objects
newDB.system.indexes to
/usr/mongodb/backup/newDB/system.indexes.bson
1 objects
>
db.dropDatabase()
{
"dropped" : "newDB", "ok" : 1 }
>
show dbs
admin
fileSize
local
test
>
exit
bye
-- 콘솔에서 MongoRestore 를 사용해 Restore 를 합니다.
[root@searchapp
bin]# mongorestore -d newDB --drop /usr/mongodb/backup/newDB/
connected
to: 127.0.0.1
Tue
Jan 25 20:51:24 /usr/mongodb/backup/newDB/test.bson
Tue
Jan 25 20:51:24 going into namespace
[newDB.test]
Tue
Jan 25 20:51:24 dropping
Tue
Jan 25 20:51:24 1 objects found
Tue
Jan 25 20:51:24 /usr/mongodb/backup/newDB/system.indexes.bson
Tue
Jan 25 20:51:24 going into namespace
[newDB.system.indexes]
Tue
Jan 25 20:51:24 dropping
Tue
Jan 25 20:51:25 1 objects found
-- 접속해서 보면 복원되어 있습니다.
[root@searchapp
bin]# mongo
MongoDB
shell version: 1.6.5
connecting
to: test
>
show dbs
admin
fileSize
local
newDB
test
3. 특정시점의 데이터 백업
--- Fsync 를 통해서 insert 를 하지 않도록 하고
>
use admin switched
to db admin >
db.runCommand({"fsync":1, "lock":1}) { "info" : "now locked
against writes, use db.$cmd.sys.unlock.findOne() to unlock", "ok" : 1 } >
use newDB switched
to db newDB >
show collections system.indexes test >
db.test.insert({"name":"Koon", age:37}) > -- 외부에서 콘솔을 열고... 몽고로 들어가서 "db.$cmd.sys.unlock.findOne()" 를 가볍게 실행해주면... admin에서 Lock 이 풀립니다. Fsync 는 MSSQL의 Checkpoint 와 유사한 개념입니다. (기능)
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