database dataSize in mongodb

Question

With following command, I can get the data size of a specific collection:

db.collection.dataSize() 

How do I get the datasize of a database?

Answer 1

Use following command at mongoshell:

 db.stats() 

Output should be like this:

{   "collections" : 3,   "objects" : 80614,   "dataSize" : 21069700,   "storageSize" : 39845376,   "numExtents" : 9,   "indexes" : 2,   "indexSize" : 6012928,   "ok" : 1 } 

See more diagnostic command here.