Database with same name created in mongodb?

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database

MongoDB

I found that database with a same that already exists can be created, thus databases with the same names causes problems when I need to specify which databases I want to use.

Here is how it happens:

1. I already have a database, with name "test1",which only stores collections with documents.
2. Then, I use it to store files using GridFS so it contains binary files.(Actually, I think this could be the cause, but I have no idea why)
3. And now problem happens. When I try to access "test1" using command like `use test1`. An empty database with the same name "test1" will be created.

Like what `show dbs` demonstrates:

test1 empty
test1 0.0625GB

I am using mongodb 2.0.5

Any hint on why this happens, since common sense will show that db with the same name cannot coexist? And any solution?