Restore a mongo DB from a compose.io backup?

Question

If you download a compose.io backup of a mongodb instance and uncompress the .tar file you end up with .ns and extensions that are single digits. How do you restore the db from these?

Answer 1

The .ns .0 .1 etc. files are the data files themselves.

This the raw db you can mongodump those files and then mongorestore as always:

This solution would work pre mongo 3.0, but --dbpath is no longer supported by mongodump.

Mongo 3.0 Solution:

1. Run mongod --dbpath ./ from the directory with the extracted download with the .ns files.
2. Run mongodump -d [DBNAME] -o [DIR TO DUMP TO] ...options are not required.
3. Proceed with a mongorestore as normal