Lost collections!

[erin]

Hi 

I am running into a problem that: the files in /data look intact, but we lost collections when connect to the database. There should be more than 10 collections but now they are gone, but the datafiles still in the /data folder.

I checked the log file there isn't any suspicious activity.

Can someone help?

Thanks

[Rhys Campbell]

First I'd check permissions on those files and then I'd confirm you have started the db server with the correct dbpath.

You can check the db path value inside mongo with...

db.adminCommand("getCmdLineOpts")

Linux or Windows. Which version of MongoDB?

[Rhys Campbell]

Just an additional thought...

When you connect to the mongo shell do you execute a use database statement first... i.e.

mongo> use mydb;

mongo> show collections;