The question is as basic as it is simple... How do you log all queries in a "tail"able log file in mongodb?
I have tried:
The /var/log/mongodb/mongodb.log keeps showing just the current number of active connections...
You can log all queries:
$ mongo
MongoDB shell version: 2.4.9
connecting to: test
> use myDb
switched to db myDb
> db.getProfilingLevel()
0
> db.setProfilingLevel(2)
{ "was" : 0, "slowms" : 1, "ok" : 1 }
> db.getProfilingLevel()
2
> db.system.profile.find().pretty()
Source: http://docs.mongodb.org/manual/reference/method/db.setProfilingLevel/
db.setProfilingLevel(2)
means "log all operations".