database crashed (out of disk space) yesterday, then I restarted it. I see nothing loged in the log
file since the crash.

See my actions below:
Set up sharding:oracle@dw07orl57 > mongo
MongoDB shell version: 2.0.3
connecting to: test
mongos> use admin
switched to db admin
mongos> show dbs
config 0.1875GB
gis_db 1.953125GB
mongos> use gis_db
switched to db gis_db
mongos> db.dropdatabase()
Fri Mar 9 10:29:57 TypeError: db.dropdatabase is not a function (shell):1
mongos> db.dropDatabase()

{ "assertion" : "collection's metadata is undergoing changes. Please try again.", "assertionCode" : 13331, "errmsg" : "db assertion failure", "ok" : 0 } mongos> db.dropDatabase() { "dropped" : "gis_db", "ok" : 1 }

mongos> show dbs
config 0.1875GB
gis_db 1.953125GB