I Have a mongo shard db system with two shards and and three mongos servers.My application creates DB on daily basis as per our business requirements. We have some sharded collection in each day DB.
I removed some old DB using db.dropDatabse(). Now when i connect to mongos server and run show dbs these databases are not there but when i check config database it still has entries for these database in in different collections. Like database,changelog,chunk
Could you please tell me how i can permanently delete these database