Problem:
I'm inserting a bunch of data and seeign different results from mongostat depending on what I connect to.

Configuration is
– single mongos
– single replset, with a single mongod
– single config

If I connect to the mongos with mongostat I see the following reported

vero:10gen$ ./software/mongodb-osx-x86_64-1.6.0/bin/mongostat --port 27500 --host ec2-67-202-19-63.compute-1.amazonaws.com
connected to: ec2-67-202-19-63.compute-1.amazonaws.com:27500
insert/s query/s update/s delete/s getmore/s command/s mapped vsize res faults/s locked % idx miss % conn time
3 0 0 0 0 3 0 166 14 0 0 0 3 17:17:27
2 0 0 0 0 1 0 166 14 0 0 0 3 17:17:28
2 0 0 0 0 2 0 166 14 0 0 0 3 17:17:29

However, if I connect to the single mongod I see the following

insert/s query/s update/s delete/s getmore/s command/s flushes/s mapped vsize res faults/s locked % idx miss % q t|r|w conn time
16327 0 0 0 0 3 0 8349 8633 5743 0 32.9 0 0|0|0 8 17:18:16
16383 0 0 0 0 2 0 8349 8633 5747 0 29.5 0 0|0|0 8 17:18:17
13617 0 0 0 0 3 0 8349 8633 5743 0 42 0 0|0|0 8 17:18:18
10867 0 0 0 0 3 0 8349 8633 5747 0 28.2 0 0|0|0 8 17:18:19

These latter figures match the I see from doing a db.collection.count()

Reproduce:

• Setup the following
  • one config server
  • one replset, with a single mongod
  • one config server

• Start a bulk insert through the mongos
• run mongostat on the mongos
• run mongostat on the mongod
• compair the results

Business Case:

• User Expereince