incorrect value for meetings number (maxed at 20)

[vsefer]

Instead

mongo --quiet mongodb://127.0.1.1:27017/meteor --eval "db.meetings.find()" | grep "meetingEnded\" : false," | wc -l

you should use

mongo --quiet mongodb://127.0.1.1:27017/meteor --eval "DBQuery.shellBatchSize = 100000; db.meetings.find()" | grep "meetingEnded\" : false," | wc -l

Mongo will show 20 rows only by default, so you will never see more than 20 meetings.