Web socket status is closing or closed when inserting data

Hi there,

Im new with meteor. I have a problem when inserting data to mongoDB.
the data is approximately 100.000 - 112.000 rows.

While inserting, I want to know how much rows that has inserted, so I count in mongoDB and the result is just 109 but the inserting process still continuing, and at the same time, I also look at the browser console, and it show the error Websocket status is closing or closed.

Do you guys have any idea for this??