Database connection is not persistant.

[robertg]

For some reason, after 30-40 minutes, the nodejs server needs a restart because it lost connection to the db. find a way to fix this:

[robertg]

Maybe restart the connection?

http://stackoverflow.com/questions/10873199/how-to-handle-mongoose-db-connection-interruptions

Look at:

http://stackoverflow.com/questions/11608397/mongoose-model-find-hangs-when-not-connected-to-database?rq=1

[robertg]

More research suggests this is an issue with the server actually disconnecting from the network.