Load generator sometimes pauses for up to 5 minutes

[watson]

Every once in a while the load generator stops sending requests to the opbeans-node container. Restarting the app inside the container doesn't fix it and the app is still accepting requests, but for some reason the load generator just doesn't send any requests to it.

Then all of a sudden after about 5 minutes, the load generator picks up from where it stopped and starts sending requests again at a normal rate.