@Matt I'm not 100% sure swapping was the problem here. Modified all of the flows to avoid getting big queues... and bumped the swap threshold to 40000 and we're still experiencing disk growth + unknown file on reboot... I did notice something weird : some of the flows have their "error" or "failure" sending back to themselves instead of auto-termination. Not sure if this is a good practice or not and that it could contribute to the problem? ... View more