How significant is a single WU?

WU loss is a burden to the distributed computing system, but it is the very nature of DC which mandates that WUs will get lost - DC clients will come and go all the time and take some WUs with them.

It is better for the FAH DC that each assigned WU will get back to the servers, but if not then after some time (deadline) the WU will get assigned to someone else and science can still go on.

Reference Links