Thanks for getting back to me daschl.
For a bit more context our application is built on the Play framework and Akka actors. This code is part of an actor we use as glue between the Couchbase SDK and the rest of our system. Lots of requests seem to causing a pile up somewhere in the flow. Possibly we are exhausting a thread pool somewhere (quite likely one of ours instead of one of yours) and I’m trying to eliminate possible suspects. I need to spend a bit of time quantifying if this actually a performance degradation vs the way we were operating before using the 1.x SDK and I will try and get you an actual code example once I clear it with my team lead.