In the mean time, cache cleanup routines have been defined that allow some level of automatic cleanup after errant user processes. We have talked some about persistent vs non-persistent files in the cache. But after the initial setup, Nexus gets out of the way. It's just a socket. However, this approach will work only in a threaded implementation, since the user's write to the pipe would block if the pipe buffer fills up.
Stages Implement the above APIs.
Conduct performance and reliability studies. The Condor approach may have difficulties. They grab an open call, and then remap it to an rpc. This means we may have namespace collision problems on some machines. Paradyn may work on some machines.