Garbage Collection of Persistent Objects

[tmagrino]

Right now, Fabric does not clean up persistent objects that have "effectively" become garbage on the store. Examples include internal objects like LinkedList nodes.

I believe @liujed has done some work related to this focusing on referential integrity. I think there's also some literature on distributed garbage collection that is probably relevant to this issue.

[andrewcmyers]

A starting point would be just to provide a direct "delete" operation so applicaitions can clean up persistent objects directly. Obviously there are some security implications.