Ben Rockwood wrote: > To be clear, its not cleaning up the files that concerns me, but > creating them at all.
The files need to be created, in order to emulate the expected behaviour where open files remain accessible after unlinking, with the file being removed only on "last close". An NFSv3 server cannot support this, since there is no open/close in v3, and it's hard in v4, so we handle this on the client with the .nfsXXXX rename mechanism. The root cause of these files left lying around might be that something deleted the file whilst it was open, but the app that had it open crashed before it could close it (or the client crashed). It's not clear why you see this more on one system than another, but I imagine it's down to configuration of your mail systems. Traditionally, mail stores and NFS don't make good companions, of course. cheers, calum.
