> > That's not the way state recovery works. Clients will reopen only > the files that are still in use. If the clients don't open the > "zombie" files again, then I'm fairly certain the applications > have already closed those files. Hi In the case of my test script , I know that the files were not closed explicitly or on script termination. ( script terminated without credentials ) . By the time my session re-acquired credentials ( intentionally after process termination) , the process was already terminated and nothing, on the client, would ever attempt to clean-up the server-side "zombie open files" The server-side pool usage caused by my intentionally bad test script was not freed up until I did the cluster resource migration. Question: When a simple app (for example a python script ) on the NFS client simply opens a text file, is a lease automatically, behind the scenes, created on the server. If so, is the server responsible for doing this: If the lease isn't renewed every N minutes, close the file. By "simply opens" a text file, I mean that: the script contains no code to request or in any way explicitly use locks Thanks