[OpenIndiana-discuss] NFS hidden files

[Gabriele Bulfon]

I understand your point.
But, my question is...shouldn't a network filesystem try to completely emulate a local file system,
trying to hide as much as possible the fact of being a network share?
In this case, how does a local filesystem like ZFS or UFS manage these situations?
Local file systems do not create .xxx files, and they never show up even in the situations you describe.
So, why NFS should be different? I believe that the NFS server may hold this files for himself and
the processes that already have opened sessions on them, not showing them in folder listings
(as zfs can do with its .zfs folder).
Also, is it correct by the file system to allow deletion of a file opened by someone else?
For example, an "rm -r folder" will fail in case I have a bash inside it's tree.
I believe an option to hide them would do no harm.
Thx anyway
Gabriele.
----------------------------------------------------------------------------------
Da: James Carlson
A: Discussion list for OpenIndiana
Data: 5 giugno 2012 13.15.25 CEST
Oggetto: Re: [OpenIndiana-discuss] NFS hidden files
Gabriele Bulfon wrote:
Hi,
On NFS mounted file systems I often happen to find daemons of the client complaining about the hidden .nfsxxx files appearing and disappearing.
These are often annoying.
Is there any way to let the server completely hide these files to the client, and just keep them on the server file system for his own duties?
No.  They represent files that have been removed and are being held open
on the client.  They're a required part of NFS to provide UNIX file
semantics, and the whole point of them is that they're *NOT* hidden from
the client.  They wouldn't work at all if they were hidden.
Close the file, and the problem should go away, as the server will then
remove the .nfs file.
It's possible that if the system crashes, the files could be abandoned.
I suspect that's rarely the case.  But you could use a cron job to find
them if you were concerned about it.
Have you tried a google search on ".nfs files"?
--
James Carlson         42.703N 71.076W
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