Re: Desktop freeze on NFS share failure

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On 08/16/2015 07:01 AM, Rex Dieter wrote:
Emmett Culley wrote:

Why does the desktop freeze whenever an NFS share fails?  I have set all
NFS mounts to soft,intr and yet, if I forget to unmount a share before
taking down the NFS server, my desktop freezes.

Luckily I have Yakauke running, so I can at least get to a console.  But
of course the NFS mount cannot be umounted if it doesn't respond.

Also I assumed the setting shares to intr, soft would prevent other
software from hanging if the share stops responding.  Is that not so?  Or
is there another setting I am not aware of?

Any ideas how to prevent this from happening?


It not *that* different to when a (mounted) disk stops working.  I'd
recommend focusing on simply avoiding that situation.

I assume that you were referring to local (physical) disks.

Regardless, I disagree: Failure happens and software should at least *attempt* to be resilient.

If I'm asking Konqueror or Dolphin to access a broken mount (local or network) then I understand if it hangs (though that could be avoided too, even if it just displays a "loading" indicator since it obviously can't get any further).

But for general operations I would expect that nothing should hang. This is a solvable problem, and suggesting that people should avoid hung mounts isn't helpful given that usually (this particular situation excepted) they are totally unavoidable. A hung desktop is never acceptable.

-Adam Batkin
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