Re: linux-image: on nfs4 server: RPC: AUTH_GSS upcall timed out Please check user daemon is running

[Daniel Kahn Gillmor <dkg@fifthhorseman.net>]

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On 12/08/2011 12:45 PM, J. Bruce Fields wrote:
> Yes, if you're using NFSv4 then the client and server should each run
> both daemons.

ah, thanks.

>> If so, what functionality am i losing out on by not running it?
> 
> You lose NFSv4.0 delegations, which depend on the ability for the server
> to contact the client to send delegation recalls.  Delegations are
> optional, so you won't lose correctness, but you may lose some
> performance.

Thanks, that's useful.  Do the clients need to run cachefilesd as well
to take advantage of delegation?  Is there a document where i could find
this sort of information without adding noise to the list?

> If you're using only v2, v3, or v4.1, that doesn't matter.  (v2 and v3
> lack delegations, and v4.1 sends callbacks over existing
> client-established connections).

OK, gotcha.  Is it possible to use 4.1 with linux kernel 3.1 and
nfs-utils 1.2.5, or would i need to pull a more recent version?

Thanks, and sorry for the basic questions,

	--dkg


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