Re: [nfsv4] Review of 3530bis "Multi-Server Namespace" Chapter

[James Lentini <[e-mail]>]

On Wed, 13 Oct 2010, Thomas Haynes wrote:

> Rob and Dave,
> 
> There is a question for each of you below.
> 
> 
> On Sep 22, 2010, at 6:31 PM, James Lentini wrote:
> 
<snip>
> 
>       For the write-verifier class in Section 7.7.7, Section 7.9.1
>       recommends assuming file system instances are of a different
>       class in the case of a failover. Is there a recommendation for 
>       the NFS4ERR_MOVED case? I realize that the recommendations in 
            ^^^^^^^^^^^^^
            referral


To clarify my question: Is there a recommendation for the 
write-verifier class in the referral case?

The "general" rules for the handle class, fileid class, and change 
class cover the replication, migration, and referral cases. Since 
those rules immediately precede the write-verifier rules, the omission 
of a referral case jumped out at me.

I expect the recommendation would be for the client to treat the 
referral source and referral target as being in different 
write-verifier classes given that the write-verifier class doesn't 
apply to the referral case, but the text doesn't say that.



>       7.9.1 are taken almost verbatim from RFC 5661, but it seems 
>       that there is a case missing here.
> 
> Rob, any comment here?