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Date:   Wed, 28 Aug 2019 10:40:31 -0400
From:   "J. Bruce Fields" <bfields@redhat.com>
To:     Jeff Layton <jlayton@redhat.com>
Cc:     Chuck Lever <chuck.lever@oracle.com>,
        Bruce Fields <bfields@fieldses.org>,
        Trond Myklebust <trondmy@hammerspace.com>,
        Linux NFS Mailing List <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH 0/3] Handling NFSv3 I/O errors in knfsd
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On Wed, Aug 28, 2019 at 10:16:09AM -0400, Jeff Layton wrote:
> For the most part, these sorts of errors tend to be rare. If it turns
> out to be a problem we could consider moving the verifier into
> svc_export or something?

As Trond says, this isn't really a server implementation issue, it's a
protocol issue.  If a client detects when to resend writes by storing a
single verifier per server, then returning different verifiers from
writes to different exports will have it resending every time it writes
to one export then another.

--b.