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From:   Chuck Lever III <chuck.lever@oracle.com>
To:     Steve Dickson <steved@redhat.com>
CC:     Bruce Fields <bfields@fieldses.org>,
        Linux NFS Mailing List <linux-nfs@vger.kernel.org>,
        Dai Ngo <dai.ngo@oracle.com>,
        Olga Kornievskaia <olga.kornievskaia@gmail.com>
Subject: Re: server-to-server copy by default
Thread-Topic: server-to-server copy by default
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Date:   Wed, 20 Oct 2021 17:51:06 +0000
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> On Oct 20, 2021, at 1:24 PM, Steve Dickson <steved@redhat.com> wrote:
>=20
> Hey!
>=20
> On 10/20/21 12:00, Chuck Lever III wrote:
>>> On Oct 20, 2021, at 11:54 AM, J. Bruce Fields <bfields@fieldses.org> wr=
ote:
>>>=20
>>> knfsd has supported server-to-server copy for a couple years (since
>>> 5.5).  You have set a module parameter to enable it.  I'm getting asked
>>> when we could turn that parameter on by default.
>>>=20
>>> I've got a couple vague criteria: one just general maturity, the other =
a
>>> security question:
>>>=20
>>> 1. General maturity: the only reports I recall seeing are from testers.
>>> Is anyone using this?  Does it work for them?  Do they find a benefit?
>>> Maybe we could turn it on by default in one distro (Fedora?) and promot=
e
>>> it a little and see what that turns up?
>=20
>> But wrt the maturity question, is the work finished? Or,
>> perhaps a better question is do we have a minimum viable
>> product here that can be enabled, or is more work needed
>> to meet even that bar?
> I've been testing it and it seems to be pretty solid.

Well I was more interested in knowing if the capability
is in a state where it is now useful to users rather
than just being a prototype for a new protocol element.

Along with having tests that QE teams can run, we probably
also need to know whether there is adequate documentation.


--
Chuck Lever