[OpenAFS] Strange DNS SRV traffic resulting from stat() in 1.8.13.2

[Jeffrey Altman]

Reply inline=20

> On Aug 26, 2025, at 9:04=E2=80=AFAM, Ryan C. Underwood =
<nemesis-lists@icequake.net> wrote:
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> Hi Jeffrey:
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> On Fri, Aug 22, 2025 at 01:08:25PM -0400, Jeffrey Altman wrote:
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>> What is the version of Ubuntu and most importantly, what is the =
kernel version?
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> Ubuntu 25.04 with kernel 6.14
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>> Unless the afsd dynamic root functionality is disabled, DNS SRV or =
DNS AFSDB queries would be expected if the cache manager=E2=80=99s =
CellServDB does not contain a list of database servers for the cell =
=E2=80=9Cice quake.net=E2=80=9D.  In particular we would expect to see a =
DNS SRV query for  :_afs3-vlserver._udp.icequake.net and if that query =
failed, then a fallback query for DNS AFSDB =E2=80=9Cicequake.net=E2=80=9D=
.   Those queries are not present in the above trace.  As far as I can =
tell there are neither DNS SRV nor DNS AFSDB records published for ice =
quake.net.
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> Those records are there and haven't been changed in a very long time:
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> [=E2=80=A6]

> How did you test that led to the conclusion that there are no such =
records?

Indeed they are and I can see them now.  =20

I tested two ways.  First, by use of =E2=80=9Cvos eachvl -cell =
icequake.net=E2=80=9D.   Second, by entering the queries into nslookup.

It=E2=80=99s possible I mistyped the domain name or that the hotel =
network I was on blocked the SRV and AFSDB queries.

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>> What else changed between when 1.8.10 was installed and 1.8.13.2?
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> Just the recent ubuntu distribution upgrade and regular package
> upgrades.  It's hard to contain all the variables on this particular
> system since it's a daily driver.

Understood.

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>> I am curious if you experience the same behavior problems with the =
AuriStorFS client.  If you do, that is a strong indication that the =
problem is external to OpenAFS.
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> Never used it but happy to take a look.

I will send details later today.

Jeffrey Altman