[OpenAFS] Re: AFSDB records

[Jeffrey Altman]

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On 5/4/2010 2:57 PM, Andrew Deason wrote:
> So, if you do this:
>=20
> fs newcell cell.name.foo 0.0.0.0
>=20
> That client should use DNS lookups for dbserver information from then
> on, assuming it was started with -afsdb. If it was not started with
> -afsdb, that cell will become inaccessible until the client is
> restarted, or you provide a dbserver list with 'fs newcell' again.
>=20
> This seems a bit odd, though useful. Should we document this? Or should=

> we prevent this behavior, and perhaps create a new command / option to
> clear the host list for a cell?

I think that we should add a -usedns switch to request the use of dns
srv / afsdb records.  It should return a failure if the cache manager
was not started with afsdb support active.

Anyone that is deploying DNS AFSDB records should also deploy DNS SRV
records as documented in http://www.rfc-editor.org/rfc/rfc5864.txt
as DNS SRV records are superceding AFSDB records in current and future
releases of OpenAFS.

Jeffrey Altman



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