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"Henry B. Hotz" <hotz@jpl.nasa.gov> writes:

> At 1:07 AM +0200 6/3/03, Love wrote:
>>"Greg A. Woods" <woods@weird.com> writes:
>>
>>>  It is never "right" for an application to cache DNS information and th=
us
>>>  it is never "right" for an application to need the DNS TTL values.
>>
>>When the application is something that implements a filesystem, I would s=
ay
>>its never "right" to query the DNS server for ever request to the
>>fileserver. Thus, you want to cache in the application.
>
> The CellServDB stores IP numbers so I guess this is moot for AFS, but
> not for network file systems in general.

AFS clients, both arla and openafs can use AFSDB-rr, that requires DNS.

> Does Arla back up to DNS lookup for file servers or only for Kerberos
> servers?  If so does it requery DNS when the connection fails?

Arla currently only uses DNS TTL to figure out when to refetch information.
I guess we should try to refetch DNS information when vldb server isn't
there.

Love

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