[OpenAFS] GiveUpAllCallBacks callers

[Derrick Brashear]

On Wed, Dec 15, 2010 at 10:02 AM,  <omalleys@msu.edu> wrote:
>
>> We're not proposing making a change to the client which causes it to start
>> triggering these bugs - I think this is just a distraction. We know that
>> people should upgrade - we don't make stable releases for the good of our
>> health. But the fact is that for various reasons, people don't upgrade their
>> servers nearly as often as they should.
>
> The server needs to safely handle/refuse all unsupported client requests as
> they could be malicious.
>
> There was a "feature request" a number of years ago to do "client
> versioning" so the administrator of the cell could give warnings, or refuse
> connections based on the client version/platform (too new, too old or buggy
> version) to help prevent this situation. Logs would be both on the client
> and the server. The client owner would have some warning and see something
> in their logs and the AFS administrator would have logs/usage stats and
> could more easily track down people to tell them to upgrade their systems
> and at least verify "mission critical" systems are not going to be adversely
> affected.
>
> One reason why no one wants to upgrade. If you upgrade, you break the 1.2
> version of the client which just happens to be what the now VP of the
> company used to write a web interface client and no one has bothered to
> upgrade it. You don't even know since that is "top-secret" information. Or
> you hear "oh yeah yeah it is next on the agenda to upgrade" for 2 years or
> maybe even a "oh yeah we did it." then after the upgrade you get "oh you
> meant -that- machine? We don't touch that at all". You need a procedure and
> stats to back you up or else you might as well be in prison picking up bars
> of soap in the shower.

Er. A 1.2 client is compatible, still. Hell. A Transarc 3.3a client is
compatible, if you put modern aklog on it.


-- 
Derrick