Hi Vedrin,

thanks for the info.
Concerning your feature request...the question is, if a service that is
not available is able to give such a response. If the service is, e.g.
not available because of server maintenance, it will most probable not
be able to give such a response. But in cases where, e.g. just a
database back-end is not reachable/available, such a message might make
sense. I even think it would be a very helpful and user-friendly thing
to have.

Regards,
Tobias


On Wed, 2010-06-30 at 13:21 +0300, Vedrin Jeliazkov wrote: 
> Hi Tobias,
> 
> Since you've been asking, I wanted to notify you that the maintenance
> of ambit.uni-plovdiv.bg has finished at 12:45 EEST and the OT services
> hosted there are available again.
> 
> Kind regards,
> Vedrin
> 
> PS: I also submitted a feature request to Nina yesterday (to be
> further discussed with other developers), which would enable OT
> services to respond with some configurable message when they're not
> available for some known reason. This might work as follows:
> 
> 1) A privileged user (authenticated and authorized by AA) sends a POST
> with the aforementioned user-friendly message, which as a side effect
> also initiates the maintenance mode of the given service. Some
> additional parameters (like duration of the maintenance) might be
> handy.
> 
> 2) While in maintenance mode, the service returns the aforementioned
> user-friendly message to _any_ request it receives, instead of further
> processing it.
> 
> 3) When maintenance is over, the service switches back to normal
> (full) operating mode. This could happen either because the configured
> maintenance period has finished or as a consequence of another request
> (POST?) sent by the privileged user, instructing the service to switch
> to full operating mode.
> 
> What do you think?

-- 
Dipl.-Bioinf. Tobias Girschick

Technische Universität München
Institut für Informatik
Lehrstuhl I12 - Bioinformatik
Bolzmannstr. 3
85748 Garching b. München, Germany

Room: MI 01.09.042
Phone: +49 (89) 289-18002
Email: tobias.girschick at in.tum.de
Web: http://wwwkramer.in.tum.de/girschick