[MOBY-dev] URGENT: Attention ALL SERVICE PROVIDERS

[Paul Gordon]

I think the idea behind the multiple attempts in case (3) is that the 
Web server might be down, or the page temporarily unavailable due to 
resource problems (e.g. forgot to mount the Web server disk :-)).  To 
make these more consistent, maybe I'd only retry fetching the RDF if the 
server could not be contacted, or if it returned a 5XX HTTP code.  
Ortherwise treat it as case (5)?

Martin Senger wrote:

>Mark,
>   I found the agent's behaviour description slightly inconsistent in one 
>place (perhaps agent is not inconsistent, perhaps it is only the 
>description, I have not tested the agent itself):
>
>  
>
>>The agent runs on a cron, and behaves as follows:
>>...
>>3)  If it doesn't find a valid RDF file there, then it flags an error;
>>after a certain number of errors your service(s) will be deregistered.
>>...
>>5)  If it expects to find a service signature in this RDF, and can't
>>find it, it concludes that the service has been taken off-line, and it
>>will de-register that service.
>>
>>    
>>
>   So: if there is no file at all, it will try several times before
>de-registering the service. But if there is any RDF file but without my
>service, it will de-register it immediatelly. Why does it not behave the
>same in these two cases? In reality, it would mean slightly different
>behaviour when I am adding my first service (so the RDF file with all my
>services does not exist yes) and when I am adding the second and more 
>services (when the RDF file exists - havig my previous services - but it 
>still does not have my last one).
>
>   Regards,
>   Martin
>
>  
>