Overpass API developpement

[Yemmy . O <>]

Roland Olbricht <roland.olbricht@...> writes:

> 
> Dear all,
> 
> in the last weeks the server overpass-api.de has seen a flood of extra 
> requests. Unfortunately, most of these requests have been from a few 
> clumsy clients.
> 
> The standard pattern has been apparently a server that fires as much 
> requests as possible, often some or most of them syntactically correct, 
> but semantically nonsense. For example, from one IP adress was sent the 
> same query for objects with name "Lipkenskothen" every 5 seconds (It is 
> very unlikely that these few results change more often than once per 
> month, hence a frequency of once per day would be more than enough).
> 
> While I may block such extreme cases with "iptables" (i.e., the server 
> then appears unreachable from that IP), I would like to avoid manual 
> blocking as much as possible. Beside the quite hard challenge of being 
> unbiased in blocking decisions, it is also a lot of annoying work.
> 
> For that purpose I have changed the quota calculation. I will uphold the 
> basic rule that a client shall not send more than one request in 
> parallel from an IP. For the other details, I'm trying an A/B-strategy 
> for traffic management, hence they may change quite often at the moment.
> 
> If you encounter a serious service degradation, in particular sustaining 
> HTTP 429 responses, please contact me by mail such that I can adjust the 
> algorithm to make fewer or no false positives.
> 
> Cheers,
> 
> Roland
> 
> 




Hi, Roland. Keep up the good work.
Please is there a way we can find out if our IP address has been blocked by
the server. As we have not received any http 429 error. But all we are
getting is : "connection refused" and "Network is unreachable" after making
a request  such as -
http://overpass-api.de/api/interpreter?data=is_in(6.44119,3.40272);out; to
the server.

It used to work until few days back. 
A timely and helpful response would be highly appreciated.

Regards.
Yemmy .O