Google's servers are designed to handle a fairly significant load.  In  
fact, at Google I/O last week, they revealed that their servers are  
processing upwards of 4 billion requests related to their various APIs  
on any given day.  So I don't think the problem is that you're  
overwhelming the server.  Rather, it would be good to know what  
service you are trying to use.  For instance, the Maps API's geocoder  
service has a rate limit of 15,000 queries per IP per day.  While they  
will allow small bursts, this is quota is actually prorated, meaning  
that they actually expect you to make no more than 1 geocode request  
per about 6 seconds.  If you exceed the limit, the service returns a  
620 error, saying that the service is unavailable.

Jeremy R. Geerdes
Effective website design & development
Des Moines, IA

For more information or a project quote:
http://jgeerdes.home.mchsi.com
http://jgeerdes.blogspot.com
http://jgeerdes.wordpress.com
[email protected]

Unless otherwise noted, any price quotes contained within this  
communication are given in US dollars.

If you're in the Des Moines, IA, area, check out Debra Heights  
Wesleyan Church!

And check out my blog, Adventures in Web Development, at 
http://jgeerdes.blogspot.com 
  !


On Jun 3, 2009, at 12:42 PM, pp wrote:

>
> Hi,
>
> When we use the rest method of sending a url request and getting the
> response back, the server sometimes gives a message "Service
> unavailable" and then for a couple of hours, we are unable to get any
> response and then it works again.
>
> If we are using it heavily, do we need to pay for it (Or do we need to
> pay to ensure that we get uninterrupted service).
>
> Do let us know and what would be the pricing if it is paid service.
> thank you
>
> cheers
> PP
>
> >


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