DDOS part II
March 16, 2010
The free web services are timing out at the hour precisely for a short moment of some seconds. The reason is a widget that calls the services timezoneJSON and findNearByWeatherJSON always at exactly the full hour from a large number of ip addresses. The sudden spike in requests is causing many other requests to timeout. Around a year ago the free services were suffering from the effects of an iphone application that has become very popular and was using some geonames web services.
Some hours ago we have changed the service to throw an exception hoping that the developer of the widget will see that the application no longer works and change the behavior of the application. It is not very useful if a distributed application running on a huge number of clients is calling the same server at the very same instance.
The exception is thrown on the domain ws.geonames.org for requests of the two JSON services and if no parameter username is present. If you happen to be using the service, just add the parameter username=<your geonames username> avoid the exception. Those using a ‘secret’ domain name are not affected. You can create an account here.