Hi,
I'm trying to "clean" an address column in my database using LocationExtractor.
On using the LocationExtractor node, I keep encountering the error (after a few minutes of executing a few hundred rows):
Execute failed: ws.palladian.retrieval.HttpException: Exception org.apache.http.NoHttpResponseException: The target server failed to respond for URL "http://api.geonames.org/search?name_equals=<search string>=FULL&username=<username>": The target server failed to respond
I've sorted my workflow to run only 2,000 inquiries per execution so that the process will not exceed the hourly limit of the server.
If i understood the error message correctly, it seems that the web service lagged on one of the queries hence the failure to respond.
Has anyone found a workaround for this? I'm trying to look for patterns on the instances that the errors occured but could not find any. The error is repeatable but the rows on which the errors occur are random. Hence, problem could be server-side.
I'm thinking of prolonging the "timeout" so the node will not fail even if the target server lags, but I don't know how to do it, or if it's even possible in knime.
I haven't explored all nodes yet, but there must be a way to make a continuous workflow around this even with errors/server lags.
Your help will be greatly appreciated.