(re-post from Content Analysis Forum as it appear to be unmonitored)
We've been trying to test the Content Analysis service but are finding in many case we gets "results": null' as the response. In some cases, attempting the same query a few minutes later we'll actually get data about the submitted URL, but in the bulk of (admittedly a small sample of ~ 20 URLs tested) we will keep getting "results":null. (This includes common URLs such as 'http://www.msn.com', 'http://developer.yahoo.com')
Is the service actually working?
If this is not a limitation;
is there a reason for null results (when the given URLs are accessible online)?
is there a reason that data sometimes becomes available in a re-query?
is this service 'production ready', or should it be considered 'unstable'?
EG, even running a simple query like "select * from contentanalysis.analyze where url='http://yahoo.com'" was returning "results":null (now it's returning "an error has occurred".
When you get results:null, it only means that the query is being processed and if you try the request after some delay you will get a response back. The way it works is that when you attempt a request and the data is already not in cache the request is queued and you get an empty response back.