documentation

I am trying to learn Spark and it has been going well so far, except for problems where I need to use functions like reduceByKey or combineByKey on a pair RDD whose values are lists. I have been trying to find detailed documentation for these functions, that could explain what the arguments actually are, so that I could solve it myself without going to Stack Overflow, but I just cannot find any good documentation for Spark. I have read chapters 3 and 4 from Learning Spark, but to be honest, the explanations for the most complicated functions are very bad. The problem I am dealing with right

Good evening. I'm developing an android application that uses Facebook SDK. I've no problem with user oauth authentication and I've no problem using the SDK to add a simple status update on the user wall. Now I'm trying to use more deeply this Facebook Android SDK and I found a really big lack about documentation. At the moment I'm using this snippet of code to add the user status: Bundle params = new Bundle(); params.putString("message", "my message"); params.putString("link", "my site url" ); params.putString("name", "my name"); params.putString("caption", "my caption" ); mAsyncRunner