Initializing sparkContext
Hi, When trying to run the main I realized that when creating the SparkCOntext you need a master URL in order to initialize it, I was wondering what does this field do and what should we put for this initialization, this is the Error I came across : ERROR SparkContext: Error initializing SparkContext. and is the appName field that we need to pass as argument also something important or is it a simple name for our context? Thanks