creating rdds let' look at some little code snippets of actually creating rddsand think it will all start to make little bit more sense creating an rdd using python list the following is very simple exampleovnt qbsbmmfmj[ if just want to make an rdd out of plain old python listi can call the qbsbmmfmj[ function in spark that will convert list of stuffin this casejust the numbers into an rdd object called ovnt that is the simplest case of creating an rddjust from hard-coded list of stuff that list could come from anywhereit doesn' have to be hard-coded eitherbut that kind of defeats the purpose of big data meanif have to load the entire dataset into memory before can create an rdd from itwhat' the pointloading an rdd from text file can also load an rdd from text fileand that could be anywhere tdufyu'jmf gjmf  vtfstgsbolhpct ufyuuyuin this examplei have giant text file that' the entire encyclopedia or something ' reading that from my local disk herebut could also use if want to host this file on distributed amazons bucketor hdfs if want to refer to data that' stored on distributed hdfs cluster (that stands for hadoop distributed file system if you're not familiar with hdfswhen you're dealing with big data and working with hadoop clusterusually that' where your data will live that line of code will actually convert every line of that text file into its own row in an rdd soyou can think of the rdd as database of rowsandin this exampleit will load up my text file into an rdd where every lineevery rowcontains one line of text can then do further processing in that rdd to parse or break out the delimiters in that data but that' where start from