You can apply transformations on RDD's inside Dstreams using transform or any number of operations.
Regards Mayur Mayur Rustagi Ph: +1 (760) 203 3257 http://www.sigmoidanalytics.com @mayur_rustagi <https://twitter.com/mayur_rustagi> On Fri, Jun 20, 2014 at 2:16 PM, Shrikar archak <shrika...@gmail.com> wrote: > Hi All, > > I was curious to know which of the two approach is better for doing > analytics using spark streaming. Lets say we want to add some metadata to > the stream which is being processed like sentiment, tags etc and then > perform some analytics using these added metadata. > > 1) Is it ok to make a http call and add some extra information to the > stream being processed in the updateByKeyAndWindow operations. > > 2) Add these sentiment/tags before and then stream through DStreams. > > Thanks, > Shrikar > >