semi join spark streaming

[Chen Song <ch...@gmail.com>]

Is there a easy way to do semi join in spark streaming?

Here is my problem briefly, I have a DStream that will generate a set of
values. I would like to check the existence in this set in other DStreams.

Is there a easy and standard way to model this problem. If not, can I write
spark streaming job to load the set of values from disk and cache to each
worker?

-- 
Chen Song