This may be more efficient if you know you are not changing the values in you flatMap.
Complete this builder instance with a CompoundStore.
Complete this builder instance with a CompoundStore. At this point, the Summingbird job can be executed on Storm or Hadoop.
Complete this builder instance with a MergeableStore.
Complete this builder instance with a MergeableStore. At this point, the Summingbird job can be executed on Storm.
Complete this builder instance with a BatchStore.
Complete this builder instance with a BatchStore. At this point, the Summingbird job can be executed on Hadoop.
Set's an Option on all nodes ABOVE this point