HI ,

We have started RnD on Apache Spark to use its features such as Spark-SQL & 
Spark Streaming. I have two Pain points , can anyone of you address them which 
are as follows:

1.       Does spark allow us the feature to fetch updated items after an RDD 
has been mapped and schema has been applied? Or every time while running the 
query we have to perform RDD Mapping and Apply schema? In this case I am using 
hbase tables to map the RDD.

2.       Spark-SQL provides better performance when used with Hive or Hbase?


Thanks,
Siddharth Ubale,
Synchronized Communications
#43, Velankani Tech Park, Block No. II,
3rd Floor, Electronic City Phase I,
Bangalore – 560 100
Tel : +91 80 3202 4060
Web: www.syncoms.com<http://www.syncoms.com/>
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