These questions would be better addressed to the Spark Cassandra Connector mailing list, which can be found here: https://github.com/datastax/spark-cassandra-connector/#community
Thanks, Carl On Tue, Mar 3, 2015 at 4:42 AM, Pavel Velikhov <pavel.velik...@gmail.com> wrote: > Hi, is there a paper or a document where one can read how Spark reads > Cassandra data in parallel? And how it writes data back from RDDs? Its a > bit hard to have a clear picture in mind. > > Thank you, > Pavel Velikhov > > On Mar 3, 2015, at 1:08 AM, Rumph, Frens Jan <m...@frensjan.nl> wrote: > > Hi all, > > I didn't find the *issues* button on > https://github.com/datastax/spark-cassandra-connector/ so posting here. > > Any one have an idea why token ranges are grouped into one partition per > executor? I expected at least one per core. Any suggestions on how to work > around this? Doing a repartition is way to expensive as I just want more > partitions for parallelism, not reshuffle ... > > Thanks in advance! > Frens Jan > > >
