Just to be clear, I'm referring to having Spark reading from a file, not from a Hive table. And it will have tungsten engine off heap serialization after 2.1, so if it was a test with like 1.63 it won't be as helpful.
On Mon, Aug 28, 2017 at 10:50 AM, Michael Artz <michaelea...@gmail.com> wrote: > Hi, > There isn't any good source to answer the question if Hive as an > SQL-On-Hadoop engine just as fast as Spark SQL now? I just want to know if > there has been a comparison done lately for HiveQL vs Spark SQL on Spark > versions 2.1 or later. I have a large ETL process, with many table joins > and some string manipulation. I don't think anyone has done this kind of > testing in a while. With Hive LLAP being so performant, I am trying to > make the case for using Spark and some of the architects are light on > experience so they are scared of Scala. > > Thanks >
