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From Michael Artz <>
Subject Re: Spark SQL vs HiveQL
Date Mon, 28 Aug 2017 17:25:01 GMT
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 <>

> 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

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