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From: Xuefu Zhang [mailto:xzh...@cloudera.com]
Sent: 01 February 2016 03:05
To: user@hive.ap
For Hive on Spark, there is a startup cost. The second run should be
faster. More importantly, it looks like you have 18 map tasks but only your
cluster only runs two of them at a time. Thus, you cluster is basically
having only two way parallelism. If you configure your cluster to give more
capaci
Hi,
* Spark 1.5.2 on Hive 1.2.1
* Hive 1.2.1 on Spark 1.3.1
* Oracle Release 11.2.0.1.0
* Hadoop 2.6
I am running spark-sql using Hive metastore and I am pleasantly surprised by
the speed by which Spark performs certain queries on Hive tables.
I import
