Set Spark home variable

If you are using the Spark client from the Cloudera or Hortonworks Hadoop distributions, you may also receive the following log error:

Exception in thread "main" java.lang.NoSuchFieldError: TOKEN_KIND

If you received this log error, you must also complete the following steps for your Hadoop distribution:

1. Download the Spark client for your Hadoop cluster distribution (Cloudera or Hortonworks).
2. Navigate to the adaptive-execution/config directory and open the application.properties file.
3. Set the sparkHome location to where Spark 2 is located on your machine.

Example for Cloudera:

**sparkhome** = /opt/cloudera/parcels/SPARK2/lib/spark2

Example for Hortonworks:

**sparkhome** =/opt/horton/SPARK2/lib/spark2