We have Spark installed via Cloudera Manager on a YARN cluster. It appears there is a classpath.txt file in /etc/spark/conf that include list of jars that should be available on spark's distributed classpath. And spark-env.sh seems to be the on that's exporting this configuration. 

It is my understanding that cloudera manager creates the classpath.txt file. I would like how does cloudera manger evaluate the list of jars that go into this file, and is it something that can be controlled through cloudera manager.

Thank you!