Validate the Spark Environment

After validating the backend repository, you must check that the Spark analytics machine is running properly.

Go to $SPARK_HOME/sbin, and make sure Spark is running.
```
$ start-master.sh
```
Check the status.
```
$ jps
```
Check that Spark UI is available on port 8080 on the master server. For troubleshooting, refer to [install-guide:].
Check if all zoran z-scripts/files exist within the directory: /opt/zoran/python-3.6/bin/.