Here is a new Zeppelin notebook, part of the Hortonworks Gallery on Github, which can be used as a template for analysing web server log files using Spark and Zeppelin. This notebook was ported from an original Jupyter notebook that was part of an EDX online course: "Introduction to Apache Spark", sponsored by Databricks. It is written using "pyspark", the Python interpreter for Spark.
You can import this notebook into your own instance of Zeppelin using the "Import Note" button on the home page. Then use the URL below add paste it into the "Add from URL" box.
Here is the URL link to the actual Zeppelin notebook (note.json) on hortonworks-gallery: