Book Image

Apache Superset Quick Start Guide

By : Shashank Shekhar
Book Image

Apache Superset Quick Start Guide

By: Shashank Shekhar

Overview of this book

Apache Superset is a modern, open source, enterprise-ready business intelligence (BI) web application. With the help of this book, you will see how Superset integrates with popular databases like Postgres, Google BigQuery, Snowflake, and MySQL. You will learn to create real time data visualizations and dashboards on modern web browsers for your organization using Superset. First, we look at the fundamentals of Superset, and then get it up and running. You'll go through the requisite installation, configuration, and deployment. Then, we will discuss different columnar data types, analytics, and the visualizations available. You'll also see the security tools available to the administrator to keep your data safe. You will learn how to visualize relationships as graphs instead of coordinates on plain orthogonal axes. This will help you when you upload your own entity relationship dataset and analyze the dataset in new, different ways. You will also see how to analyze geographical regions by working with location data. Finally, we cover a set of tutorials on dashboard designs frequently used by analysts, business intelligence professionals, and developers.
Table of Contents (10 chapters)

Flask-AppBuilder permissions

Superset uses the Flask-AppBuilder framework to store metadata required for permissions in Superset. Every time a Flask-AppBuilder app is initialized, permissions and views are automatically created for the Admin role. When multiple concurrent workers are started by Gunicorn, they might lead to contention and race conditions between the workers trying to write to one metadata database table.

The automatic updating of permissions in the metadata database can be disabled by setting the value of the SUPERSET_UPDATE_PERMS environment variable to zero. It is one or enabled by default:

export SUPERSET_UPDATE_PERMS=1 superset init
# Make sure superset init is called before Superset starts with a new metadata database
export SUPERSET_UPDATE_PERMS=0 gunicorn -w 10 … superset:app