Book Image

Distributed Data Systems with Azure Databricks

By : Alan Bernardo Palacio
Book Image

Distributed Data Systems with Azure Databricks

By: Alan Bernardo Palacio

Overview of this book

Microsoft Azure Databricks helps you to harness the power of distributed computing and apply it to create robust data pipelines, along with training and deploying machine learning and deep learning models. Databricks' advanced features enable developers to process, transform, and explore data. Distributed Data Systems with Azure Databricks will help you to put your knowledge of Databricks to work to create big data pipelines. The book provides a hands-on approach to implementing Azure Databricks and its associated methodologies that will make you productive in no time. Complete with detailed explanations of essential concepts, practical examples, and self-assessment questions, you’ll begin with a quick introduction to Databricks core functionalities, before performing distributed model training and inference using TensorFlow and Spark MLlib. As you advance, you’ll explore MLflow Model Serving on Azure Databricks and implement distributed training pipelines using HorovodRunner in Databricks. Finally, you’ll discover how to transform, use, and obtain insights from massive amounts of data to train predictive models and create entire fully working data pipelines. By the end of this MS Azure book, you’ll have gained a solid understanding of how to work with Databricks to create and manage an entire big data pipeline.
Table of Contents (17 chapters)
1
Section 1: Introducing Databricks
4
Section 2: Data Pipelines with Databricks
9
Section 3: Machine and Deep Learning with Databricks

Scheduling jobs with Azure Databricks

If we already know that the file we want to process will be delivered to the blob storage, we can directly schedule the notebook to run periodically. To do this, we can use Azure Databricks jobs, which is an easy way to schedule the runs of our notebooks. We will suppose now that the file path of the file we will consume is fixed.

Scheduling a notebook as a job

The steps are as follows:

  1. To schedule a new job, click on the Jobs tab in the left ribbon of our workspace and then click on Create Job, as illustrated in the following screenshot:

    Figure 3.34 – Creating an Azure Databricks job

  2. After this, the rest is quite straightforward. We will be required to specify which notebook we will use, set up an execution schedule, and specify the computational resources we will use to execute the job. In this case, we have chosen to run the job in an existing cluster, but we can create a dedicated cluster for specific executions. We...