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Working with Structured Streaming Data using Autoloader

5 Scenarios
2 Hours 20 Minutes
masterclass poster
Industry
general
Skills
approach
data-understanding
data-wrangling
stream-etl
data-storage
Tools
databricks
spark

Learning Objectives

Understand the key concepts of Structured Streaming and its components for building streaming pipelines.
Learn how to ensure data reliability with state management, checkpointing, and Write-Ahead Log (WAL).
Learn how to use Autoloader to process large datasets with schema evolution support.
Understand trigger modes (micro-batch, continuous) and how they impact streaming performance.
Learn about output modes (append, complete, update)

Overview

This module starts with building reliable streaming pipelines using Databricks' Structured Streaming. It highlights techniques to handle data reliability, such as state management, checkpointing, Write-Ahead Log (WAL), and ensuring exactly-once processing. The importance of handling schema evolution dynamically is discussed, with a focus on using Autoloader to efficiently process streaming data while accommodating schema changes.

Additionally, it covers trigger modes (micro-batch, continuous) to control processing frequency and output modes (append, complete, update) to define how results are stored. Key features like fault tolerance, real-time data processing, and scalability for large datasets are also addressed to enhance pipeline efficiency and robustness.

Prerequisites

  • Basic understanding of streaming data processing and pipelines
  • Familiarity with Databricks and cloud data lakes
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