Data Quality and Debugging for Reliable Pipelines
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Data Quality and Debugging for Reliable Pipelines
This course is part of Open source Data Engineering with Spark, dbt & Airflow Professional Certificate
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What you'll learn
Define and automate data quality tests using YAML to validate row counts, null thresholds, and uniqueness across pipeline datasets.
Trace data anomalies through pipeline stages by analyzing logs and dashboards to identify and fix the exact source of failure.
Apply advanced Python debugging tools β including conditional breakpoints, watchpoints, and pdb β to diagnose and resolve pipeline issues.
Resolve complex concurrency bugs by reading stack traces and correlating thread logs to identify deadlocks and race conditions in code.
Skills you'll gain
Tools you'll learn
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March 2026
See how employees at top companies are mastering in-demand skills
Build your Data Analysis expertise
- Learn new concepts from industry experts
- Gain a foundational understanding of a subject or tool
- Develop job-relevant skills with hands-on projects
- Earn a shareable career certificate from Coursera
There are 8 modules in this course
You'll build the diagnostic and preventive skills that keep data pipelines trustworthy and production-ready. In this course, you'll learn to define automated data quality tests, trace anomalies back to their source, and apply advanced Python debugging techniques to resolve complex pipeline failures β three capabilities that employers consistently seek in data engineering roles.
What sets this course apart is its end-to-end, practical focus: you won't just learn what data quality means β you'll write YAML test suites, navigate monitoring dashboards, analyze stack traces, and step through live code with debugging tools. Each skill builds toward a complete picture of pipeline reliability, from prevention to detection to resolution. By the end, you'll be equipped to catch data issues before they reach downstream consumers, communicate root causes clearly, and ship more dependable data products.
You will establish foundational understanding of data quality frameworks and define systematic approaches to testing data integrity through volume, completeness, and uniqueness validation.
What's included
3 videos1 reading1 assignment
3 videosβ’Total 15 minutes
- Why Data Quality Frameworks Prevent Million-Dollar Pipeline Failuresβ’2 minutes
- Essential Components of Data Quality Frameworksβ’7 minutes
- Implementing Basic Data Quality Tests with SQLβ’6 minutes
1 readingβ’Total 8 minutes
- Data Quality Testing Patterns and Implementation Strategiesβ’8 minutes
1 assignmentβ’Total 3 minutes
- Data Quality Framework Foundation Knowledge Checkβ’3 minutes
You will implement automated data quality testing using YAML configuration and industry-standard tools to create production-ready validation systems with quality gates and monitoring capabilities.
What's included
2 videos3 readings2 assignments1 ungraded lab
2 videosβ’Total 12 minutes
- How Automated Testing Saves Data Engineers from Midnight Crisis Callsβ’4 minutes
- Production-Ready Testing with dbt and Great Expectationsβ’9 minutes
3 readingsβ’Total 25 minutes
- YAML-Based Testing Configuration and Great Expectations Integrationβ’7 minutes
- Building YAML Test Suites for Production Validationβ’8 minutes
- Automated Data Pipeline Deploymentβ’10 minutes
2 assignmentsβ’Total 18 minutes
- Data Quality Framework Mastery Assessmentβ’15 minutes
- Automated Testing Implementation Mastery Checkβ’3 minutes
1 ungraded labβ’Total 18 minutes
- Automated Data Pipeline Deployment with GitHub Actionsβ’18 minutes
You will learn systematic root cause analysis methodology for data pipeline anomalies through monitoring dashboard analysis and methodical investigation techniques.
What's included
1 video2 readings1 assignment1 ungraded lab
1 videoβ’Total 8 minutes
- Data Quality Investigation Framework: From Monitoring to Root Cause β’8 minutes
2 readingsβ’Total 18 minutes
- Monitoring Dashboard Analysis: Reading the Signs of Pipeline Distress β’10 minutes
- Navigating Monitoring Dashboards to Identify Data Anomaly Patternsβ’8 minutes
1 assignmentβ’Total 3 minutes
- Data Quality Investigation Fundamentals Assessment β’3 minutes
1 ungraded labβ’Total 18 minutes
- Systematic Data Pipeline Anomaly Investigationβ’18 minutes
You will implement effective resolution strategies for pipeline integrity through targeted fixes, validation techniques, and systematic restoration procedures.
What's included
2 videos2 readings2 assignments
2 videosβ’Total 16 minutes
- When Pipeline Fixes Become Production Heroes β’5 minutes
- Pipeline Anomaly Resolution: A Structured Approach β’11 minutes
2 readingsβ’Total 18 minutes
- Targeted Fix Implementation: SQL Solutions and Pipeline Restoration β’10 minutes
- Implementing SQL Fixes and Validating Pipeline Restoration β’8 minutes
2 assignmentsβ’Total 16 minutes
- Comprehensive Data Pipeline Troubleshooting Assessment β’13 minutes
- Pipeline Resolution Strategy Validationβ’3 minutes
You will learn systematic debugging approaches using conditional breakpoints, memory inspection, and methodical analysis techniques to transform from trial-and-error debugging to efficient problem resolution in Python data pipelines.
What's included
3 videos1 reading2 assignments
3 videosβ’Total 14 minutes
- When Production Pipelines Fail: The Cost of Poor Debuggingβ’3 minutes
- Advanced Debugging Fundamentals for Python Pipelinesβ’6 minutes
- Setting Up Conditional Breakpoints in Production Codeβ’5 minutes
1 readingβ’Total 10 minutes
- Conditional Breakpoints and Memory Inspection Techniquesβ’10 minutes
2 assignmentsβ’Total 18 minutes
- Hands-on Conditional Debugging in Multi-Batch Pipelineβ’15 minutes
- Advanced Debugging Techniques Knowledge Checkβ’3 minutes
You will develop systematic approaches to interpret complex stack traces, correlate log patterns, and reconstruct failure scenarios in multithreaded Python environments to identify concurrency issues like deadlocks and race conditions.
What's included
3 videos1 reading2 assignments1 ungraded lab
3 videosβ’Total 17 minutes
- The Hidden Complexity of Multithreaded Debuggingβ’4 minutes
- Understanding Stack Traces in Multithreaded Environmentsβ’6 minutes
- Analyzing ThreadPoolExecutor Stack Traces for Deadlock Detectionβ’7 minutes
1 readingβ’Total 10 minutes
- Log Correlation Techniques for Multithreaded Systemsβ’10 minutes
2 assignmentsβ’Total 13 minutes
- Production Multithreaded Debugging Mastery Assessmentβ’10 minutes
- Multithreaded Debugging Analysis Knowledge Checkβ’3 minutes
1 ungraded labβ’Total 20 minutes
- Stack Trace Detective: Debugging Multithreaded Pipeline Failuresβ’20 minutes
You will create a comprehensive data quality monitoring system by building automated tests, investigating data anomalies, and debugging complex pipeline issues. This project integrates data quality frameworks, root cause analysis techniques, and advanced debugging skills into a single, production-ready solution.
What's included
4 readings1 assignment
4 readingsβ’Total 90 minutes
- Why This Project Mattersβ’10 minutes
- Project Requirements β’10 minutes
- Assignment: Data Pipeline Quality & Debugging Systemβ’60 minutes
- Solution Keyβ’10 minutes
1 assignmentβ’Total 15 minutes
- Graded Quiz: Data Quality and Debugging for Reliable Pipelinesβ’15 minutes
You will explore how generative AI tools enhance data engineering workflows across DevOps practices, performance optimization, and quality assurance. You will discover practical applications of AI assistance in version control, containerization, CI/CD automation, query tuning, and debugging.
What's included
3 readings1 assignment
3 readingsβ’Total 30 minutes
- GenAI Tools Across the Data Engineering Lifecycleβ’10 minutes
- Implementing AI-Assisted Workflows: From DevOps to Debuggingβ’10 minutes
- Designing an AI-Enhanced Data Engineering Workflowβ’10 minutes
1 assignmentβ’Total 5 minutes
- Knowledge Check: AI-Enhanced Data Engineering: DevOps, Performance & Qualityβ’5 minutes
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