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Data Quality

data_management data_cleansing data_validation

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2020-Q1 2026-Q1

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What if your Airflow tasks could understand natural language AND adapt to schema changes automatically, while maintaining the deterministic, observable workflows we rely on? This talk introduces practical patterns for AI-native orchestration that preserve Airflow’s strengths while adding intelligence where it matters most. Through a real-world example, we’ll demonstrate AI-powered tasks that detect schema drift across multi-cloud systems and perform context-aware data quality checks that go beyond simple validation—understanding business rules, detecting anomalies, and generating validation queries from prompts like “check data quality across regions.” All within static DAG structures you can test and debug normally. We’ll show how AI becomes a first-class citizen by combining Airflow’s features, assets for schema context, Human-in-the-Loop for approvals, and AssetWatchers for automated triggers, with engines such as Apache DataFusion for high-performance query execution and support for cross-cloud data processing with unified access to multiple storage formats. These patterns apply directly to schema validation and similar cases where natural language can simplify complex operations. This isn’t about bolting AI onto Airflow. It’s about evolving how we build workflows, from brittle rules to intelligent adaptation, while keeping everything testable, auditable, and production-ready.

I will talk about how Apache Airflow is used in the healthcare sector with the integration of LLMs to enhance efficiency. Healthcare generates vast volumes of unstructured data daily, from clinical notes and patient intake forms to chatbot conversations and telehealth reports. Medical teams struggle to keep up, leading to delays in triage and missed critical symptoms. This session explores how Apache Airflow can be the backbone of an automated healthcare triage system powered by Large Language Models (LLMs). I’ll demonstrate how I designed and implemented an Airflow DAG orchestration pipeline that automates the ingestion, processing, and analysis of patient data from diverse sources in real-time. Airflow schedules and coordinates data extraction, preprocessing, LLM-based symptom extraction, and urgency classification, and finally routes actionable insights to healthcare professionals. The session will focus on the following; Managing complex workflows in healthcare data pipelines Safely integrating LLM inference calls into Airflow tasks Designing human-in-the-loop checkpoints for ethical AI usage Monitoring workflow health and data quality with Airflow.

As modern data ecosystems grow in complexity, ensuring transparency, discoverability, and governance in data workflows becomes critical. Apache Airflow, a powerful workflow orchestration tool, enables data engineers to build scalable pipelines, but without proper visibility into data lineage, ownership, and quality, teams risk operating in a black box. In this talk, we will explore how integrating Airflow with a data catalog can bring clarity and transparency to data workflows. We’ll discuss how metadata-driven orchestration enhances data governance, enables lineage tracking, and improves collaboration across teams. Through real-world use cases, we will demonstrate how Airflow can automate metadata collection, update data catalogs dynamically, and ensure data quality at every stage of the pipeline. Attendees will walk away with practical strategies for implementing a transparent data workflow that fosters trust, efficiency, and compliance in their data infrastructure.

Tekmetric is the largest cloud based auto shop management system in the United States. We process vast amounts of data from various integrations with internal and external systems. Data quality and governance are crucial for both our internal operations and the success of our customers. We leverage multi-step data processing pipelines using AWS services and Airflow. While we utilize traditional data pipeline workflows to manage and move data, we go beyond standard orchestration. After data is processed, we apply tailored quality checks for schema validation, record completeness, freshness, duplication and more. In this talk, we’ll explore how Airflow allows us to enhance data observability. We’ll discuss how Airflow’s flexibility enables seamless integration and monitoring across different teams and datasets, ensuring reliable and accurate data at every stage. This session will highlight how Tekmetric uses data quality governance and observability practices to drive business success through trusted data.

We have a similar pattern of DAGs running for different data quality dimensions like accuracy, timeliness, & completeness. To do this again and again, we would be duplicating and potentially introducing human error while doing copy paste of code or making people write same code again. To solve for this, we are doing few things: Run DAGs via DagFactory to dynamically generate DAGs using just some YAML code for all the steps we want to run in our DQ checks. Hide this behind a UI which is hooked to github PR open step, now the user just provides some inputs or selects from dropdown in UI and a YAML DAG is generated for them. This highlights the potential for DAGFactory to hide Airflow Python code from users and make it more accessible to Data Analysts and Business Intelligence along with normal Software Engg, along with reducing human error. YAML is the perfect format to be able to generate code, create a PR and DagFactory is the perfect fir for that. All of this is running in GCP Cloud Composer.

This session showcases Okta’s innovative approach to data pipeline orchestration with dbt and Airflow. How we’ve implemented dynamically generated airflow dags workflows based on dbt’s dependency graph. This allows us to enforce strict data quality standards by automatically executing downstream model tests before upstream model deployments, effectively preventing error cascades. The entire CI/CD pipeline, from dbt model changes to production DAG deployment, is fully automated. The result? Accelerated development cycles, reduced operational overhead, and bulletproof data reliability

This session explores how to bring unit testing to SQL pipelines using Airflow. I’ll walk through the development of a SQL testing library that allows isolated testing of SQL logic by injecting mock data into base tables. To support this, we built a type system for AWS Glue tables using Pydantic, enabling schema validation and mock data generation. Over time, this type system also powered production data quality checks via a custom Airflow operator. Learn how this approach improves reliability, accelerates development, and scales testing across data workflows.

Ever seen a DAG go rogue and deploy itself? Or try to time travel back to 1999? Join us for a light-hearted yet painfully relatable look at how not to scale your Airflow deployment to avoid chaos and debugging nightmares. We’ll cover the classics: hardcoded secrets, unbounded retries (hello, immortal task!), and the infamous spaghetti DAG where 200 tasks are lovingly connected by hand and no one dares open the Airflow UI anymore. If you’ve ever used datetime.now() in your DAG definition and watched your backfills implode, this talk is for you. From the BashOperator that became sentient to the XCom that tried to pass a whole Pandas DataFrame and the key to your mother’s house, we’ll walk through real-world bloopers with practical takeaways. You’ll learn why overusing PythonOperator is a recipe for mess, how not to use sensors unless you enjoy resource starvation, and why scheduling in local timezones is basically asking for a daylight savings time horror story. Other highlights include: Over-provisioning resources in KubernetesPodOperator: many teams allocate excessive memory/CPU “just in case”, leading to cluster contention and resource waste. Dynamic task mapping gone wild: 10,000 mapped tasks later… the scheduler is still crying. SLAs used as data quality guarantees: creating alerts so noisy, nobody listens. Design-free DAGs: no docs, no comments, no idea why a task has a 3-day timeout. Finally, we’ll round it out with some dos and don’ts: using environment variables, avoiding memory-hungry monolith DAGs, skipping global imports, and not allocating 10x more memory “just in case.” Whether you’re new to Airflow or battle-hardened from a thousand failed backfills, come learn how to scale your pipelines without losing your mind (or your cluster).

Ensuring high-quality data is essential for building user trust and enabling data teams to work efficiently. In this talk, we’ll explore how the Astronomer data team leverages Airflow to uphold data quality across complex pipelines; minimizing firefighting and maximizing confidence in reported metrics. Maintaining data quality requires a multi-faceted approach: safeguarding the integrity of source data, orchestrating pipelines reliably, writing robust code, and maintaining consistency in outputs. We’ve embedded data quality into the DevEx experience, so it’s always at the forefront instead of in the backlog of tech debt. We’ll share how we’ve operationalized: Implementing data contracts to define and enforce expectations Differentiating between critical (pipeline-blocking) and non-critical (soft) failures Exposing upstream data issues to domain owners Tracking metrics to measure overall data quality of our team Join us to learn practical strategies for building scalable, trustworthy data systems powered by Airflow.

This talk explores EDB’s journey from siloed reporting to a unified data platform, powered by Airflow. We’ll delve into the architectural evolution, showcasing how Airflow orchestrates a diverse range of use cases, from Analytics Engineering to complex MLOps pipelines. Learn how EDB leverages Airflow and Cosmos to integrate dbt for robust data transformations, ensuring data quality and consistency. We’ll provide a detailed case study of our MLOps implementation, demonstrating how Airflow manages training, inference, and model monitoring pipelines for Azure Machine Learning models. Discover the design considerations driven by our internal data governance framework and gain insights into our future plans for AIOps integration with Airflow.