The last time I wrote about Netflix Data Engineering Stacks, I learned that Netflix employs the Write-Audit-Publish pattern to keep thousands of Iceberg tables in high-quality status. This week, we…

Data Engineer Things

Netflix employs the Write-Audit-Publish (WAP) pattern using Apache Iceberg to maintain high data quality across thousands of tables. The WAP pattern involves writing data to a hidden snapshot, auditing it, and publishing it only if it passes quality checks. This approach is analogous to CI/CD workflows, ensuring validated data is exposed to downstream consumers. Apache Iceberg's structure, including manifest files, metadata files, and catalog, supports efficient snapshot management and branching, similar to version control in Git.

How does Netflix ensure the data quality for thousands of Apache Iceberg tables?