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Partition Finalization in Pinterest’s Next-Generation DB Ingestion Framework

calendar_today September 25, 2026 person Pinterest Engineering domain pinterest
Qianrui Zhang Sr Software Engineer, Logging Platform Kanchi Masalia Software Engineer II, Stream Processing Platform Liang Mou Sr Staff Software Engineer, Logging Platform Yi Pan Principal Engineer, Agent Platform Introduction This is the third post in our series on Pinterest’s next-generation database ingestion framework. Part 1 introduced the DB ingestion framework built on Kafka, Flink, Spark, and Iceberg, and Part 2 covered automated schema evolution. This post tackles another challenge in migrating downstream customers to the new ingestion framework: knowing when data is complete
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