Show HN: OLake – Open-Source Postgres/MySQL/MongoDB CDC to Apache Iceberg

Category: database

Tags: cdc, iceberg, data-ingestion, etl, database-replication

Score: 7.5/10 (Innovation: 6, Technical: 8, Documentation: 8, Utility: 8)

OLake Go is a high-performance data ingestion engine that replicates databases (Postgres, MySQL, MongoDB, Oracle, DB2, MSSQL), Kafka, and S3 into Apache Iceberg or Parquet without requiring Spark, Flink, or Debezium. It claims impressive benchmarks (e.g., 580K RPS for Postgres full load) and provides a UI and CLI for managing sync jobs, making it a promising alternative to commercial tools like Fivetran.

Target audience: data engineers, backend developers, devops

Repository: https://github.com/datazip-inc/olake · Go · Apache-2.0 · 1574 stars

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