3 tools
Apache Software Foundation · Data catalogs & formats
Open table format for data lakes that adds ACID snapshots, schema and partition evolution and time travel over Parquet, ORC or Avro files
Delta Lake project (Linux Foundation; created by Databricks) · Data catalogs & formats
Open table format with a transaction log over Parquet files, created by Databricks and hosted by the Linux Foundation, with Spark, Rust and Python implementations
MinIO, Inc. · Backup & recovery
S3-compatible object storage server; the AGPL community edition was archived in April 2026 and succeeded by MinIO's AIStor Free and AIStor Enterprise editions
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