Apache Hudi vs Dolt

Apache Hudi is a free, open-source data lakehouse platform that adds database capabilities to data lakes and supports incremental processing for low-latency analytics. It can update and delete records, with pluggable indexing for change-data-capture and streaming workloads. Transaction features include atomic writes, snapshot isolation, and non-blocking concurrency controls. Users can query historical table versions, roll back changes, and review commit history. Automated table services handle clustering, compaction, cleaning, file sizing, and indexing, while schema evolution and enforcement accommodate changing data. Listed integrations include Apache Spark, Apache Flink, Kafka, Debezium, Amazon S3, Google Cloud Storage, Azure Blob Storage, Trino, and dbt. Some integrations are read-only, so Spark or Flink may write Hudi tables for those systems to query. Downloads include source releases and Maven bundles, with PGP verification advised. Hudi relies on the security posture of its compute and storage environment.

Dolt is a SQL database for managing data with version-control operations. Users can fork, clone, branch, merge, push and pull databases, then inspect commits, compare diffs, resolve SQL conflicts and revert commits. It can be connected to like a MySQL database or deployed as a versioned MySQL replica. DoltHub hosts public data and provides a web interface for editing and pull-request review; databases are public by default, with private databases available to Pro users or organizations. DoltLab is a self-hosted option for running DoltHub on a private network or development machine. Connector libraries include JDBC, Perl DBI, MySQL Connector/Python and Go sqlx/database/sql; listed framework integrations include Django, SQLAlchemy, Prisma, Laravel, Hibernate, GORM, Rails and FastAPI. Hosted Dolt includes a web SQL workbench, nightly full backups retained for 14 days, and AWS and GCP private networking. Dolt is free and open source. DoltHub Pro is $5 a month; a Hosted Dolt trial instance is $50 a month.