hudi/README.md

Hoodie manages storage of large analytical datasets on HDFS and serve them out via two types of tables

• Read Optimized Table - Provides excellent query performance via purely columnar storage (e.g. Parquet)
• Near-Real time Table (WIP) - Provides queries on real-time data, using a combination of columnar & row based storage (e.g Parquet + Avro)

For more, head over here