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apache / hudi / 5471d8f0c2ed43435622069bee8b68a8ba5141f4
commit5471d8f0c2ed43435622069bee8b68a8ba5141f4[log] [tgz]
authorleesf <490081539@qq.com>Sat Jan 18 09:22:55 2020 +0800
committerSuneel Marthi <smarthi@apache.org>Fri Jan 17 20:22:55 2020 -0500
treeb95af32b4f7fdcddc75beee5b0eb7491a73ab38c
parent292c1e2ff436a711cbbb53ad9b1f6232121d53ec [diff]
[MINOR] Add toString method to TimelineLayoutVersion to make it more readable (#1244)
1 file changed
tree: b95af32b4f7fdcddc75beee5b0eb7491a73ab38c
  1. .github/
  2. dev/
  3. docker/
  4. hudi-cli/
  5. hudi-client/
  6. hudi-common/
  7. hudi-hadoop-mr/
  8. hudi-hive/
  9. hudi-integ-test/
  10. hudi-spark/
  11. hudi-timeline-service/
  12. hudi-utilities/
  13. packaging/
  14. scripts/
  15. style/
  16. .gitignore
  17. .travis.yml
  18. DISCLAIMER-WIP
  19. doap_HUDI.rdf
  20. LICENSE
  21. NOTICE
  22. pom.xml
  23. README.md
README.md

Apache Hudi (Incubating)

Apache Hudi (Incubating) (pronounced Hoodie) stands for Hadoop Upserts Deletes and Incrementals. Hudi manages the storage of large analytical datasets on DFS (Cloud stores, HDFS or any Hadoop FileSystem compatible storage).

https://hudi.apache.org/

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Features

  • Upsert support with fast, pluggable indexing
  • Atomically publish data with rollback support
  • Snapshot isolation between writer & queries
  • Savepoints for data recovery
  • Manages file sizes, layout using statistics
  • Async compaction of row & columnar data
  • Timeline metadata to track lineage

Hudi supports three types of queries:

  • Snapshot Query - Provides snapshot queries on real-time data, using a combination of columnar & row-based storage (e.g Parquet + Avro).
  • Incremental Query - Provides a change stream with records inserted or updated after a point in time.
  • Read Optimized Query - Provides excellent snapshot query performance via purely columnar storage (e.g. Parquet).

Learn more about Hudi at https://hudi.apache.org

Building Apache Hudi from source

Prerequisites for building Apache Hudi:

  • Unix-like system (like Linux, Mac OS X)
  • Java 8 (Java 9 or 10 may work)
  • Git
  • Maven
# Checkout code and build
git clone https://github.com/apache/incubator-hudi.git && cd incubator-hudi
mvn clean package -DskipTests -DskipITs

To build the Javadoc for all Java and Scala classes:

# Javadoc generated under target/site/apidocs
mvn clean javadoc:aggregate -Pjavadocs

Quickstart

Please visit https://hudi.apache.org/quickstart.html to quickly explore Hudi's capabilities using spark-shell.