Welcome to Apache HBase™

Apache HBase™ is the Hadoop database, a distributed, scalable, big data store.

When Would I Use Apache HBase?

Use Apache HBase when you need random, realtime read/write access to your Big Data. This project's goal is the hosting of very large tables -- billions of rows X millions of columns -- atop clusters of commodity hardware. Apache HBase is an open-source, distributed, versioned, column-oriented store modeled after Google's Bigtable: A Distributed Storage System for Structured Data by Chang et al. Just as Bigtable leverages the distributed data storage provided by the Google File System, Apache HBase provides Bigtable-like capabilities on top of Hadoop and HDFS.


  • Linear and modular scalability.
  • Strictly consistent reads and writes.
  • Automatic and configurable sharding of tables
  • Automatic failover support between RegionServers.
  • Convenient base classes for backing Hadoop MapReduce jobs with Apache HBase tables.
  • Easy to use Java API for client access.
  • Block cache and Bloom Filters for real-time queries.
  • Query predicate push down via server side Filters
  • Thrift gateway and a REST-ful Web service that supports XML, Protobuf, and binary data encoding options
  • Extensible jruby-based (JIRB) shell
  • Support for exporting metrics via the Hadoop metrics subsystem to files or Ganglia; or via JMX

Where Can I Get More Information?

See the Architecture Overview, the Apache HBase Reference Guide FAQ, and the other documentation links on the left!


June 13th, 2013 HBaseCon2013 in San Francisco. Submit an Abstract!

April 11th, 2013 HBase Meetup at AdRoll in San Francisco

February 28th, 2013 HBase Meetup at Intel Mission Campus

February 19th, 2013 Developers PowWow at HortonWorks' new digs

January 23rd, 2013 HBase Meetup at WibiData World HQ!

December 4th, 2012 0.96 Bug Squashing and Testing Hackathon at Cloudera, SF.

October 29th, 2012 HBase User Group Meetup at Wize Commerce in San Mateo.

October 25th, 2012 Strata/Hadoop World HBase Meetup. in NYC

September 11th, 2012 Contributor's Pow-Wow at HortonWorks HQ.

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