Apache HBase

From Wikipedia, the free encyclopedia
Apache HBase
Developer(s) Apache Software Foundation
Stable release 0.96.0 / 19 October 2013 (2013-10-19)
Development status Active
Written in Java
Operating system Cross-platform
Type Column oriented database
License Apache License 2.0
Website hbase.apache.org

HBase is an open source, non-relational, distributed database modeled after Google's BigTable and is written in Java. It is developed as part of Apache Software Foundation's Apache Hadoop project and runs on top of HDFS (Hadoop Distributed Filesystem), providing BigTable-like capabilities for Hadoop. That is, it provides a fault-tolerant way of storing large quantities of sparse data (small amounts of information caught within a large collection of empty or unimportant data, such as finding the 50 largest items in a group of 2 billion records, or finding the non-zero items representing less than 0.1% of a huge collection).

HBase features compression, in-memory operation, and Bloom filters on a per-column basis as outlined in the original BigTable paper.[1] Tables in HBase can serve as the input and output for MapReduce jobs run in Hadoop, and may be accessed through the Java API but also through REST, Avro or Thrift gateway APIs.

HBase is not a direct replacement for a classic SQL database, although recently its performance has improved, and it is now serving several data-driven websites,[2][3] including Facebook's Messaging Platform.[4][5]

In the parlance of Eric Brewer’s CAP theorem, HBase is a CP type system.

History

Apache HBase began as a project by the company Powerset out of a need to process massive amounts of data for the purposes of natural language search. It is now a top-level Apache project and has generated considerable interest.[6]

Facebook elected to implement its new messaging platform using HBase in November 2010.[4]

See also

References

  1. ↑ Chang, et al. (2006). Bigtable: A Distributed Storage System for Structured Data
  2. ↑ Powered By HBase
  3. ↑ StumbleUpon HBase Presentation
  4. ↑ 4.0 4.1 The Underlying Technology of Messages
  5. ↑ Facebook: Why our 'next-gen' comms ditched MySQL Retrieved: 17 December 2010
  6. ↑ Powerset Blog

Bibliography

External links


Top level projects
Commons Projects
Lucene Projects
Hadoop Projects
Other projects
Incubator Projects
Apache Attic
Licenses standards
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.