2 Licensed to the Apache Software Foundation (ASF) under one
3 or more contributor license agreements. See the NOTICE file
4 distributed with this work for additional information
5 regarding copyright ownership. The ASF licenses this file
6 to you under the Apache License, Version 2.0 (the
7 "License"); you may not use this file except in compliance
8 with the License. You may obtain a copy of the License at
10 http://www.apache.org/licenses/LICENSE-2.0
12 Unless required by applicable law or agreed to in writing,
13 software distributed under the License is distributed on an
14 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 KIND, either express or implied. See the License for the
16 specific language governing permissions and limitations
20 = Apache HBase™ Home
22 .Welcome to Apache HBase(TM)
23 link:https://www.apache.org/[Apache HBase(TM)] is the link:https://hadoop.apache.org[Hadoop] database, a distributed, scalable, big data store.
25 .When Would I Use Apache HBase?
26 Use Apache HBase when you need random, realtime read/write access to your Big Data. +
27 This project's goal is the hosting of very large tables -- billions of rows X millions of columns -- atop clusters of commodity hardware.
29 Apache HBase is an open-source, distributed, versioned, non-relational database modeled after Google's link:http://research.google.com/archive/bigtable.html[Bigtable: A Distributed Storage System for Structured Data] by Chang et al.
31 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.
34 - Linear and modular scalability.
35 - Strictly consistent reads and writes.
36 - Automatic and configurable sharding of tables
37 - Automatic failover support between RegionServers.
38 - Convenient base classes for backing Hadoop MapReduce jobs with Apache HBase tables.
39 - Easy to use Java API for client access.
40 - Block cache and Bloom Filters for real-time queries.
41 - Query predicate push down via server side Filters
42 - Thrift gateway and a REST-ful Web service that supports XML, Protobuf, and binary data encoding options
43 - Extensible jruby-based (JIRB) shell
44 - Support for exporting metrics via the Hadoop metrics subsystem to files or Ganglia; or via JMX
46 .Where Can I Get More Information?
47 See the link:book.html#arch.overview[Architecture Overview], the link:book.html#faq[FAQ] and the other documentation links at the top!
50 The HBase distribution includes cryptographic software. See the link:export_control.html[export control notice].
53 Feb 17, 2015:: link:http://www.meetup.com/hbaseusergroup/events/219260093/[HBase meetup around Strata+Hadoop World] in San Jose
55 January 15th, 2015:: link:http://www.meetup.com/hbaseusergroup/events/218744798/[HBase meetup @ AppDynamics] in San Francisco
57 November 20th, 2014:: link:http://www.meetup.com/hbaseusergroup/events/205219992/[HBase meetup @ WANdisco] in San Ramon
59 October 27th, 2014:: link:http://www.meetup.com/hbaseusergroup/events/207386102/[HBase Meetup @ Apple] in Cupertino
61 October 15th, 2014:: link:http://www.meetup.com/HBase-NYC/events/207655552[HBase Meetup @ Google] on the night before Strata/HW in NYC
63 September 25th, 2014:: link:http://www.meetup.com/hbaseusergroup/events/203173692/[HBase Meetup @ Continuuity] in Palo Alto
65 August 28th, 2014:: link:http://www.meetup.com/hbaseusergroup/events/197773762/[HBase Meetup @ Sift Science] in San Francisco
67 July 17th, 2014:: link:http://www.meetup.com/hbaseusergroup/events/190994082/[HBase Meetup @ HP] in Sunnyvale
69 June 5th, 2014:: link:http://www.meetup.com/Hadoop-Summit-Community-San-Jose/events/179081342/[HBase BOF at Hadoop Summit], San Jose Convention Center
71 May 5th, 2014:: link:http://www.hbasecon.com[HBaseCon2014] at the Hilton San Francisco on Union Square
73 March 12th, 2014:: link:http://www.meetup.com/hbaseusergroup/events/160757912/[HBase Meetup @ Ancestry.com] in San Francisco
75 View link:old_news.html[Old News]