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, non-relational database 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.
The HBase distribution includes cryptographic software. See the export control notice here
May 5th, 2014 HBaseCon2014 at the Hilton San Francisco on Union Square
March 12th, 2014 HBase Meetup @ Ancestry.com in San Francisco
February 16th, 2014 Apache HBase 0.98.0 released. Download it!
February 10th, 2014 HBase Meetup @ Continuuity in Palo Alto
January 30th, 2014 HBase Meetup @ Apple in Cupertino
January 30th, 2014 Los Angeles HBase User Group in El Segundo