What is HBase?
Apache HBase is an open-source, distributed, versioned, column-oriented store modeled after Google' 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, HBase provides Bigtable-like capabilities on top of Apache Hadoop.
HBase is a tool in the Databases category of a tech stack.
Why developers like HBase
Performance
OLTP
Fast Point Queries