HBase is a “column familly” database from the Hadoop ecosystem built on the model of Google BigTable. HBase can accommodate very large volumes of data (tera or peta) while maintaining high availability and fast response times.
Adaltas has posted a Node.js client for HBase whose code is published on GitHub and which uses the REST webservices (also called Stargate) and the JSON transport mode. The integration of services is complete and the code fully covered by unit tests.
In addition, I contributed the patch activating the update schemas allowing to modify the structure and configuration of a table using webservices.