Apache HBase, distributed database, master node, region servers, zookeeper ensemble, high availability, horizontal scaling, column-family NoSQL database, data nodes, write-ahead log, block cache, bloom filters, row key, table schema, put/get/delete operations, data compression, storage management, Java API, thrift gateway, RESTful web service interface, Hadoop integration, big data analytics, real-time processing, IoT data ingestion, cloud deployment, on-premises infrastructure, racks of servers, network switches, data center environment.