What is Hbase? Hbase is a NoSql database and it runs on top of the HDFS.Main Purpose of Hbase is read and write large amount of datasets.Hbase stores the data at rows and columns.Hbase programming written in only Java.Hbase does not support structured query Language. Main Components of Hbase: Hbase Master Server Regions Region Server ZooKeeper Click Here to know Full Explained Details About Components of Hadoop