It is very important to understand the data model of HBase and the core principle on which it stands and provides the foundation to scale. We will go through the following concepts:
Logical view
Physical view
Tables
Namespace
Rows
Columns
Column families
Column qualifier
Cells
Logical view of HBase represents distributed, persistent multinational store map, which represents the data in a column and row, key along a timestamp. It also shows a representation of how data is kept to get maximum scalability and performance.
The following screenshot shows data that is represented in an HBase table:
The logical representation of the preceding table is as follows:
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rowkey |
Column family |
Column qualifier |
timestamp |
value |
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