Updated on 2022-11-18 GMT+08:00

Common Concepts

  • Filter

    Filters provide powerful features to help users improve the table data processing efficiency of HBase. Users can use the filters predefined in HBase and customized filters.

  • Coprocessor

    Coprocessors enable users to perform region-level operations and provide functions similar to those of triggers in relational database management systems (RDBMSs).

  • keytab file

    The keytab file is a key file that stores user information. In security mode, applications use the key file for API authentication on HBase.

  • Client

    Users can access the server from the client through the Java API, HBase Shell or WebUI to read and write HBase tables. The HBase client in this document indicates the HBase client installation package, see External Interfaces.