Apache Spark in 24 Hours, Sams Teach Yourself by Jeffrey Aven

Author:Jeffrey Aven [Aven, Jeffrey]
Language: eng
Format: azw3, epub
Publisher: Pearson Education
Published: 2016-08-31T04:00:00+00:00

FIGURE 13.3 The Hive command line interface.

The Hive CLI is used when the Hive client (or driver application) is deployed to the local machine, including the connection to the metastore. For large-scale implementations, a client/server approach is often more appropriate because the connection details to the metastore are kept in one place (on the server) and access can be controlled to the cluster. This approach is called HiveServer2.

HiveServer2 can now act as a multi-session driver application for multiple clients. HiveServer2 provides a JDBC interface that can be used by external clients (such as visualization tools) as well as a lightweight CLI called Beeline. Beeline is included and can be used directly with Spark SQL.

There is also a web-based interface called Beeswax, which is used within the HUE (or Hadoop User Environment) project.

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