Cloudera Docs

Creating a user-defined function in Cloudera Data Warehouse Private Cloud

You export user-defined functionality (UDF) to a JAR from a Hadoop- and Hive-compatible Java project and store the JAR on your cluster. Using Hive commands, you register the UDF based on the JAR, and call the UDF from a Hive query.

  • You must have access rights to upload the JAR to your cluster. Minimum Required Role: Configurator (also provided by Cluster Administrator, Full Administrator).
  • Make sure Hive on Tez or Hive LLAP is running on the cluster.
  • Make sure that you have installed Java and a Java integrated development environment (IDE) tool on the machine, or virtual machine, where you want to create the UDF.