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  • Data Engineering Integration 10.2.1
  • All Products

Table of Contents

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  1. Preface
  2. Introduction to Big Data Management Administration
  3. Big Data Management Engines
  4. Authentication and Authorization
  5. Running Mappings on a Cluster with Kerberos Authentication
  6. Configuring Access to an SSL/TLS-Enabled Cluster
  7. Cluster Configuration
  8. Cluster Configuration Privileges and Permissions
  9. Cloud Provisioning Configuration
  10. Queuing
  11. Tuning for Big Data Processing
  12. Connections
  13. Multiple Blaze Instances on a Cluster

Big Data Management Administrator Guide

Big Data Management Administrator Guide

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User Impersonation in the Hadoop Environment

User Impersonation in the Hadoop Environment

To enable different users to run mapping and workflow jobs on a Hadoop cluster that uses Kerberos authentication, you must configure user impersonation in the Hadoop environment.
For example, you want to enable user Bob to run mappings and workflows on the Hadoop cluster that uses Kerberos authentication.
To enable user impersonation, you must complete the following steps:
  1. In the Active Directory, enable delegation for the Service Principal Name for the Data Integration Service to enable Bob to run Hadoop jobs.
  2. If the service principal name (SPN) is different from the impersonation user, grant read permission on Hive tables to the SPN user.
  3. Specify Bob as the user name in the Hadoop connection.
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