Table of Contents


  1. Preface
  2. Introduction to Informatica Data Engineering Integration
  3. Mappings
  4. Mapping Optimization
  5. Sources
  6. Targets
  7. Transformations
  8. Python Transformation
  9. Data Preview
  10. Cluster Workflows
  11. Profiles
  12. Monitoring
  13. Hierarchical Data Processing
  14. Hierarchical Data Processing Configuration
  15. Hierarchical Data Processing with Schema Changes
  16. Intelligent Structure Models
  17. Blockchain
  18. Stateful Computing
  19. Appendix A: Connections Reference
  20. Appendix B: Data Type Reference
  21. Appendix C: Function Reference

HDFS or View File System (ViewFS) Connection Properties

HDFS or View File System (ViewFS) Connection Properties

Use a Hadoop File System (HDFS) or View File System (ViewFS) connection to access data in the Hadoop cluster. The HDFS or ViewFS connection is a file system type connection. You can create and manage an HDFS or ViewFS connection in the Administrator tool, Analyst tool, or the Developer tool. HDFS or ViewFS connection properties are case sensitive unless otherwise noted.
The order of the connection properties might vary depending on the tool where you view them.
The following table describes HDFS connection properties:
Name of the connection. The name is not case sensitive and must be unique within the domain. The name cannot exceed 128 characters, contain spaces, or contain the following special characters:
~ ` ! $ % ^ & * ( ) - + = { [ } ] | \ : ; " ' < , > . ? /
String that the Data Integration Service uses to identify the connection. The ID is not case sensitive. It must be 255 characters or less and must be unique in the domain. You cannot change this property after you create the connection. Default value is the connection name.
The description of the connection. The description cannot exceed 765 characters.
The domain where you want to create the connection. Not valid for the Analyst tool.
The connection type. Default is Hadoop File System.
User Name
User name to access HDFS.
NameNode URI
The URI to access the storage system. You can find the value for
in the
configuration set of the cluster configuration.
If you create connections when you import the cluster configuration, the NameNode URI property is populated by default, and it is updated each time you refresh the cluster configuration.
If you use a Cloudera CDP Public Cloud compute cluster and the HDFS is on a Cloudera Data Lake cluster, set the property
in the Spark properties of the Hadoop Connection to the same value as set here.

Accessing Multiple Storage Types

Use the NameNode URI property in the connection parameters to connect to various storage types. The following table lists the storage type and the NameNode URI format for the storage type:
NameNode URI Format
  • <namenode>
    is the host name or IP address of the NameNode.
  • <port>
    is the port that the NameNode listens for remote procedure calls (RPC).
in case of NameNode high availability.
View File System (ViewFS)
, where
is the mount table for the cluster.
WASB in HDInsight
  • <container_name>
    identifies a specific Azure Storage Blob container.
    is optional.
  • <account_name>
    identifies the Azure Storage Blob object.
ADLS in HDInsight
When you create a cluster configuration from an Azure HDInsight cluster, the cluster configuration uses either ADLS or WASB as the primary storage. You cannot create a cluster configuration with ADLS or WASB as the secondary storage. You can edit the NameNode URI property in the HDFS or ViewFS connection to connect to a local HDFS or ViewFS location.


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