Table of Contents

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  1. Preface
  2. Understanding Domains
  3. Managing Your Account
  4. Using Informatica Administrator
  5. Using the Domain View
  6. Domain Management
  7. Nodes
  8. High Availability
  9. Connections
  10. Connection Properties
  11. Schedules
  12. Domain Object Export and Import
  13. License Management
  14. Monitoring
  15. Log Management
  16. Domain Reports
  17. Node Diagnostics
  18. Understanding Globalization
  19. Managing Distribution Packages
  20. Appendix A: Code Pages
  21. Appendix B: Custom Roles
  22. Appendix C: Informatica Platform Connectivity
  23. Appendix D: Configure the Web Browser

Administrator Guide

Administrator Guide

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:
Property
Description
Name
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:
~ ` ! $ % ^ & * ( ) - + = { [ } ] | \ : ; " ' < , > . ? /
ID
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.
Description
The description of the connection. The description cannot exceed 765 characters.
Location
The domain where you want to create the connection. Not valid for the Analyst tool.
Type
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
fs.defaultFS
in the
core-site.xml
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
spark.yarn.access.hadoopFileSystems
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:
Storage
NameNode URI Format
HDFS
hdfs://<namenode>:<port>
where:
  • <namenode>
    is the host name or IP address of the NameNode.
  • <port>
    is the port that the NameNode listens for remote procedure calls (RPC).
hdfs://<nameservice>
in case of NameNode high availability.
View File System (ViewFS)
viewfs://<clusterX>
, where
clusterX
is the mount table for the cluster.
MapR-FS
maprfs:///
WASB in HDInsight
wasb://<container_name>@<account_name>.blob.core.windows.net/<path>
where:
  • <container_name>
    identifies a specific Azure Storage Blob container.
    <container_name>
    is optional.
  • <account_name>
    identifies the Azure Storage Blob object.
Example:
wasb://infabdmoffering1storage.blob.core.windows.net/infabdmoffering1cluster/mr-history
ADLS in HDInsight
adl://home
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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