Effective in version 10.2.1, you can create a Metadata Access Service. The Metadata Access Service is an application service that allows the Developer tool to access Hadoop connection information to import and preview metadata.

The following sources and targets use Metadata Access Service at design time to extract the metadata:

HBase
HDFS
Hive
MapR-DB
MapRStreams

Previously, you performed the following steps manually on each Developer tool client machine to establish communication between the Developer tool machine and Hadoop cluster at design time:

Extracted cluster configuration files.
Ran
krb5.ini
file to import metadata from Hive, HBase, and complex file sources from a kerberos-enabled Hadoop cluster.

The Metadata Access Service eliminates the need to configure each Developer tool machine for design-time connectivity to Hadoop cluster.

For more information, see the "Metadata Access Service" chapter in the

Informatica 10.2.1 Application Service Guide

.