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  1. Preface
  2. Introduction to Hadoop Integration
  3. Before You Begin
  4. Amazon EMR Integration Tasks
  5. Azure HDInsight Integration Tasks
  6. Cloudera CDH Integration Tasks
  7. Hortonworks HDP Integration Tasks
  8. MapR Integration Tasks
  9. Appendix A: Connections

Hadoop Integration Guide

Hadoop Integration Guide

Configure the Metadata Access Service

Configure the Metadata Access Service

When the MapR cluster is secured with MapR Kerberos or ticketed authentication, edit Metadata Access Service properties to enable communication between the Developer tool and the cluster.
In the Administrator tool Domain Navigator, select the Metadata Access Service to configure, and then select the
Processes
tab.
In the
Environment Variables
area, configure the following property to define the Kerberos authentication protocol:
Property
Value
JAVA_OPTS
-Dhadoop.login=<MAPR_ECOSYSTEM_LOGIN_OPTS> -Dhttps.protocols=TLSv1.2
where <MAPR_ECOSYSTEM_LOGIN_OPTS> is the value of the MAPR_ECOSYSTEM_LOGIN_OPTS property in the file
/opt/mapr/conf/env.sh
.
MAPR_TICKETFILE_LOCATION
Required when the MapR cluster uses Kerberos or MapR Ticket authentication. Location of the MapR ticket file if you saved it to a directory other than /tmp.
For example,
/export/home/username1/Keytabs_and_krb5conf/Tickets/project1/maprticket_30103
Changes take effect when you restart the Metadata Access Service.

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