Case 4: Secure MapR Cluster with Secure and Insecure HDFS Cluster

Describes how to configure access between a secure MapR cluster and an HDFS cluster that is both secure and insecure.

If the MapR cluster is secure and the HDFS cluster is both secure and insecure, complete the steps described in Case 2.

If a secure MapR cluster is accessing an insecure HDFS cluster with the hdfs:// protocol, modify the /opt/mapr/conf/ file on each node to replace ${MAPR_LOGIN_OPTS} with “-Dhadoop.login=maprsasl_permissive” in the HADOOP_JOBTRACKER_OPTS and HADOOP_TASKTRACKER_OPTS variables.

Launch any commands that need to access the HDFS cluster with the “HADOOP_OPTS=-Dhadoop.login=hybrid” Java property.