Configuring a MapR Cluster to Access a HDFS Cluster
Describes how to create a connection between a MapR cluster and an HDFS cluster.
As of the 3.1 release of the MapR software, a MapR cluster can access an
external HDFS cluster with the hdfs://
or
webhdfs://
protocols.
NOTE: Use the
hdfs://
protocol for CDH3 clusters. Prerequisites
Before you begin, verify the following:
- The MapR node accessing the HDFS cluster must have the
mapr-core
ormapr-client
package installed. - The HDFS cluster is installed and configured according to the vendor's specifications.
- To use the
hdfs://
protocol, edit the fs.hdfs.impl property in the$HADOOP_HOME/conf/core-site.xml
file to include the valueorg.apache.hadoop.hdfs.DistributedFileSystem
.
Refer to the case below that describes your MapR and HDFS clusters: