Once you have installed and configured your MapR cluster in a test environment and migrated your applications to the MapR cluster you can begin to copy over your data from the Apache Hadoop HDFS to the MapR cluster.
Use any of the following methods to copy data from an HDFS cluster to a MapR cluster:
|hdfs:// protocol||You can use the hadoop distcp command with the
|webhdfs:// protocol||You can use the hadoop distcp command with the
|NFS||You can mount a MapR cluster to an HDFS cluster via NFS mount and then use the hadoop distcp command to copy data between the two clusters.|