Installing and Configuring File System C Clients
Install the mapr-client package on the nodes on which you plan to build
            and run client applications. This package installs the libMapRClient
            library. See Setting Up
               the Client.
NOTE
 The mapr-core package contains the files that are in the
               mapr-client package. If you have installed the mapr-core
            package, you do not need to install the mapr-client package.The modified versions of libhdfs are installed in this directory:
            MAPR_HOME/hadoop/hadoop-<version>/