:original_name: mrs_03_1202.html

.. _mrs_03_1202:

Why Are the HDFS, YARN, and MapReduce Components Unavailable When an MRS Cluster Is Created?
============================================================================================

The HDFS, YARN, and MapReduce components are integrated in Hadoop. If the three components are unavailable when are MRS cluster is created, select Hadoop instead. After an MRS cluster is created, HDFS, YARN, and MapReduce are available in the **Components** page.
