This section provides an overview of the HDFS high availability (HA) feature and how to configure and manage an HA HDFS cluster.

• Introduction to HDFS High Availability
• Configuring Hardware for HDFS HA
• Enabling HDFS HA
• Disabling and Redeploying HDFS HA
• Configuring Other CDH Components to Use HDFS HA
• Administering an HDFS High Availability Cluster
• Changing a Nameservice Name for Highly Available HDFS Using Cloudera Manager