High Availability This guide is for Apache Hadoop system administrators who want to enable continuous availability by configuring clusters without single points of failure. Continue reading: HDFS High Availability MapReduce (MRv1) and YARN (MRv2) High Availability Cloudera Navigator Key Trustee Server High Availability Key Trustee KMS High Availability High Availability for Other CDH Components Configuring Cloudera Manager for High Availability With a Load Balancer Tuning YARN HDFS High Availability