Prerequisites for enabling HDFS HA using Cloudera Manager
There are certain prerequisites that your cluster must satisfy before HDFS HA can be enabled using Cloudera Manager.
- Ensure that you perform all the required configuration and setup tasks.
- Enabling and disabling HA causes a service outage for the HDFS service and all services that depend on HDFS. Before enabling or disabling HA, ensure that there are no jobs running on your cluster.
- Ensure that you have a ZooKeeper service configured.