The HDFS Instances Page with Federation and High Availability
If you have high availability configured, the Instances page has a section at the top that provides information about the configured nameservices.
- Whether high availability and automatic failover are enabled
- Links to the active and standby NameNodes and SecondaryNameNode (depending on whether high availability is enabled or not).
Minimum Required Role: Configurator (also provided by Cluster Administrator, Limited Cluster Administrator , and Full Administrator)
- Edit the list of mount points for the nameservice (using the Edit... command)
- Enable or disable high availability and automatic failover