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.

This includes information about:
  • 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, Full Administrator)

There is also an Actions menu for each nameservice. From this menu you can:
  • Edit the list of mount points for the nameservice (using the Edit... command)
  • Enable or disable high availability and automatic failover