Disabling and Redeploying HDFS HA
Minimum Required Role: Cluster Administrator (also provided by Full Administrator)
- Go to the HDFS service.
- Select .
- Select the hosts for the NameNode and the SecondaryNameNode and click Continue.
- Select the HDFS checkpoint directory and click Continue.
- Confirm that you want to take this action.
- Configuring the Hive Metastore to Use HDFS HA.
Cloudera Manager ensures that one NameNode is active, and saves the namespace. Then it stops the standby NameNode, creates a SecondaryNameNode, removes the standby NameNode role, and restarts all the HDFS services.