How to Delete a Host from a Cluster
In Hosts, click on a host name.
On the Host-Details page, select Host Actions drop-down menu.
Choose Delete.
If you have not completed prerequisite steps, a warning message similar to the following one appears:
- 1. Overview: Ambari User's Guide
- 2. Viewing the Ambari Dashboards
- 3. Managing Hosts
- 4. Managing Services
- 5. Managing Service High Availability
- NameNode High Availability
- How To Configure NameNode High Availability
- How to Roll Back NameNode HA
- Stop HBase
- Checkpoint the Active NameNode
- Stop All Services
- Prepare the Ambari Server Host for Rollback
- Restore the HBase Configuration
- Delete ZooKeeper Failover Controllers
- Modify HDFS Configurations
- Recreate the secondary NameNode
- Re-enable the secondary NameNode
- Delete All JournalNodes
- Delete the Additional NameNode
- Verify the HDFS Components
- Start HDFS
- ResourceManager High Availability
- HBase High Availability
- Hive High Availability
- Storm High Availability
- Oozie High Availability
- NameNode High Availability
- 6. Managing Configurations
- 7. Administering the Cluster
- 8. Monitoring and Alerts
- 9. Using Ambari Metrics
- AMS Architecture
- Using Grafana
- Performance Tuning
- Moving the Metrics Collector
- (Optional) Enabling HBase Region and Table Metrics