Chapter 4. Managing Services
Use Services to monitor and manage selected services running in your Hadoop cluster.
All services installed in your cluster are listed in the leftmost Services panel.
Services supports the following tasks:
- 1. Overview: Ambari User's Guide
- 2. Monitoring and Managing Your Cluster
- 3. Managing Hosts
- 1. Working with Hosts
- 2. Determining Host Status
- 3. Filtering the Hosts List
- 4. Performing Host-Level Actions
- 5. Viewing Components on a Host
- 6. Decommissioning Masters and Slaves
- 7. How to Delete a Component
- 8. Deleting a Host from a Cluster
- 9. Setting Maintenance Mode
- 10. Adding Hosts to a Cluster
- 11. Rack Awareness
- 4. Managing Services
- 1. Starting and Stopping All Services
- 2. Selecting a Service
- 3. Adding a Service
- 4. Editing Service Config Properties
- 5. Viewing Service Summary and Alerts
- 6. Performing Service Actions
- 7. Monitoring Background Operations
- 8. Using Quick Links
- 9. Rolling Restarts
- 10. Refreshing YARN Capacity Scheduler
- 11. Rebalancing HDFS
- 5. Managing Service High Availability
- 1. NameNode High Availability
- 1.1. How To Configure NameNode High Availability
- 1.2. How to Roll Back NameNode HA
- 1.2.1. Stop HBase
- 1.2.2. Checkpoint the Active NameNode
- 1.2.3. Stop All Services
- 1.2.4. Prepare the Ambari Server Host for Rollback
- 1.2.5. Restore the HBase Configuration
- 1.2.6. Delete ZooKeeper Failover Controllers
- 1.2.7. Modify HDFS Configurations
- 1.2.8. Recreate the Standby NameNode
- 1.2.9. Re-enable the Standby NameNode
- 1.2.10. Delete All JournalNodes
- 1.2.11. Delete the Additional NameNode
- 1.2.12. Verify the HDFS Components
- 1.2.13. Start HDFS
- 2. ResourceManager High Availability
- 3. HBase High Availability
- 4. Hive High Availability
- 5. Storm High Availability
- 6. Oozie High Availability
- 1. NameNode High Availability
- 6. Managing Configurations
- 7. Administering the Cluster
- 8. Monitoring and Alerts