1.Overview-总体概览
Cluster Resource Usage by Applications
- Displays the percentage of cluster resources in use by applications and the percentage available forusage.
Cluster Resource Usage by Leaf Queues
- Displays the percentage of cluster resources in use by leaf queues and the percentage available forusage.
Finished Apps From All Users
- Displays the number of completed, killed, and failed applications.
Monitor Running Apps
- Displays the number of pending and running applications.
memory-mb - Usages
- Displays the amount of used and available memory.
vcores - Usages
- Displays the number of used and available virtual cores.
Monitor Node ManagersDisplays the status of the Node Managers under the following categories:
- Active
- Unhealthy
- Decommissioning
- Decommissioned
2.Nodes-查看各个Nodes的状态
Information界面：
可以选择具体的节点查看：
Node Status
- This tab displays the node managers in a pictorial representation. It displays details such as the number of activenodes, number of unhealthy nodes, decommissioning nodes, and the number of decommissioned node managers.
Nodes Heatmap Chart
- This tab graphically displays nodes on the basis of their usage of memory. You can enter host or rack details in thesearch bar to filter nodes.
3.Queues-查看队列的状态
查看队列总体的状态：
查看队列详细指标
4.Application-查看应用状态
The Applications page displays details of the YARN applications in a tabular form.
• Application ID: The identifier for the application.
• Application Type: Specifies the application type for Mapreduce, YARN, TEZ, or other applications.
• Application Name: Provides the name of the application
• User: The name of the user who is the owner of the application.
• State: The running state of the application.
• Queue: Specifies the name of the queue to which the application belongs.
• Progress: The progress of the application in a percentage display.
• Start Time: The time when an application run started.
• Elapsed Time: The time taken for the application run.
• Finished Time: The time of completion of the application run.
• Priority: The priority of running the application.
• %Cluster: The percentage of cluster resources used by the application run.
