Viewing Cluster History
From the navigation menu in the controller UI, you can access the HISTORY page that allows you to generate a report showing basic information related to the clusters that were running within the specified range of dates.
In contrast with the cloud controller dashboard, which only lists your currently active clusters, the historical report includes information for all the clusters created by the cloud controller.
To generate a report:
From the controller UI navigation menu, select HISTORY.
On the HISTORY page, select the range of dates and click SHOW HISTORY to generate a report for the selected period.
Once the report is generated, you can sort the data by clicking on the column headers.
The report includes the following information:
- Created - The date when your cluster was created (YYYY-MM-DD).
- Cluster Name - The name that you selected for the cluster.
- Worker Count - The number of worker nodes in the cluster. This number may be a decimal if a cluster has been resized.
- Compute Count - The number of compute nodes in the cluster. This number may be a decimal if a cluster has been resized.
- HDP Version - The HDP version that this cluster is running. See HDP Versions available for different cluster configurations.
- Cluster Type - The cluster configuration that you selected when creating this cluster.
- Region - The AWS region in which your cluster is running.
- Running Time (hours) - The sum of the running times for all the nodes in the cluster (master+worker1+worker2...+compute1+compute2...). This number is calculated in EC2 instance-hours, showing the time that you are billed for, not the actual running time. The running time displayed is adjusted for the selected time range.
The AGGREGATE RUNNING TIME is the sum of the Running Times, adjusted for the selected time range.
How are EC2 instance-hours billed
AWS bills for each EC2 instance-hour, which means that you are billed for each hour or partial hour that your instance is in the “running” state. For example:
- A 4-node cluster that runs for 20 minutes counts for 4 EC2 instance-hours.
- A 3-node cluster that runs for 2 hours and 30 minutes counts for 9 EC2 instnace-hours.
For more information, refer to How are EC2 instance-hours billed.