The Hardware Statistics tab displays CPU, memory, and I/O metrics for a node over a specified time interval. You can view statistics for the last hour, 12 hours, or 24 hours and export the statistics for a node. The metrics in the list beneath the graph are the current values. The plot lines on the graph represent values collected over the selected time frame. Select a metric name to see the plot line highlighted and surrounded by the performance envelope in the graph.
Teradata Aster System
| List Metrics | Description |
|---|---|
| CPU | Node CPU use |
| Memory | Memory used on the node |
| Network In | Rate of network traffic into the node in bytes per second |
| Network Out | Rate of network traffic out of the node in bytes per second |
| Disk In | Rate of disk writes in bytes per second |
| Disk Out | Rate of disk reads in bytes per second |
Teradata Hadoop System
| List Metrics | Description |
|---|---|
| CPU | Average node CPU use. CPU is calculated as the sum of the user CPU and system CPU usage percentages |
| HDFS I/O | Number of bytes read and written by the datanode HDFS I/O is displayed only on nodes where there is a datanode service.
|
| Memory Used | Memory used on the node |
| Memory Swap Used | Amount of memory used for swap space |
| Network In | Rate of network traffic into the node in bytes per second |
| Network Out | Rate of network traffic out of the node in bytes per second |
| Disk Space Used | Amount of used disk space on the node |