Follow these steps to open the Node Details page in Pulse:
- In the Pulse UI, navigate to Nodes.
- On the Nodes page, select a host name.
The Node Details page opens, displaying metrics and charts for the selected host.
Summary Panel
The summary panel provides the following metrics, along with detailed information.
| Metric | Description |
|---|---|
| Up Time | The time that the node is available and running. |
| CPU's | The number of CPUs in the node. |
| Total Memory | The total memory allocated to the node. |
| Memory Used % | The amount of memory used (in %). |
| CPU Used % | The amount of CPU used (in %). |
| Disk Used % | The amount of Disk used (in %). |
| Applications | The number of applications running on the node. |
| Containers | The number of containers used in the node. |
Charts
You can monitor the following charts on the Node Details page.
| Chart | Description |
|---|---|
| CPU Usage | Displays the amount of CPU utilized by the node. |
| Memory Usage | Displays the amount of Memory utilized by the node. You can view the usage of the following memory types:
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| IO Usage | The IO Usage charts describe the number of input bytes read and the number of output bytes written to a node. The following IO metrics are displayed:
Note: Click Show Per Mount Usage to view I/O usage on every mount in the node. |
| Network Usage per Second | This chart displays the network throughput measured for every second. You can monitor the following network statistics:
Note To view individual network usage statistics of processes in the node, click Show Individual. By default, the aggregated value is displayed. |
| Disk Usage | This chart displays the amount of disk used by the node in directories. The value is displayed in %. Hover the scale to view the disk usage. |
| Hadoop Application CPU and Memory Usage | This tile displays the top five memory-intensive and CPU-intensive processes running on a node, at the top and the charts display the amount of memory and CPU utilized by the processes in the node (in MB). |
| Yarn Container Metrics | This chart displays the launch duration of containers.
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| JVM GC Count | The chart displays the amount of GC memory used based on the following metrics:
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| JVM GC Time | The chart displays the GC time based on the following metrics:
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| Error & Fatal Logs | Error & Fatal Logs is a table that displays all the errors that have occurred. It displays the Log Time and Message about the error. The Error & Fatal Logs tile displays the logs of any errors or unexpected behavior on the node. The table stores the following column details:
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