Monitoring cluster CPU and Memory with MC
On the MC Overview page, the CPU/Memory subsection provides a graph-based overview of cluster resources during the last hour, which lets you quickly monitor resource distribution across nodes.
This chart plots average and per-node percentages for both CPU and memory with updates every minute—unless you clear Auto Refresh Charts in the toolbar. You can also filter what the chart displays by clicking components in the legend at the bottom of the subsection to show/hide those components. Yellow data points represent individual nodes in the cluster at that point in time.
Investigating areas of concern
While viewing cluster resources, you might wonder why resources among nodes become skewed. To zoom in, use your mouse to drag around the problem area surrounding the time block of interest.
After you release the mouse, the chart refreshes to display a more detailed view of the selected area. If you hover your cursor over the node that looks like it's consuming the most resources, a dialog box summarizes that node's percent usage.
For more information, click a data point (node) on the graph to open MC's node details page. To return to the previous view, click Reset zoom.