Monitoring Resources

Grid Monitor Window

The Grid Monitor window view of the monitor shows one node for each machine in the cluster. When you place your pointer over a node icon, a tooltip shows the resource use on the machine.

Grid Monitor Node View

In the preceding display, the grid001 machine is distributing data to the other three machines in the cluster. The red line indicates that it is writing data on the network and the smaller blue lines on the other icons indicate that they are reading data. There is a CPU[n] display in the tooltip for each core on the machine. In most cases, there are 24 or more cores shown. Each of the cores is also represented by a green line on the node icon.

Viewing History

The monitor offers two views of historic resource use. The first is a cumulative view of all the machines. The second view is for an individual machine. Both views show 60 seconds of historic activity.

The cumulative view for all the machines is shown after you select Menu

Show Grid History. The green line shows the average CPU utilization and the blue line shows the average memory use.

If you select a node icon in the node view, right-click, and select Show History Graph, then the monitor opens a window that shows the historic resource usage for that machine.

The indicators are as follows:

Green Shows the average CPU usage for all the cores in the machine.
Yellow Each line shows the CPU usage for one core.
Light blue Shows the memory usage for the machine.
Dark blue Shows the network read speed as a percent.
Red Shows the network write speed as a percent.

For the network read and write percentages, when the monitor connects to the cluster, it determines the network interface speed, typically 1G or 10G Ethernet.