Now, our effort in configuring Ganglia will be rewarded, having an unique interface reporting resource usage for both physical and virtual servers, beautifully left open on a big monitor inside our NOC.
Open your browser and point it to https://front-end:444/ganglia
, and you will hopefully find our Ganglia web frontend home page, as follows:
In the header at the top, you will see the date of the last refresh, with a Get Fresh Data button on the right-hand side, to gather updated statistics.
Under this, the two drop-down menus are used to select the time frame of the displayed statistics (Last hour, day, week, month, year, and so on) and to select the sorting of the objects displayed (by name, by host up, by host down, and so on).
On the bottom part of the header, there is the hierarchical breadcrumb trail of the current page. Starting from the main grid, we can dig into available clusters and hosts.
For the grid (the sum of all clusters) and each of the available...