Confirm What You Are Metering

The You-Are-Hereonly constant in this universe is change. Applications, operating systems, hardware, networks, and configurations can and do change on a regular basis.

It’s easy to start the right meters on the wrong system. It’s easy to miss an upgrade or a configuration change. Before any meter-gathering program settles down into its main metering loop, it should gather some basic data about where it is and what else is there. Gather things like:

  • System name and network address
  • System hardware CPU, memory, disk, etc.
  • Operating System release and configuration info
  • List of processes running
  • Application configuration info

Most of the time this data is ignored, but when weird things happen, or results suddenly stop making sense, this data can be a valuable set of clues as to what changed.

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