Monitoring and gathering metrics on your systems is an essential part of the lifecycle of any machine, application, or cluster. It provides us with the insight needed to be more proactive and less reactive to what our systems are doing. Gathering and viewing numerical data, like CPU load or memory usage, is something that is done with ease and looks great in a graph, but what about the massive amounts of log data out there? Historically, this was not something that you could easily put into a graph and it’s not always easily correlated with other events.