Logstash isn't just for logs! Did you know that Logstash can translate all kind of data into metrics you can use to monitor and track system performance?
One of these plugins allows Logstash to collect data from collectd. collectd is a metric collecting and delivery program with dozens of plugins which range from Apache to ZFS, databases, hardware performance metrics and so much more.
Learn how Logstash can help you start to keep track of your performance metric data!