Metrics are central to a modern monitoring system and Datadog is no exception. Datadog offers a rich set of options to generate and use metrics. Though tags have general-purpose uses across all Datadog resources, their main use is to group and filter massive amounts of metrics data.
In this chapter, we learned how metrics and tags are defined and how metrics and other resources are grouped and searched for using tags. Besides Datadog-defined metrics and tags, there are multiple ways to add custom metrics and tags, and some of those methods were discussed in this chapter.
An event is an activity in the infrastructure or in the application system that Datadog monitors. Datadog captures and lists such events on the event stream dashboard. Events can be searched for in multiple ways, including by using keywords and tags. Events can be forwarded to different channels such as email, Slack, and PagerDuty.
In the next chapter, we will see how monitoring events are managed...