Book Image

Datadog Cloud Monitoring Quick Start Guide

By : Thomas Kurian Theakanath
Book Image

Datadog Cloud Monitoring Quick Start Guide

By: Thomas Kurian Theakanath

Overview of this book

Datadog is an essential cloud monitoring and operational analytics tool which enables the monitoring of servers, virtual machines, containers, databases, third-party tools, and application services. IT and DevOps teams can easily leverage Datadog to monitor infrastructure and cloud services, and this book will show you how. The book starts by describing basic monitoring concepts and types of monitoring that are rolled out in a large-scale IT production engineering environment. Moving on, the book covers how standard monitoring features are implemented on the Datadog platform and how they can be rolled out in a real-world production environment. As you advance, you'll discover how Datadog is integrated with popular software components that are used to build cloud platforms. The book also provides details on how to use monitoring standards such as Java Management Extensions (JMX) and StatsD to extend the Datadog platform. Finally, you'll get to grips with monitoring fundamentals, learn how monitoring can be rolled out using Datadog proactively, and find out how to extend and customize the Datadog platform. By the end of this Datadog book, you will have gained the skills needed to monitor your cloud infrastructure and the software applications running on it using Datadog.
Table of Contents (19 chapters)
1
Section 1: Getting Started with Datadog
9
Section 2: Extending Datadog
14
Section 3: Advanced Monitoring

Working with the DogStatsD interface

StatsD is an open source project for publishing application metrics, originally conceived by the photo-sharing website Flickr. It went through multiple implementations and its latest version is a Node.js application. The StatsD code and documentation can be found at https://github.com/statsd/statsd.

The StatsD service typically runs on port 8125 and listens for statistics sent over UDP or TCP. By default, StatsD listens on the UDP port and sends aggregates to charting and monitoring applications such as Graphite. Datadog bundles this service as DogStatsD and it's available out of the box as a UDP service running on port 8125, where the Datadog Agent runs.

The status of the DogStatsD service can be checked for in the datadog-agent status output on the host where the Datadog Agent is running, and it would look like the following:

=========
DogStatsD
=========
  Event Packets: 0
  Event Parse Errors: 0
  ...