Note, we’re also installing tomcat8-docs, tomcat8-examples, and tomcat8-admin which provide web apps with docs, tests, and admin features for Tomcat.

If you haven’t, below are instructions for installing the server on an Ubuntu 16.04 machine. If you’ve already got Tomcat installed, great. These contain important information on the requests served by Tomcat, including the IP address of the client sending the request, the request method and URL path, the HTTP status code, the number of bytes returned to the client and more.

Access log – records HTTP transactions between the client and the application serverĪs explained above, in this article we will focus on one specific type - access logs.

Catalina.out – uncaught exceptions and thread dumps.

Catalina log – records information about events such as the startup and shutdown of the Tomcat application server.

Tomcat provides a number of log types that can be used for monitoring Tomcat performance and the requests it serves: To follow the steps outlined here, you’ll need your own ELK Stack or a Logz.io account. In this article, we’ll show how to collect, process and analyze these logs using the ELK Stack and Logz.io. But just like Apache and Nginx, Tomcat serves requests and as such provides access logs for monitoring traffic. Tomcat is not a web server like Apache or Nginx but is defined as a Java servlet container, or a web container that provides extended functionality for interacting with Java Servlets. It consumes a relatively small amount of resources and provides users with simpler admin features. Tomcat is particularly popular for serving smaller applications since it doesn’t require the full Java EE platform.

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Monitoring apache tomcat 8