Company
Date Published
Author
Mallory Mooney
Word count
2922
Language
English
Hacker News points
None

Summary

Tomcat Manager provides a web-based interface to manage applications and hosts, view Tomcat metrics, and query metric data through a JMX proxy servlet. To access the management interface, users need to assign the `manager-jmx` or `manager-gui` role(s) to their account by updating the `tomcat-users.xml` configuration file. The web-based interface offers various areas for viewing metric data, including server and application status pages, an application manager with diagnostic tools, a JMX proxy text-based interface, and views of Tomcat's server status page and access logs. Remote connections can be enabled for JMX viewing metrics with other monitoring platforms like JConsole and JavaMelody, requiring adjustments to the `jmxremote` configuration file. Tools like JConsole and JavaMelody offer graphical interfaces for querying and visualizing Tomcat and JVM data, providing more insight into server health and performance than the web-based interface alone. Customization of access logs can be achieved by configuring valves and logging properties in Tomcat's `logging.properties` file, allowing for fine-grained control over log output and format.