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[[metricbeat-module-tomcat]]
[role="xpack"]
== Tomcat module

beta[]

This module periodically fetches JMX metrics from Apache Tomcat.

[float]
=== Compatibility
The module has been tested with Tomcat 7.0.24 and 9.0.24. Other versions are expected to work.

[float]
== Dashboard
An overview dashboard for Kibana is already included:

image::./images/metricbeat-tomcat-overview.png[]

[float]
=== Usage
The Tomcat module requires <<metricbeat-module-jolokia,Jolokia>>to fetch JMX metrics. Refer to the link for instructions about how to use Jolokia.


[float]
=== Example configuration

The Tomcat module supports the standard configuration options that are described
in <<configuration-metricbeat>>. Here is an example configuration:

[source,yaml]
----
metricbeat.modules:
- module: tomcat
  metricsets: ['threading', 'cache', 'memory', 'requests']
  period: 10s
  hosts: ['localhost:8080']
  path: "/jolokia/?ignoreErrors=true&canonicalNaming=false"
----

[float]
=== Metricsets

The following metricsets are available:

* <<metricbeat-metricset-tomcat-cache,cache>>

* <<metricbeat-metricset-tomcat-memory,memory>>

* <<metricbeat-metricset-tomcat-requests,requests>>

* <<metricbeat-metricset-tomcat-threading,threading>>

include::tomcat/cache.asciidoc[]

include::tomcat/memory.asciidoc[]

include::tomcat/requests.asciidoc[]

include::tomcat/threading.asciidoc[]

