Monitoring thread pools

The Thread Pools portlet provides information about threads being used by the Geronimo server.

You can click Monitor to see statistics about maximum threads in the pool, lowest number recorded, highest number recorded, and threads in use for ConnectorThreadPool and DefaultThreadPool.

Note: ConnectorThreadPool is used in J2EE Connector Architecture (JCA), and DefaultThreadPool is used by Jetty and System database. They both have no connection with Tomcat Web connector.

To change the settings for maximum and minimum thread numbers for Tomcat Web container, edit arrtibutes of the GBean TomcatWebConnector in the file <GERONIMO_HOME>/var/config/config.xml.

<gbean name="TomcatWebConnector">
    ...
    <attribute name="maxThreads">150</attribute>
    <attribute name="minSpareThreads">25</attribute>
    <attribute name="maxSpareThreads">75</attribute>
    ...
</gbean>