Tomcat 7, jdbc connections aren't monitored

Hi We have tomcat 7.0.42. I read the manual I don’t understand if our configuration is correct for javamelody “auto-discovery”:

/home/folium/folium-prod/apache-tomcat-7.0.42/conf/context.xml

      <Resource name="jdbc/folium"
      url="jdbc:postgresql://postgresqldb:5432/folium"

/home/folium/folium-prod/local-conf.xml

      <data-service jndi-enabled="true" jndi-position="java:/comp/env/jdbc/folium" />

/home/folium/folium-prod/webapp/WEB-INF/enti/ATSBergamo/data-service-conf.xml

         <jndi-position>java:/comp/env/jdbc/folium</jndi-position>

Questions:

1. context.xml : is it correct url=“jdbc:postgresql://…” or is it better url=“jdbc://…” ?

2. local-conf.xml : is it correct jndi-position=“java:/comp/…” or is it better jndi-position=“java:comp/…”

3. should I add this java parameter ? -Djavamelody.datasources=java:comp/env/jdbc/folium

Best regards, Sala

[massimosala]

I added the listener to the start of the web.xml, as suggested, and now the reports are OK. Many thanks for your support.

[massimosala]

And since you have <data-service jndi-enabled="true" jndi-position="java:/comp/env/jdbc/folium" /> in a local-conf.xml file, perhaps you have a servlet listener that is getting and caching the datasource from JNDI before the initialization of javamelody in the javamelody SessionListener. In that case, it may help that the following listener is written in your WEB-INF/web.xml file before your servlet listener :

	<listener>
		<listener-class>net.bull.javamelody.SessionListener</listener-class>
	</listener>

Yes, we have this file /home/folium/folium-prod/webapp/WEB-INF/web.xml but it doesn’t list any listener, so I don’t know if / how to modify it.