Greetings, I would like to graph Tomcat's HeapMemoryUsage -> used mbean value for trending. I have installed Tomcat's manager application with a user belonging only to the "manager-jmx" role. I would like to use curl to get the data. I have a couple of questions:
(1) I don't seem to be able to assign an empty password or otherwise no password to a user in "tomcat-users.xml". Or could I? (2) How do I get just the "used" value from the composite HeapMemoryUsage mbean? I guess I could subsequently search for pattern "used=". But just curious if I could get the value directly. None of the following queries worked: https://localhost:8453/manager/jmxproxy?qry=java.lang:type=Memory/HeapMemoryUsage https://localhost:8453/manager/jmxproxy?qry=java.lang:type=Memory/HeapMemoryUsage:used https://localhost:8453/manager/jmxproxy?qry=java.lang:type=Memory/HeapMemoryUsage.used Thanks! -Shanti