Hi Daniel, JMX collector polls all MBeans attributes. However Prometheus appender only expose metrics (numeric) on the Prometheus servlet:
http://localhost:8181/decanter/prometheus As the generated JMX JSON is "more" than just numeric, it’s possible that you don’t have the metrics. You can check the JMX JSON using another kind of appender (like log appender or elasticsearch). I can add kind of "json introspection" on the Prometheus appender to "force" some JSON fields as metrics (gauge). Regards JB > Le 2 mai 2021 à 22:24, Daniel Las <[email protected]> a écrit : > > Hi, > > I installed Decanter 2.7.0 on Karaf 4.2.11 with JMX collector and Prometheus > appender features. I uncommented "object.name.system=java.lang:*" in > org.apache.karaf.decanter.collector.jmx-local.cfg. > > Where can I find JVM metrics like current heap memory usage? > > Regards > -- > Daniel Łaś >
