exception using jmx prometheus exporter with tomcat 7.0.104

[Lorenzo]

we configure jmx agent in our tomcat using:

-javaagent:/opt/prometheus/jmx/jmx_prometheus_javaagent-0.14.0.jar=6969:/etc/prometheus/jmx/jmx_prometheus_exporter.yaml

the exporter works and Prometheus is able to scrape the metrics but in our catalina.out every calls to the metrics bring an exception (see below):

did we miss some library load in the tomcat?

thanks

Lorenzo

-----

io.prometheus.jmx.shaded.io.prometheus.jmx.JmxCollector collect
SEVERE: JMX scrape failed: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.NoInitialContextException: Cannot instantiate class: org.apache.naming.java.javaURLContextFactory [Root exception is java.lang.ClassNotFoundException: org.apache.naming.java.javaURLContextFactory]
    at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:370)
    at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:268)
    at io.prometheus.jmx.shaded.io.prometheus.jmx.JmxScraper.doScrape(JmxScraper.java:94)
    at io.prometheus.jmx.shaded.io.prometheus.jmx.JmxCollector.collect(JmxCollector.java:542)
    at io.prometheus.jmx.shaded.io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.findNextElement(CollectorRegistry.java:190)
    at io.prometheus.jmx.shaded.io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.nextElement(CollectorRegistry.java:223)
    at io.prometheus.jmx.shaded.io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.nextElement(CollectorRegistry.java:144)
    at io.prometheus.jmx.shaded.io.prometheus.client.exporter.common.TextFormat.write004(TextFormat.java:22)
    at io.prometheus.jmx.shaded.io.prometheus.client.exporter.HTTPServer$HTTPMetricHandler.handle(HTTPServer.java:68)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:77)
    at sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:83)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:80)
    at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:675)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:77)
    at sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:647)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
    at java.lang.Thread.run(Thread.java:748)
Caused by: javax.naming.NoInitialContextException: Cannot instantiate class: org.apache.naming.java.javaURLContextFactory [Root exception is java.lang.ClassNotFoundException: org.apache.naming.java.javaURLContextFactory]
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:674)
    at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:311)
    at javax.naming.InitialContext.init(InitialContext.java:244)
    at javax.naming.InitialContext.<init>(InitialContext.java:216)
    at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1926)
    at javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1895)
    at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:287)
    ... 17 more
Caused by: java.lang.ClassNotFoundException: org.apache.naming.java.javaURLContextFactory
    at java.net.URLClassLoader$1.run(URLClassLoader.java:360)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:349)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:348)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:430)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:326)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:363)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:278)
    at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:91)
    at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:61)
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:671)
    ... 23 more

[Den Zakh]

Have you fixed that?

четверг, 15 октября 2020 г. в 12:41:42 UTC+3, Lorenzo: