Hello Suvendu, I've never used the "org.apache.catalina.mbeans.JmxRemoteLifecycleListener", I would advise you to continue using the JVM startup options for JMX [1]
Martynas: the JPDA port is using to enable debugging in your java process and be able to connect to it, e.g. via your favourite IDE. Cheers, Luis [1] https://tomcat.apache.org/tomcat-9.0-doc/monitoring.html#Enabling_JMX_Remote El mar, 2 feb 2021 a las 16:23, Suvendu Sekhar Mondal (<suv3...@gmail.com>) escribió: > Hi Martynas, > > On Tue, Feb 2, 2021 at 5:04 PM Martynas Jusevičius > <marty...@atomgraph.com> wrote: > > > > Not sure if related, but JPDA address config changed from - > > JPDA_ADDRESS=8000 on Tomcat 8 to - JPDA_ADDRESS=*:8000 on Tomcat 9 > > (i.e. host needs to be included, or a wildcard). > > > Thanks for pointing that out but I think it is not related to the > problem I am seeing. > > > On Tue, Feb 2, 2021 at 12:22 PM Suvendu Sekhar Mondal <suv3...@gmail.com> > wrote: > > > > > > Hello Everyone, > > > > > > We recently migrated Tomcat from 7.0.55 to 9.0.39. Everything is > > > working as expected except accessing exposed MBeans via JMX clients > > > like jconsole/jvisualvm. While troubleshooting the issue, I enabled > > > debug logging for both of those tools and it is throwing following > > > error: > > > java.rmi.ConnectIOException: non-JRMP server at remote endpoint > > > at > sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:248) > > > at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202) > > > at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:338) > > > at > sun.rmi.registry.RegistryImpl_Stub.lookup(RegistryImpl_Stub.java:112) > > > at sun.tools.jconsole.ProxyClient.checkSslConfig(ProxyClient.java:234) > > > at sun.tools.jconsole.ProxyClient.<init>(ProxyClient.java:127) > > > at sun.tools.jconsole.ProxyClient.getProxyClient(ProxyClient.java:475) > > > at sun.tools.jconsole.JConsole$3.run(JConsole.java:524) > > > > > > We are using org.apache.catalina.mbeans.JmxRemoteLifecycleListener to > > > specify RMI registry and server port like this: > > > <Listener > > > className="org.apache.catalina.mbeans.JmxRemoteLifecycleListener" > > > rmiRegistryPortPlatform="8181" rmiServerPortPlatform="8282" /> > > > > > > And we can see that TC is registering properly to those ports: > > > 2021-02-02 05:07:08,541 INFO > > > org.apache.catalina.mbeans.JmxRemoteLifecycleListener - The JMX Remote > > > Listener has configured the registry on port [8181] and the server on > > > port [8282] for the [Platform] server > > > > > > We use remote JMX with no authentication or SSL: > > > -Dcom.sun.management.jmxremote.ssl=false > > > -Dcom.sun.management.jmxremote.authenticate=false > > > > > > Workaround is to add following options in JVM arguments and then I was > > > able to use JMX on port 8181: > > > -Dcom.sun.management.jmxremote > > > -Dcom.sun.management.jmxremote.port=8181 > > > > > > But I am not sure why it broke in Tomcat 9.0.39 in the first place > > > because with a similar configuration we are able to access JMX on > > > Tomcat 7.0.55. I noticed that JmxRemoteLifecycleListener has been > > > deprecated and will be removed in future[1] but we are on a version > > > which was released 3-4 months ago. So, could this be a bug or > > > something else? > > > > > > [1] 2021-02-02 05:07:07,447 WARNING > > > org.apache.catalina.mbeans.JmxRemoteLifecycleListener - The > > > JmxRemoteLifecycleListener is deprecated as as the features it > > > provides are now available in the remote JMX capability included with > > > the JRE. This listener will be removed in Tomcat 10 and may be removed > > > from Tomcat 9 some time after 2020-12-31. > > > > > > JDK version: jdk1.8.0_192 > > > OS: Windows Server 2016 > > > > > > Thanks & Regards, > > > Suvendu > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > > > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > -- "Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better." - Samuel Beckett
