Hi,
Sorry, I'm traveling this week and I have limited time to answer. I
will reply during the weekend.
Regards
JB
On Tue, Apr 25, 2023 at 8:08 AM Ephemeris Lappis
wrote:
>
> Hello.
>
> I'm trying to configure remote JMX access to Karaf instances running
> inside containers.
>
> I've found a working configuration, but it produces some warning or
> error logs at startup.
>
> I've adapted the etc/org.apache.karaf.management.cfg to set 0.0.0.0
> instead of 127.0.0.1 for both rmiRegistryHost and rmiServerHost.
>
> When Karaf is launched, I've added this to JAVA_OPTS :
> -Djava.rmi.server.hostname=localhost \
> -Dcom.sun.management.jmxremote \
> -Dcom.sun.management.jmxremote.port=1089 \
> -Dcom.sun.management.jmxremote.rmi.port=1099 \
> -Dcom.sun.management.jmxremote.local.only=false \
> -Dcom.sun.management.jmxremote.authenticate=false \
> -Dcom.sun.management.jmxremote.ssl=false
>
> The "java.rmi.server.hostname=localhost" is needed since I have to
> access JMX through a ssh tunnel, and the name server must be
> localhost. But I have this warning in the logs :
>
> 2023-04-25T16:11:23,244 | WARN | activator-1-thread-1 | Activator
>| 40 - org.apache.karaf.management.server - 4.4.3 |
> | java.rmi.server.hostname system property is already set to
> localhost. Apache Karaf doesn't override it
>
> I suppose that as a simple warning, it doesn't matter. Which name does
> Karaf try to set without my property ?
>
> In the Karaf's management cfg file, port 1099 for the RMI server seems
> to be already defined, but if I don't add
> "com.sun.management.jmxremote.rmi.port=1099", external access doesn't
> work. But with my property, Karaf produces this log at startup :
>
> 2023-04-25T16:11:23,278 | ERROR | activator-1-thread-1 | Activator
>| 40 - org.apache.karaf.management.server - 4.4.3 |
> | Can't init JMXConnectorServer: Port already in use: 1099; nested
> exception is: \n java.net.BindException: Adresse déjà utilisée
>
> How karaf handles JMX is not very clear for me... Somebody has a clearer idea
> ?
>
> Thanks for your help.
>
> Regards.
