Remote JMX Access + rd-jobs

[David Petzel]

I wanted to be able to access my rundeck jvm remote via JMX, so I added the following to /etc/rundeck/profile

````

# Enable JMX

JMX_OPTIONS="-Dcom.sun.management.jmxremote.port=9999 \

        -Dcom.sun.management.jmxremote.authenticate=false \

        -Dcom.sun.management.jmxremote.ssl=false"

export RDECK_JVM="$RDECK_JVM $JMX_OPTIONS"

````

This worked fine, the service starts and I am able to connect via jconsole remotely.

The problem comes into play when I attempt to import a job definition (which worked fine before enabling JMX). Here is the error I get:

````

[rundeck@rundeckserver ~]$ rd-jobs load --file /tmp/MyJobFile.job -F yaml

Error: Exception thrown by the agent : java.rmi.server.ExportException: Port already in use: 9999; nested exception is:

        java.net.BindException: Address already in use

````

If I disable JMX, the import works again. 

Is there a different way I should be enabling remote JMX functionality for Rundeck? Is it expected that rd-jobs would need to bind on the JMX port?

[Greg Schueler]

Hi David,

the /etc/rundeck/profile is used by both the server and the commandline tools currently, so I think your JMX config is then also being applied to the rd-jobs command.

You could perhaps modify /etc/rundeck/profile to have two separate RDECK_JVM settings, and modify the rd-jobs bash script to use the other one.

--
Greg Schueler

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[David Petzel]

Thanks Greg,

I'm wondering if it makes sense to update http://rundeck.org/docs/administration/scaling-rundeck.html#jmx-instrumentation based on this discussion? I was originally looking to hack this directly into the init script, until I found that doc which mentioned doing it in the profile file. 

Thanks

[David Petzel]

So just to confirm, moving the jmx logic directly into the init script does work.

[Greg Schueler]

Ok, sounds like the docs, or preferably the init-script should be updated.  We should allow JVM settings for the server only.

do you mind filing this as an issue?

--
Greg Schueler

[David Petzel]

Don't mind at all: https://github.com/dtolabs/rundeck/issues/417