NoClassDefFoundError when adding JBoss 5.1.0.GA

[zematrix]

I'm currently doing a setup of Jopr with Jopr 2.3.1, JDK 6, and JBoss 5.1.0.GA.

After installing the agent, I'm able to use it to begin monitoring my mysql database instance. However, when I try to add my JBoss 5.1.0 as a child of the agent, i get the following on the ui.

The Agent was unable to connect to the ResourceType[id=10049, category=Server, name=JBossAS Server, plugin=JBossAS] managed resource using the supplied connection properties. Please check that the connection properties are correct and that the managed resource on the agent machine is online. Cause: java.lang.Exception:java.lang.NoClassDefFoundError: org/jboss/logging/Logger -> java.lang.NoClassDefFoundError:org/jboss/logging/Logger -> java.lang.ClassNotFoundException:org.jboss.logging.Logger

When i try the procedure the second time, a new error related to jnp is shown

The Agent was unable to connect to the ResourceType[id=10049, category=Server, name=JBossAS Server, plugin=JBossAS] managed resource using the supplied connection properties. Please check that the connection properties are correct and that the managed resource on the agent machine is online. Cause: java.lang.Exception:java.lang.NoClassDefFoundError: Could not initialize class org.jnp.interfaces.NamingContext -> java.lang.NoClassDefFoundError:Could not initialize class org.jnp.interfaces.NamingContext

Is there something I'm missing?

[jayshaughnessy]

Hi,

I'm not sure if your problem is directly related or tangential. Although Jopr 2.3.1 includes support for AS 5.x via the new jboss-as-5 plugin it supports only EAP 5.0 and future versions of AS (5.2 and later). AS 5.0 and 5.1 are not supported because they lack the required hooks in the profile service. As such it is also doubtful they will be supported in the future.

[babazs]

HY!

I am using the latest jopr but it is not discovered my JBoss 5.1 server.

Do you use a plugin for JBoss5.1? Where can I download it?

thank you!

[ips]

Jopr 2.3 and later includes a jboss-as-5 plugin, but that plugin only supports JBoss EAP 5.0 and later. It should also support JBoss AS 5.2 and later, but I haven't tried that out yet.

[zematrix]

Hi,

I'm now using an instance of JBoss EAP 5.0 with jopr-2.3.1, but I'm still getting the same exception. In fact, both jopr and JBoss EAP are both installed on the same pc, and so I'm using the embedded jopr agent.

In addition, there seems to be no step by step instruction on how add jboss as a managed resource. If there is, could you please point me to some documetation on adding JBoss AS (or EAP) as a managed platform in jopr, I'll be very glad.

Thanks

[timlambertmf]

Why does the Jopr jboss-as-5 plugin support the JBoss EAP 5.0 packaging of JBoss AS 5.1, but not the open-source JBoss AS 5.1.0GA?

Per the JBoss EAP 5.0 component listing (http://www.jboss.com/products/platforms/application/components) I thought they were the same.

[lkrejci]

The simple reason is that they aren't the same EAP 5.0 contains important fixes to the remoting and remote security of the Profile Service. These were fixed only after 5.1.0.GA was released and therefore will only be included in the subsequent releases of the open-source AS.

[zematrix]

But now what is frustrating me is why I'm having the same issue with a JBoss EAP 5.0 instance, with the same error as I was getting on the JBoss 5.1.0.GA?

Guys, I'm in dire need of some help here, or we might be forced to look for a different management tool (which would be a shame considering the amount of noise I'd made about JOPR to my folks here).

[timlambertmf]

Are the fixes available in the open source tree ... as long as one is brave enough to figure out what to get, patch, and build locally?

I patched remoting a while back when I first deployed JBoss AS 5.1.0.

Maybe it's just a patch to the profiling service?

And I suppose the plugin itself because, if my quick read of the code was correct, it seems to be coded to avoid AS 5.1.

[ips]

Anything is possible, but we haven't looked into what it would take to patch AS 5.1.0. I would recommend upgrading to AS 6.0.0.M1 or buying a subscription for EAP. Correct, you'd have to patch the profile service, and possibly some of its dependent jars, as well as remove the check in the Jopr jboss-as-5 plugin's discovery code.

[ips]

EAP5 should work. Please post the stack trace you get when trying to add EAP5.   Is there anything non-standard about your EAP5 installation (e.g. did you delete or modify the client/ subdirectory?

[ccrouch]

"In fact, both jopr and JBoss EAP are both installed on the same pc, and so I'm using the embedded jopr agent."

We don't normally recommend the embedded agent for production use, so you should probably use the standalone agent and see if the problem still occurs.

Thanks

Charles