I've got a brand-new Zimbra 4.1.0 upgrade on my Ubuntu server monitoring my Zimbra 5.0.15 box, also Ubuntu. On the Platform monitoring page, I see the Zimbra service appear, but marked with a gray bang. Clicking through that, I see:
This resource is turned off or has not been configured properly. The problem is: Invalid configuration: Error reported by Agent @ 10.1.1.1:2144: java.lang.NullPointerException Please turn on the server, or fix its Configuration Properties.
(IP address changed to protect the innocent.)
Nothing I seem to do on the Configuration Properties page seems to allow Zimbra monitoring to live. All changes result in that same error message of "Invalid configuration".
please turn on HQ Agent debugging (agent.properties) on the Zimbra server, restart the Agent and try to set the Configuration Properties again. Meanwhile please tail the agent.log and post the occuring errors.