Nagios Support Forum

Weblogic server monitoring via Nagios XI gives the error "java.io.IOException: Unhandled exception in lookup".

It also at times results into flapping state.

Please suggest.

I am also facing same issue. can any one help here?

Considering you are from the same company, please coordinate who will be working on this so that changes are done by a single person. Can you provide some examples of the check command you are running? Does this always happen, some of the time, or very rarely? Have you tried running it from the command line, and if so do you get the same exception or more output?

That is fixed after resetting Nagios user password in application console.

Now, current isssue is:

Few Weblogic logic checks and OS checks working fine. but, few weblogic checks showing " Empty response from agent".

We have tried below things:

1) Restarted JVM
2) checked configuration
3) compared server setup

All of the above things were OK but, still issue is persist with many servers. can some please advise?

Check status is : Critical
Error Message:
Critical
No response from agent

This is a very old thread and there have been quite a few changes to XI since this was started. What XI version are you on now?

Nagios Version : Nagios XI 5.2.2
I started using thread as was not able find place to put question in this site so, used old one.
can you please advise here to fix no response from agent issue .. that is too for few checks only... and rest working fine in same server.

It would be helpful to know which version of WebLogic you are attempting to monitor as well as which agent you are attempting to leverage. There are a few different WebLogic agents out there. I believe the previous WebLogic documentation offered with Nagios XI was discontinued due to the agent not receiving an update in several years.

I've had much better luck enabling JMX on a per-application basis rather than trying to leverage a particular agent. JMX is very good for what it does and isn't subject to the various changes that every application server goes through. Are you just looking to monitor the basic JVM metrics, or are your applications providing custom beans that you need to capture?

Weblogic Version: 12.1.2.0.0
We have configured standard weblogic checks which provided/coming in Nagios XI. in those few working fine and few not.
Coming to agent i think for weblogic checks there will be no explicit agent configuration required. it works once port is open from Nagios to dest server . which is in place.

now, can you suggest how this agent issue can be fix which affecting Few JDBC related weblogic checks ?

Can you attach the plugin you are using? There isn't a Weblogic plugin that comes with XI. Some of the agents on our exchange are known not to work with 12, so it will be very important to know which plugin in you are using.

The output of ll /usr/local/nagios/libexec could be useful in figuring out what you are using. Please put the output in a code block. The "Code" button is the fifth from the left on the post input screen (between Quote and List).

Not sure which plug in. because, when entered given command it is giving huge list of files. as far as i know plug in issue was not there. becuase, mentioned checks were working fine earlier and all of sudden those went to no response from agent state. please advise further.