Clustering with Wildfly mod_JK receiving error JBWEB0042

Document ID : KB000038576
Last Modified Date : 14/02/2018
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Problem:

While on a clustered environment running wildfly 8.2.1 with mod_JK, when trying to View users, groups, organizations, etc. you receive the following error 

pic1.png

Environment

12.6 SP6 or SP7 
Wildfly 8.2.1
mod_JK

Cause:

1)This error is displayed on the UI due to the version of mod_JK that is being used.

2)configuration errors inside workers.properties/standalone.bat files. 

Resolution:

1) please upgrade the version of mod_JK you are using. If the version is out dated this will cause the error displayed above. A working version of mod_JK that works with wildfly 8.2.1 is 1.2.40. 

2) Update the worker.worker1 to match the node_name on the standalone.bat file.

On the standalone.bat file it will say "set "NODE_NAME=iamnode0"" copy the node_name and replace worker1 with the node name to look like worker.iamnode0. 

 

Afterwards restarts the clustered environment and the issue should no longer be present.