customize Tomcat and CF error page when server/tomcat is down

Question

We have an issue where all threads are used and CF or Tomcat delivers an error message page.
CF times out when database threads hang and displays a Service Not Available message or similar.
When regular threads are used up, Tomcat shows a similar message.
We are working to resolve this but in the meantime we would like to show a custom error page instructing users what happened and where they can continue.

Does anyone know where to find and edit the Tomcat and CF error pages on the following.

CF 11 on Windows

Thanks for your help,

Jon K

carl type3 · Answer

Hi Jon,

While I don't know how to change the CF tomcat error page, why not defined more tomcat threads and longer timeout so to have more available resources?

Edit workers.properties and server.xml files with something like changes EG:

CF\config\wsconfig\1\workers.properties:

worker.cfusion.connection_pool_size=1000
worker.cfusion.connection_pool_minsize=500

CF\cfusion\runtime\conf\server.xml

!-- begin connector AJP part -->
maxThreads="1000" minSpareThreads="500"

IIS and CF both need restart to re-read configuration changes.

Side note I guess you are aware CF11 is a long time end of life, so could be running old Java and tomcat versions plus be open to security exploits.

HTH, Carl.

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