How to set up enhanced tracing / logging for 12.1 Web Viewer

Document ID : KB000117937
Last Modified Date : 22/10/2018
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How do I set up for enhanced tracing / logging for 12.1 Web Viewer? Support is telling me we'll need more detailed information than what is usually collected.
On the DRAS side, please have the server(s) set for message suppression “OFF”.  As a reminder, this can be done dynamically with the command from the SDSF da screen:
/f,(DRAS Task Name),message supp(off)
Documentation setup for Debug tracing on the Web Viewer Server: This is also a dynamic setting. A change here is usually picked up within 5 minutes, but it is better to have it set up ahead of time. Within the path set for your CAOMWV12_HOME environment variable, there are 3 trace files we need to set up. You'll find them under the /config folder:
The changes are the same for all three. On line 9 or 10 (lines beginning with a # are commented out):
Change 1, A3
To, A3
Change 2 - On the last line of the file
or optionally (to correctly place the comment appended to the end)
Recycling Tomcat will immediately pick up the logging level change.  Having these set up will help minimize the time to get the information CA Support will request.