Background:
When troubleshooting UMP (USM) performance issues, you may want to increase the size of the portal.log if youre not getting enough debug output/information when accessing the portal.log diagnostics/url.
UMP Portal Log
http://<waspserver>/jsp/diag.jsp?file=portal.log
Instructions:
1. Deactivate the wasp probe on the UMP system
2. To increase the size of portal.log edit the file portal-log4j-ext.xml:
<Nimsoft>/probes/service/wasp/webapps/ROOT/WEB-INF/classes/META-INF/portal-log4j-ext.xml (look for MaxFileSize).
For example:
<param name="MaxFileSize" value="1MB" />
You could increase it to 3MB
<param name="MaxFileSize" value="3MB" />
3. Activate wasp.
Click on the hosts/devices/nodes/areas within UMP/USM to recreate any slow performance/timing issue(s), then check the portal output once again.