The $NH_HOME/web/httpd/httpd-errors log file will show the following error:
No JkShmFile defined in httpd.conf. Using default <$NH_HOME>/web/logs/jk-runtime-status
Problem Ticket: PRD00056795
RTC defect: 28569
It is a normal informational message in newer Apache logs. The message can be ignored, as it only displays/logs during startup of the Apache service.