>Did you see this syntax error?
OK I commented that line and left that to the apache's default.
Now I can see MPM status
# apache2 -V
[Fri Jul 10 21:15:32.121146 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_PID_FILE} is not defined
[Fri Jul 10 21:15:32.121269 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_RUN_USER} is not defined
[Fri Jul 10 21:15:32.121285 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_RUN_GROUP} is not defined
[Fri Jul 10 21:15:32.121306 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Fri Jul 10 21:15:32.165899 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_RUN_DIR} is not defined
[Fri Jul 10 21:15:32.166652 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Fri Jul 10 21:15:32.167426 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Fri Jul 10 21:15:32.167460 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Fri Jul 10 21:15:32.167680 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Fri Jul 10 21:15:32.167712 2020] [core:warn] [pid 49516] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
Server version: Apache/2.4.29 (Ubuntu)
Server built: 2020-03-13T12:26:16
Server's Module Magic Number: 20120211:68
Server loaded: APR 1.6.3, APR-UTIL 1.6.1
Compiled using: APR 1.6.3, APR-UTIL 1.6.1
Architecture: 64-bit
Server MPM: prefork
threaded: no
forked: yes (variable process count)
Regards,
Mahmood