System configuration for log4j

[Happy Person]

I have identicle program running in two unix machines, both of which are java standalone. One system is creating the desired log files and is logging/rolling, while the other isn't. I investigated and found that log4j.propertie s files was not being read in one of the system. Any idea what difference in the unix machine would cause this?

[Happy Person]

Since both application are on the exact same filepath and log4j.jar files are also on an identicle filepath, I am unsure of where the system property is stored to check if log4j.configura tion is set or not