Wowza Community

Debug logs are not getting printed in custom module

I have created a custom module to meet a specific use-case. in my module DEBUG logs are not getting printed in the log file, however I am able to print INFO, WARN, ERROR level logs.

for example : consider the onAppStart event in the custom module, here the info level log is printed in the log file but debug level is not getting printed.

public void onAppStart(IApplicationInstance appInstance)
    getLogger().info("Info level log"); // getting printed
    getLogger().debug("Debug level log"); // not getting printed


I have made the changes in file and changed the initial line as
log4j.rootCategory=INFO, stdout, serverAccess, serverError to log4j.rootCategory=DEBUG, stdout, serverAccess, serverError

is this the default behavior of the logger or is this a BUG in streaming engine or I have to make some more configuration for putting wowza in debug mode ?