Hi,

Yes both the package a and package b has the line

    
Log::Log4perl::init_and_watch('/etc/log4perl.conf',30);
$__PACKAGE__::mylog=Log::Log4perl->get_logger();
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but having get_logger without the package name makes any difference. The same script I have in my development box both are logged separately but when both the code runs at the same time I think the problem is there.

One more information

package a is saved in a file called a.pm and package b is inside a perl script .pl and defined the package b inside the BEGIN block and not returning a 1;

Does that makes any difference.