Hello, I am trying to setup a logger that has multiple appenders/categories (for example, one that goes to a file and one that goes to stdout). However, I also need to be able to modify the appenders after the initialization. For example, I want to update the log level and update the file name after initialization. I have found several examples of how to create the logger (and I have been successful in creating and using them), but I cannot figure out how to modify the appenders. I have worked through the documentation and help on these sites:

https://metacpan.org/pod/Log::Log4perl
https://www.perl.com/pub/2002/09/11/log4perl.html/
https://www.perlmonks.org/?node_id=1198853
[download]

but I cannot find a combination that works. Lets say I have this:

use Log::Log4perl;

sub init()
{
    Log::Log4perl->easy_init( 
        {   level    => $DEBUG,
            file     => ">>test.log",
            category => "FILE"
        },
        {   level    => $DEBUG,
            file     => "STDOUT",
            category => "STDOUT"
        }
    );
}

sub getLogger
{
    my ($category) = @_;
    
    my $logger = Log::Log4perl->get_logger($category);
        
    return $logger;
}

init();

my $stdout_logger = getLogger(STDOUT);
$stdout_logger->info("testing stdout logger");

my $file_logger = getLogger(FILE);
$file_logger->info("testing file logger");
[download]

How do I then change the level and file for each of these appenders? I have tried these example:

Log::Log4perl::Logger::APPENDER_BY_NAME{'STDOUT'}->threshold($TRACE);
Log::Log4perl->appender_by_name('STDOUT')->threshold($TRACE);
[download]

but they did not work. Alternatively, I tried this example:

https://metacpan.org/pod/Log::Log4perl#Advanced-configuration-within-P
+erl
[download]

and I got the logging to work, but I could not change the appender. What am I missing or doing wrong? Thanks

-- UPDATE --

http://log4perl.sourceforge.net/releases/Log-Log4perl/docs/html/Log/Log4perl/Appender/File.html

Here is how you change the file in an appender at run time:

<code> Log::Log4perl->appender_by_name('FILE')->file_switch('test2.log'); <code>

---

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