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Appender::Socket(3) User Contributed Perl Documentation Appender::Socket(3)
NAME
Log::Log4perl::Appender::Socket - Log to a socket
SYNOPSIS
use Log::Log4perl::Appender::Socket;
my $appender = Log::Log4perl::Appender::Socket->new(
PeerAddr => "server.foo.com",
PeerPort => 1234,
);
$appender->log(message => "Log me\n");
DESCRIPTION
This is a simple appender for writing to a socket. It relies on IO::Socket::INET and
offers all parameters this module offers.
Upon destruction of the object, pending messages will be flushed and the socket will be
closed.
If the appender cannot contact the server during the initialization phase (while running
the constructor "new"), it will "die()".
If the appender fails to log a message because the socket's "send()" method fails (most
likely because the server went down), it will try to reconnect once. If it succeeds, the
message will be sent. If the reconnect fails, a warning is sent to STDERR and the "log()"
method returns, discarding the message.
If the option "silent_recovery" is given to the constructor and set to a true value, the
behaviour is different: If the socket connection can't be established at initialization
time, a single warning is issued. Every log attempt will then try to establish the
connection and discard the message silently if it fails. If you don't even want the
warning, set the "no_warning" option to a true value.
Connecting at initialization time may not be the best option when running under Apache1
Apache2/prefork, because the parent process creates the socket and the connections are
shared among the forked children--all the children writing to the same socket could
intermingle messages. So instead of that, you can use "defer_connection" which will put
off making the connection until the first log message is sent.
EXAMPLE
Write a server quickly using the IO::Socket::INET module:
use IO::Socket::INET;
my $sock = IO::Socket::INET->new(
Listen => 5,
LocalAddr => 'localhost',
LocalPort => 12345,
Proto => 'tcp');
while(my $client = $sock->accept()) {
print "Client connected\n";
while(<$client>) {
print "$_\n";
}
}
Start it and then run the following script as a client:
use Log::Log4perl qw(:easy);
my $conf = q{
log4perl.category = WARN, Socket
log4perl.appender.Socket = Log::Log4perl::Appender::Socket
log4perl.appender.Socket.PeerAddr = localhost
log4perl.appender.Socket.PeerPort = 12345
log4perl.appender.Socket.layout = SimpleLayout
};
Log::Log4perl->init(\$conf);
sleep(2);
for(1..10) {
ERROR("Quack!");
sleep(5);
}
LICENSE
Copyright 2002-2013 by Mike Schilli <m AT perlmeister.com> and Kevin Goess <cpan AT goess.org>.
This library is free software; you can redistribute it and/or modify it under the same
terms as Perl itself.
AUTHOR
Please contribute patches to the project on Github:
http://github.com/mschilli/log4perl
Send bug reports or requests for enhancements to the authors via our
MAILING LIST (questions, bug reports, suggestions/patches):
log4perl-devel AT lists.net
Authors (please contact them via the list above, not directly): Mike Schilli
<m AT perlmeister.com>, Kevin Goess <cpan AT goess.org>
Contributors (in alphabetical order): Ateeq Altaf, Cory Bennett, Jens Berthold, Jeremy
Bopp, Hutton Davidson, Chris R. Donnelly, Matisse Enzer, Hugh Esco, Anthony Foiani, James
FitzGibbon, Carl Franks, Dennis Gregorovic, Andy Grundman, Paul Harrington, Alexander
Hartmaier David Hull, Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter, Brett
Rann, Peter Rabbitson, Erik Selberg, Aaron Straup Cope, Lars Thegler, David Viner, Mac
Yang.
perl v5.16.3 2013-07-26 Appender::Socket(3)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2024-04-27 02:09 @18.220.1.239 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)