SyslogUdpHandler - Call to socket_sendto() throws a Fatal error: uncaught exception if a wrong / unreachable IP is given.

[mrtariqkhan]

$handler = new SyslogUdpHandler('192.168.225.3668', 514, LOG_USER, env('LOG_LEVEL', 'DEBUG'));
$handler->setFormatter($lineformatter);
$monolog->pushHandler($handler);

results in

2017/11/22 13:41:45 [error] 1612#1612: *177 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught ErrorException: socket_sendto(): Host lookup failed [-10001]: Unknown host in /home/project/vendor/monolog/monolog/src/Monolog/Handler/SyslogUdp/UdpSocket.php:47

Stack trace:
-0 [internal function]: Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(2, 'socket_sendto()...', '/home/...', 47, Array)

-1 vendor/monolog/monolog/src/Monolog/Handler/SyslogUdp/UdpSocket.php(47): socket_sendto(Resource id #4, '<11>1 2017-11-2...', 274, 0, '192.168.225.564', 514)

-2 vendor/monolog/monolog/src/Monolog/Handler/SyslogUdp/UdpSocket.php(31): Monolog\Handler\SyslogUdp\UdpSocket->send('<11>1 2017-11-2...')

-3 vendor/monolog/monolog/src/Monolog/Handler/SyslogUdpHandler.php(51): Monolog\Handler\SyslogUdp\UdpSocket->write('2017-11-22T13:4...', '<11>1 2017-11-2...')

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Is there a reason its this way and not caught gracefully?

[tomzx]

192.168.225.3668 is not a valid ip address.

[mrtariqkhan]

indeed it is, the problem is it throws out an unhandeled fatal exception. Which is an issue if the supplied IP or domain name goes down for some reason. In my case its the rsyslogd server which went down and took the whole application down with it.

[Seldaek]

You should use a WhatFailureGroupHandler if you want to swallow errors in handlers.