AMQP - connection timed out

Question

I receive an error, when trying to receive answer from RabbitMQ.

2015-07-03 09:31:12 [10.1.101.55][-][-][error][PhpAmqpLib\Exception\AMQPTimeoutException] exception 'PhpAmqpLib\Exception\AMQPTimeoutException' with message 'The connection timed out after 30 sec while awaiting incoming data' in /opt/www/site.ll/vendor/php-amqplib/PhpAmqpLib/Wire/AMQPReader.php:130
Stack trace:
#0 /opt/www/site.ll/vendor/php-amqplib/PhpAmqpLib/Wire/AMQPReader.php(147): PhpAmqpLib\Wire\AMQPReader->wait()
#1 /opt/www/site.ll/vendor/php-amqplib/PhpAmqpLib/Wire/AMQPReader.php(105): PhpAmqpLib\Wire\AMQPReader->rawread(7)
#2 /opt/www/site.ll/vendor/php-amqplib/PhpAmqpLib/Connection/AbstractConnection.php(528): PhpAmqpLib\Wire\AMQPReader->read(7)
#3 /opt/www/site.ll/vendor/php-amqplib/PhpAmqpLib/Connection/AbstractConnection.php(568): PhpAmqpLib\Connection\AbstractConnection->wait_frame(30)
#4 /opt/www/site.ll/vendor/php-amqplib/PhpAmqpLib/Channel/AbstractChannel.php(198): PhpAmqpLib\Connection\AbstractConnection->wait_channel(1, 30)
#5 /opt/www/site.ll/vendor/php-amqplib/PhpAmqpLib/Channel/AbstractChannel.php(332): PhpAmqpLib\Channel\AbstractChannel->next_frame(30)

When I trying to receive answer from my local pc it works, but on production server - not.

Why, and how I can fix it.

Thanks!

Answer 1

The deafult timeouts for Connection , Read and Write is 3s. In the development, your requests process too faster than production, so you can't see this error message in the development.

If you need a greater timeout (as me), you can set it when you create an instance of AMQPStreamConnection :

$connection = new AMQPStreamConnection(
        'localhost',
        5672,
        'guest',
        'guest',
        '/',
        false,
        'AMQPLAIN',
        null,
        'en_US',
        30, //Connection Timeout
        30 // Read/Write Timeout
);

The above code set the Connection , Read and Write timeouts to 30s which is reasonable in my case.

Answer 2

Make sure the correct port is set. Default is 5672 (not 15672 which is web interface).