[rabbitmq-discuss] Message not being delivered to consumer

[Jeremy G]

Setup: Centos 6.2, RabbitMQ 3.1.3, PHP 5.4.3

I am attempting to run the demo scripts from Alvaro Videla's php-amqlib (
https://github.com/videlalvaro/php-amqplib), specifically
amqp_consumer_non_blocking.php &  amqp_publisher.php 

One console is running 'php amqp_consumer_non_blocking.php', so I open 
another console and run 'php amqp_publisher.php This is a test'

'amqp_consumer_non_blocking.php' sits waiting with:

< 60,20: Basic.consume
waiting for 60,21
waiting for a new frame
> 60,21: Basic.consume_ok

and 'amqp_publisher.php' produces this:

< 60,40: Basic.publish
< [hex]:
0000  02 00 01 00 00 00 1A 00  3C 00 00 00 00 00 00 00   ........ <.......
0010  00 00 0E 90 00 0A 74 65  78 74 2F 70 6C 61 69 6E   .....te xt/plain
0020  02 CE                                              .Î

< [hex]:
0000  03 00 01 00 00 00 0E 54  68 69 73 20 69 73 20 61   .......T his is a
0010  20 74 65 73 74 CE                                   testÎ

< [hex]:
0000  01 00 01 00 00 00 0B 00  14 00 28 00 00 00 00 00   ........ ..(.....
0010  00 00 CE                                           ..Î

< 20,40: Channel.close
waiting for 20,41
waiting for a new frame

The message does not get delivered.

However, I have run these scripts on another virtual machine (Centos 6.2, 
Rabbit 3.1.3, PHP 5.4.3) and get the following from 'amqp_publisher.php':

< 60,40: Basic.publish
< [hex]:
0000  02 00 01 00 00 00 1A 00  3C 00 00 00 00 00 00 00   ........ <.......
0010  00 00 0E 90 00 0A 74 65  78 74 2F 70 6C 61 69 6E   .....te xt/plain
0020  02 CE                                              .Î

< [hex]:
0000  03 00 01 00 00 00 0E 54  68 69 73 20 69 73 20 61   .......T his is a
0010  20 74 65 73 74 CE                                   testÎ

< [hex]:
0000  01 00 01 00 00 00 0B 00  14 00 28 00 00 00 00 00   ........ ..(.....
0010  00 00 CE                                           ..Î

< 20,40: Channel.close
waiting for 20,41
waiting for a new frame
> 20,41: Channel.close_ok
< [hex]:
0000  01 00 00 00 00 00 0B 00  0A 00 32 00 00 00 00 00   ........ ..2.....
0010  00 00 CE                                           ..Î

< 10,50: Connection.close
waiting for 10,51
waiting for a new frame
*> 10,51: Connection.close_ok*
*closing socket*

And this from the consumer script:

< 60,20: Basic.consume
waiting for 60,21
waiting for a new frame
> 60,21: Basic.consume_ok
waiting for any method
waiting for a new frame
*> 60,60: Basic.deliver*
*waiting for a new frame*
*waiting for a new frame*
*
*
*--------*
*This is a test*
*--------*
*< [hex]:*
*0000  01 00 01 00 00 00 0D 00  3C 00 50 00 00 00 00 00   ........ <.P.....*
*0010  00 00 01 00 CE                                     ....Î*
*
*
*< 60,80: Basic.ack*

What could be the reason that the message is not being delivered?
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