Golang Go - Exception (501) Reason: "EOF"

[cl...@catchandrelease.tv]

I get this exception when I make this call:

conn, err := amqp.Dial(amqpUrl)

RabbitMQ 3.7.8, on the latest AMQP library commit 70e15.

Two weird things:

1. It connects fine to the Heroku hosted CloudAMQP service on RabbitMQ 3.7.7

2. I can connect via the Ruby client just fine.

Thanks for any advice.

[cl...@catchandrelease.tv]

Regarding the URL's, I've tried both:

conn, err := amqp.Dial("amqp://guest:guest@localhost:15672/")

I also made a second user, with no password, and gave access to a new virtual host, like

conn, err := amqp.Dial("amqp://dev@localhost:15672/flycaster")

[Luke Bakken]

Hello,

What is logged by RabbitMQ?

Thanks,

Luke

[cl...@catchandrelease.tv]

On Friday, October 12, 2018 at 1:42:10 PM UTC-7, Luke Bakken wrote:

Hello,

What is logged by RabbitMQ?

Thanks,

Luke

If I connect via Ruby, I get this:

==> /usr/local/var/log/rabbitmq/rab...@localhost.log <==

2018-10-12 13:55:51.072 [info] <0.15548.0> accepting AMQP connection <0.15548.0> (127.0.0.1:59413 -> 127.0.0.1:5672)

2018-10-12 13:55:51.115 [info] <0.15548.0> connection <0.15548.0> (127.0.0.1:59413 -> 127.0.0.1:5672): user 'guest' authenticated and granted access to vhost '/'

2018-10-12 13:55:51.283 [info] <0.15561.0> accepting AMQP connection <0.15561.0> (127.0.0.1:59414 -> 127.0.0.1:5672)

2018-10-12 13:55:51.283 [info] <0.15564.0> accepting AMQP connection <0.15564.0> (127.0.0.1:59415 -> 127.0.0.1:5672)

2018-10-12 13:55:51.288 [info] <0.15564.0> connection <0.15564.0> (127.0.0.1:59415 -> 127.0.0.1:5672): user 'guest' authenticated and granted access to vhost '/'

2018-10-12 13:55:51.288 [info] <0.15561.0> connection <0.15561.0> (127.0.0.1:59414 -> 127.0.0.1:5672): user 'guest' authenticated and granted access to vhost '/'

2018-10-12 13:55:51.486 [info] <0.15587.0> accepting AMQP connection <0.15587.0> (127.0.0.1:59416 -> 127.0.0.1:5672)

2018-10-12 13:55:51.491 [info] <0.15587.0> connection <0.15587.0> (127.0.0.1:59416 -> 127.0.0.1:5672): user 'guest' authenticated and granted access to vhost '/'

However if I try via Go, I get zilch. It's like RabbitMQ never sees any request. Again, it works totally fine if I fill in the CloudAMQP address.

[cl...@catchandrelease.tv]

Well, hot damn, it works if I take out the port!

amqpUrl            = "amqp://guest:guest@localhost/

Results in:

2018-10-12 14:07:49.874 [info] <0.15612.0> accepting AMQP connection <0.15612.0> (127.0.0.1:59545 -> 127.0.0.1:5672)

2018-10-12 14:07:49.876 [info] <0.15612.0> connection <0.15612.0> (127.0.0.1:59545 -> 127.0.0.1:5672): user 'guest' authenticated and granted access to vhost '/'

Alright then... thanks!

[cl...@catchandrelease.tv]

Oh, I was giving it the WEB port! I guess the Ruby client worked because it just disregarded the port I specified.

[Michael Klishin]

15672 in amqp.Dial("amqp://guest:guest@localhost:15672/")

is the HTTP API port [1]. Server logs will contain protocol parser exceptions that will incude "GET /".

1. https://www.rabbitmq.com/networking.html#ports

On Sat, Oct 13, 2018 at 12:09 AM <cl...@catchandrelease.tv> wrote:

Oh, I was giving it the WEB port! I guess the Ruby client worked because it just disregarded the port I specified.

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MK

Staff Software Engineer, Pivotal/RabbitMQ