On Tue, Jan 26, 2021 at 9:48 PM Schoonjans, Tom (RFI,RAL,-) < Tom.Schoonjans@rfi.ac.uk> wrote:

Hi Yuval,

I worked on this earlier today with Tom Byrne and I think I may be able to provide some more information.

I set up the RabbitMQ server myself, and created the exchange with type ’topic’ before configuring the bucket.

Not sure if this matters, but the RabbitMQ endpoint is reached over SSL, using certificates generated with Letsencrypt.

it actually does. we don't support amqp over ssl. feel free to open a tracker for that - as we should probably support that! but note that it would probably be backported only to later versions than nautilus.

Many thanks,

Tom

Dr Tom Schoonjans

Research Software Engineer - HPC and Cloud

Rosalind Franklin Institute Harwell Science & Innovation Campus Didcot Oxfordshire OX11 0FA United Kingdom

https://www.rfi.ac.uk

The Rosalind Franklin Institute is a registered charity in England and Wales, No. 1179810 Company Limited by Guarantee Registered in England and Wales, No.11266143. Funded by UK Research and Innovation through the Engineering and Physical Sciences Research Council.

On 26 Jan 2021, at 19:37, Yuval Lifshitz <ylifshit@redhat.com> wrote:

Hi Tom, Did you create the exchange in rabbitmq? The RGW does not create it and assume it is already created? Could you increase the log level in RGW and see if there are more log messages that have "AMQP" in them?

Thanks,

Yuval

On Tue, Jan 26, 2021 at 7:33 PM Byrne, Thomas (STFC,RAL,SC) < tom.byrne@stfc.ac.uk> wrote:

...

Hi all,

We've been trying to get RGW Bucket notifications working with a RabbitMQ endpoint on our Nautilus 14.2.15 cluster. The gateway host can communicate with the rabbitMQ server just fine, but when RGW tries to send a message to the endpoint, the message never appears in the queue, and we get this error from in the RGW logs:

2021-01-26 16:28:17.271 7f0468b1f700 1 push to endpoint AMQP(0.9.1) Endpoint URI: amqp://user:pass@host:5671 Topic: ceph-topic-test Exchange: ceph-test Ack Level: broker failed, with error: -4098

We've confirmed the URI is correct, and that the gateway host can send messages to the RabbitMQ via a standalone script (using the same information as in the URI). Does anyone have any hints about how to dig into this?

Cheers, Tom

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