[Koha-devel] RabbitMQ / bug 26742: in production message broker on a specific server ?

[dcook at prosentient.com.au]

Hi Zeno,

I certainly do remember you!

I think that you misunderstand a little bit. The RabbitMQ dependency is necessary for both PSGI/Plack and CGI Koha when doing the batch record updates. (Over time, we'll change other parts of Koha to use RabbitMQ for message passing to a background worker as well.)

I admit that I'm not 100% sure what 20.11.x is going to look like. I've been advocating for running RabbitMQ on a separate server, as that is the best practice recommended by the RabbitMQ community, but most patches have required that RabbitMQ runs on the same host as Koha. 

For now, I would say just trust the Koha Debian packages to do the right thing. Or are you not using the Koha Debian packages? 

For what it's worth, I already run RabbitMQ on production servers collocated with Koha, as I created a local tool in Koha that uses RabbitMQ. It shouldn't be too much of a drama.

David Cook
Software Engineer
Prosentient Systems
72/330 Wattle St
Ultimo, NSW 2007
Australia

Office: 02 9212 0899
Online: 02 8005 0595

-----Original Message-----
From: Koha-devel <koha-devel-bounces at lists.koha-community.org> On Behalf Of Zeno Tajoli
Sent: Tuesday, 24 November 2020 10:15 AM
To: koha-devel <koha-devel at lists.koha-community.org>
Subject: [Koha-devel] RabbitMQ / bug 26742: in production message broker on a specific server ?

Hi to all,

I hope many of yours rember me (more then two years ago !!).
I'm helping a library (in Italy) to update to Koha 20.11.x

I read mailing list and bugs about addiction of RabbitMQ as task queue / message broker.

I understand that all start from using Plack, if I use it there are problem with task queue.
 From 20.11.x if you use Plack, you need to use RabbitMQ, at least for batch update record tools.

So, what is the suggestion for a production server ?
To install always RabbitMQ  in specific server ?

Or is a specific server for RabbitMQ only for multi-instance installation ?

I'm working with 250.000 bibliographic records and 1.700 users in single-instance installation.

Cheers
Zeno Tajoli

--
Zeno Tajoli
System Librarian
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