[Koha-bugs] [Bug 22417] Add a task queue

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=22417

--- Comment #342 from David Cook <dcook at prosentient.com.au> ---
Recently, I have been noticing issues on a Ubuntu 18.04 server where RabbitMQ
has been running.

Every few days, there would be CPU soft locks and the server would hang.
Restarting it would resolve the problem for a few days before it would happen
again.

After disabling RabbitMQ, the problem appears to have gone away.

This suggests the problem was with RabbitMQ running collocated on the same
server as Koha (with 100+ Starman processes running). 

Now that version of RabbitMQ was from the Ubuntu 18.04 apt repositories, and it
is fairly old.

The RabbitMQ website's own recommendation is to use newer versions of RabbitMQ
as per https://www.rabbitmq.com/install-debian.html. 

I will be trying https://bintray.com/rabbitmq/debian/rabbitmq-server shortly.

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