On Wed, Feb 26, 2020 at 02:45:24PM +0000, Jeremy Cline wrote: > > FYI before I left the team I started hacking up a replacement[0]. My > design focused on how to get as rich a feature set as I could using > only AMQPs currently available filtering features. There's a couple > feature differences for end-users: > > * Users can filter on message importance based on > fedora_messaging_severity and any documented optional header[1]. > Users can also provide AMQP-formatted topics they'd like to receive > notifications for (again, with a severity filter). There's no running > arbitrary regex over messages to filter.
That may be enough. I guess we will need to look at the use cases here and see if there's other ones that need some kind of regex... > > * Batch delivery is only available at fixed intervals, unlike the > current system which takes how many pending messages there are as > well. > > This puts all the responsibility of filtering the messages for each > user on RabbitMQ (which is very good at filtering messages and keeping > them until a user wants them). Each user gets a message queue in the > broker, and all the notification service needs to do is make sure the > bindings are set up to filter messages into the queue and dequeue + > deliver the message. The prototype is using Twisted for that. I like a lot about this plan. ;) kevin
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