Greetings, Zaqar team!
As you may be aware, I've been working with other folks in the community on documenting a vision for OpenStack clouds (formerly known as the 'Technical Vision') - essentially to interpret the mission statement in long-form, in a way that we can use to actually help guide decisions. You can read the latest draft here:

We're trying to get feedback from as many people as possible - in many ways the value is in the process of coming together to figure out what we're trying to achieve as a community with OpenStack and how we can work together to build it. The document is there to help us remember what we decided so we don't have to do it all again over and over.

The vision is structured with two sections that apply broadly to every project in OpenStack - describing the principles that we believe are essential to every cloud, and the ones that make OpenStack different from some other clouds. The third section is a list of design goals that we want OpenStack as a whole to be able to meet - ideally each project would be contributing toward one or more of these design goals.

The two design goals that Zaqar contributes to are 'Infinite, Continuous Scaling' and 'Built-in Reliability and Durability'. It allows application developers to do asynchronous messaging and have the scaling handled by the cloud, so they can send as many or as few messages as they need without having to scale in VM-sized chunks. And it offers reliable at-least-once delivery, so application developers can rely on the cloud to provide that, simplifying the fault tolerance requirements for the rest of the application.

Of course Zaqar can also fulfill a valuable role carrying messages from the OpenStack services to the application. This capability will be critical to achieving the ideals outlined in the 'Application Control' section, since delivery of event notifications from the cloud services to the application should be both asynchronous (the cloud can't wait for a user application) and reliable (so some sort of queuing is required).

If you would like me or another TC member to join one of your team IRC meetings to discuss further what the vision means for your team, please reply to this thread to set it up. You are also welcome to bring up any questions in the TC IRC channel, #openstack-tc - there's more of us around during Office Hours (, but you can talk to us at any time.

Feedback can also happen either in this thread or on the review

If the team is generally happy with the vision as it is and doesn't have any specific feedback, that's cool but I'd like to request that at least the PTL leave a vote on the review. It's important to know whether we are actually developing a consensus in the community or just talking to ourselves :)

many thanks,

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