[Edge-computing] Distributed systems first blog post

lebre.adrien at free.fr lebre.adrien at free.fr
Wed Jul 28 14:53:23 UTC 2021


@Ildiko, thanks once again for this draft. 

@All, It is still not clear whether the ''centralization'' word is clear (in particular in this sentence, "... we will need autonomy and centralization..."
By centralisation here we mean that we would like to be able to administrate/use all edge sites (or edge areas) like if it was a single DC. However this ''centralisation'' can be implemented in different manners. 
Would it be possible to qualify this term or to make it clear that it is not a centralized system as such (i.e. a single point of failure with all well known limitation such as scalability etc.)?

@Rob, if you have time, can you please give a look to the questions I put in the main etherpad: https://etherpad.opendev.org/p/ecg-untangling-the-edge. 
Actually, I'm not sure I'm capturing well t the exact services you expect from this ''centralised'' system. If I correctly understood, it looks like it is a golden node that is used to (re)configure/(re)synchronise the edge sites. If I fully agree such services are mandatory to manage/interact with each independent control plane (one per edge site/area), this system should also provide the right abstractions/mechanisms to manage the life cycle of the edge applications (which can be deployed across multiple edge sites/areas). In other words, we need independent control loops for each edge area and at least one control loop to manage applications. 

Without discussing now whether such a system could be implemented in a (geo-)distributed manner or whether we need one global application control loop or one per application, I would appreciate if  we could highlight the fact that the control loop at the higher level (i.e. ''the centralised system you mention in your initial text'') is more complex than a golden node that is used to keep each edge site synchronised. . 

Hope this helps move forward the discussion ;-)

----- Mail original -----
> De: "Ildiko Vancsa" <ildiko at openstack.org>
> À: "edge-computing" <edge-computing at lists.openstack.org>
> Envoyé: Lundi 26 Juillet 2021 17:17:30
> Objet: [Edge-computing] Distributed systems first blog post
> Hi,
> As our discussions have been evolving around distributed systems and
> edge computing I typed up the first blog entry to kick off the mini
> series about this topic. I was focusing on questions and
> highlighting some of our debates as we have a lot of good content on
> the main etherpad that don’t fit into one blog post neither did we
> finish discussing some of them. I’m also hoping that we might be
> able to attract more people to join the conversation.
> The current version of the blog is here for review before it gets
> posted on superuser.openstack.org:
> https://etherpad.opendev.org/p/ecg-distributed-edge-mini-series
> Please let me know if you have any comments or questions to this
> piece or the discussion itself.
> Thanks,
> Ildikó
> ———
> Ildikó Váncsa
> Senior Manager, Community & Ecosystem
> Open Infrastructure Foundation
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> Edge-computing at lists.openstack.org
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