| [iot-sp] IoT Server Event Hub Scalability |
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Hello! I believe one of the key aspect of the IoT Server will be the “blackbox event hub” mentioned in the
https://wiki.eclipse.org/IoT/IoTServerPlatform – that is, the ability for consumers to subscribe to events/feeds. From a scalability and bandwidth perspective, this could however become tricky with
lots of subscribers. A single event could end up generating tons of messages distributed across to all subscribers. One way to work around the bandwidth issue could be that all consumers need to be ‘local’ to an IoT Server. The subscription could then happen between IoT servers (on behalf of the final subscriber), thus minimizing the need for bandwidth,
as an event would be propagated just once between all (subscribed) IoT servers, and then to the ‘local’ devices. On the other hand, having multiple IoT Servers also implies multiple feed “repositories”. By making the servers participate in a peer-to-peer network, we could then share the other server’s feed registry and thus facilitate subscription
to ‘remote’ servers. Another way could be to manage a centralized feed repository where IoT servers would publish their feed registry. Hope this makes sense - looking forward to discuss more. Best, -Regis
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