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I think something similar to our product would be people using their webcam to get Snapchat masks on their faces, and the calculated face points are responded on from the server, then the client-side draw the mask on the user's face.

For example, imagine a situation where a NATS Streaming server is restarted and the clock is changed.

We can also enforce a deadline on the respondent replies, which makes Survey particularly useful for service discovery.

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"High-throughput" is the top reason why over 95 developers like Kafka, while over 13 developers mention "Fastest pub-sub system out there" as the leading cause for choosing NATS.

I will point out areas where I suspect the result could be improved with a little tuning, but I have tried to resist the temptation to do any fiddling myself to improve the results.

NATS Streaming provides some additional features over Kafka at the cost of some added state on the server.

Regarding your use case I will consider using RabbitMQ if your intent is to implement service inter-communication kind of thing.

This has become problematic for the business companies to decide which messaging system is the most suitable for a specific application.

As I discussed in my nanomsg overview, there are a lot of really interesting applications of this.