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Re:Postgres is a great pub/sub and job server (2019) by fouadf on Saturday December 18, 2021 @01:33AM (#29602261)
Good point. My assumption is that the first hit would be memory usage, way before core usage.

There are many options for scaling:

- vertically scale by adding more memory

- start redis instance on another port (takes 1mb) if decided to add more cores on the same vm

- separate data into another vm

- sharding comes out of the box, but that would be my last resort

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