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Virtual memory was deprecated some time ago, there is no support for larger than RAM data anymore.

What do you mean by deprecated? As far as I know, Swap partition/files are alive and kicking in Linux. There are even recommendations of the amount of swap you should setup depending on the available RAM.

They're talking about the Redis Virtual Memory feature not Linux Swap:

https://redis.io/topics/virtual-memory

Ah TIL, that’s too bad.

Deprecated in favor of Redis Flash (behind an enterprise subscription)

All problems are solvable by switching to AWS EC2 which doesn't cost money to transfer Data out of S3 to begin with.

You posted this three times. That's overkill.

If you’re transferring the resulting data to your end customer, it still costs (quite a bit).