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Asked: 2026-05-31T19:31:44+00:00

I need to store maybe 250 million records of String -> String mappings and

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I need to store maybe 250 million records of String -> String mappings and a database seems overload for this sort of thing.

I can’t store this in memory as it will run out of heap space. I could extend the heap space, but I’d prefer not to do this.

I want as fast access as I can get to a single mapping as possible and wanted to know the best way to go about this.

The initial String is unique and what I will be searching by. I also know the range the string length will lie in, but its mapped value could be any length.

Is it possible to get something as fast as a database for searching? I’m guessing not but just wanted to be sure.

I’m working in Java, but I assume this will be language independent.

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1 Answer

  1. Editorial Team

    Redis http://redis.io/ is what you need!

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