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Is erlang mnesia db suitable for saving millions or more records?

I wonder if mnesia db is suitable for saving millions or more records or not?

  • because mnesia storage place has only 3 ram, disc_only, disc. It is not possible to save part of the records in ram. I suspect that if I choose discto store and the number of records is huge, the efficiency of the hopper buffer is very low, and if disc_onlyfor storage and speed it also slows down.

So, in each situation, the wrong choice to save many records, is this right?

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Mnesia is not so bad, but ...

you can read here why mnesia suxs is not: http://noss.github.com/2009/04/04/mnesia-sucks-not.html

And here is the answer to your question: Very large Mnesia tables in production

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