What database to use in Erlang for a high-load server?

Question

Erlang

Good time!
I am learning Erlang, I want to start writing a more or less serious project, and then the question arose of which database to use for a highly loaded server.
Hypothetically suppose it's the "killer" Instagram or WhatsApp, what would you use for that kind of traffic? Native Mnesia or maybe something else?

Answer 1

Those who have grown to High-Load should not have such questions. On the other hand, initially correct design is good.
Mnesia should not be used as the main repository. Riak - yes.
In order not to waste time on Riak, you can use a library that provides a common interface and start with Mnesia, and in the future, when the project grows to production, transfer to Riak without changing the table schema.
Link: KVS . You can get free support here .

Answer 2

Mnesia is not recommended. Use a normal database of which the sea.

Answer 3

We use MongoDB with rabbitmq (which is built on erlang). Under .net there is a fast, open source provider, so far I really like it :)