Can I configure MongoDB to be In-Memory?

Question

I am interested in using a database that will allow high performance, with an expected requirement of cluster for a massive horizontal scaling.

We are looking into using MongoDB, does anyone know if I can use it InMemory (i.e. in the RAM - for performance reasons)?

Tnx

Answer 1

A performance boost approach you can take is to use a RAM disk

e.g.:

mongod --smallfiles --noprealloc --nojournal --dbpath <ramdisk mounted localtion>

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See also:

• http://edgystuff.tumblr.com/post/49304254688/how-to-use-mongodb-as-a-pure-in-memory-db-redis-style

• Create RAM Disk linux: https://unix.stackexchange.com/questions/66329/creating-a-ram-disk-on-linux/66331#66331

• http://www.phpmoadmin.com/mongodb-in-memory-database