How to choose NoSQL database engine?
- by Poma
We have a database with following specs:
30k records, 7mb in size
20 inserts/second
1000 updates/second
1000 range selects/second, by secondary index, approx 10 rows each
needs at least one secondary index
needs some mechanism to expire keys if they are not updated for 75 secs (can be done via programmatic garbage collector but will require additional 'last_update' index and will add some load)
consistency is not required
durability is not required
db should be stored in memory
For now we use Redis, but it does not have secondary index and it's keys index:foo:* is too slow. Membase also does not have secondary index (as far as I know). MongoDB and MySQL memory engine have table-level locks. What engine will fit our use case?
