I’m building a Rails web application that needs to work with huge amounts of data - we’re talking about several billion records here. The frontend is built with Ruby on Rails and I need to figure out the best backend database solution.
Right now I’m thinking about using distributed database systems. I’ve been researching different options like distributed NoSQL databases and big data platforms, but I’m running into some issues.
Some solutions I looked at don’t have great Ruby integration, which makes development harder. Others seem like they might not be stable enough for production use yet.
The data usage pattern is pretty specific - most of the time (about 95%) the app will just be reading data. But occasionally we need to import large batches of new data, sometimes 30-40MB worth of records at once. These imports happen in chunks rather than all at once.
What database backend would you recommend for handling this kind of scale with a Rails frontend? I’m looking for something that can handle billions of records efficiently while still working well with Ruby.
clickhouse is a solid choice for what you need, especially for analytics. The ruby gem works like a charm too. We switched from postgres facing similar scaling issues and wow, the performance improvement was huge!
what queries do u think you’ll run the most? your read patterns really matter for choosing the right db. also, what’s your budget like? distributed solutions can get pricey fast with billions of records.
PostgreSQL with partitioning and read replicas works great for this scale in Rails apps. Partition your tables to split those billions of records into manageable chunks, then use multiple read replicas for the heavy read load. For batch imports, PostgreSQL’s COPY command with prepared transactions makes those 30-40MB imports surprisingly fast. I’ve seen well-tuned PostgreSQL setups outperform distributed systems in Rails apps - you get excellent ActiveRecord integration and a mature ecosystem. Add PgBouncer for connection pooling and handle read/write splitting at the app level. Way less operational headache than distributed NoSQL, and you keep ACID compliance for the important stuff.