[9dev]

Redis is a real database. If I wasn’t convinced it could retain data I hand it, I wouldn’t use it in the first place.

Just because it works for your use case right now doesn’t mean there isn’t room for improvements to support others too.

[amtamt]

> Redis is a real database

No, redis is a memory cache, with some ACID like features bolt on.

Even real databases have hard time maintaining consistency across nodes. CAP is a real constraint.

[trumpdong]

> Redis is a real database.

Oh good, then you don't need to do any of the stuff that you suggested to do

[9dev]

These two concerns are not mutually exclusive, the kind of database or data stored within it doesn't give any availability guarantees on its own. Even a single Postgres instance, which I suppose fits your understanding of a real database, is a single point of failure and not a highly available setup: If your database server goes down, clients get errors and the database is thus unavailable.