Alternate database backends

varx

The UX looks slick, and I think a more realtime real-time forum is a pretty novel idea.

The only problem is that Redis is an in-memory database, and for a forum like mine, where I want to be able to keep all of the posts, that simply will not work.

If all you're doing is a key value store then check out ueberDB which will give you a ton of database options out of the box. https://github.com/Pita/ueberDB

julian

Hey varx,

We've received a bunch of feedback regarding our choice of using Redis (some positive, some negative).

Conventionally, using Redis is riskier, and to address this, we're planning to introduce several add-on plugins that allow forum data (posts and topics) to be saved in real-time to another database (i.e. couchDB, PostgreSQL, etc), while allowing Redis to drop back to a more conventional role as a cache.

Let me know if you have any other concerns

varx

cool I'll keep an eye on the github for when that functionality becomes available. My servers are already memory bound using redis as a cache, so it's the only thing holding me back from playing around with it.

adarqui

The UX looks slick, and I think a more realtime real-time forum is a pretty novel idea.

The only problem is that Redis is an in-memory database, and for a forum like mine, where I want to be able to keep all of the posts, that simply will not work.

If all you're doing is a key value store then check out ueberDB which will give you a ton of database options out of the box. https://github.com/Pita/ueberDB

Hi varx,

You could always persist from the slave, it's a pretty efficient way to do it. Assuming you will have a master/slave setup for your preferred DB choice, you're going to replicate, so with redis you would do the same (slaveof) and then persist there.

redis persistence:

http://dev.paperlesspost.com/blog/2011/12/21/redis-tips-persistence-only-slaves-and-the-slowlog/

http://redis.io/topics/persistence

Would be nice for these backends to be plugins and not "forced on you", i'd continue to use the redis backend

felglar

I'm really impressed with what I've seen so far. I'm in the same situation as the OP. Redis is kind of a deal breaker for us. I haven't looked at the code yet, so I'm not sure how much effort it would be to support different backends. In my particular case, it would be mongoDB.

psychobunny

If it helps you, I've started a plugin here:

http://try.nodebb.org/topic/161/nodebb-plugin-mongodb-mongodb-plugin

It's still in development - I haven't had the capacity lately to finish it just yet. If anybody wants to take a crack at it though that would be awesome