Viewing profile — ethangunderson

Hi, software developer at Cars.com here. While I appreciate the ego boost of thinking that we're somehow better than average, I don't believe this to be true. You can get away with…

Comparing map/reduce in Mongo and Couch is really apples and oranges. They are designe to do two different things. i.e data processing vs building views. Mongo is designed from the…

Full text of their post: https://gist.github.com/fb41d5002822fff18686

Damn, didn't realize you had to be logged in to see the posting about it.

When we talk about consistency, we're talking about taking the database from one consistant state to another. With replica sets, we're still only dealing with one master. We can ge…

If they're doing the same thing, that's just as shitty. But I've been meaning to listen to that episode of the Changelog for awhile now, so thanks for the reminder!

Basho has always had an issue with the way Mogno was architected and marketed, and they have no issue with letting people know. (several blog posts, killdashnine parties) I actuall…

It was a thinly veiled bash on Mongo.

Software engineering is a subset of programming, particularly the subset where people give a shit about the code they ship.

The issue with that is if your DB gets backed and starts queuing writes, the timestamps will be skewed. Obviously this isn't always a show stopper, but a caveat nonetheless.

The first item in the list really bugs me. It's not enough to just tell me not to do something, teach me why it's bad. That way, I can explain to others why this is a mistake inste…

It's worth noting that Twitter has built a lot on top of MySQL to get to the scale they're at. Take FlockDB for example, https://github.com/twitter/flockdb So I guess that statemen…

FWIW, Foursquare's situation was kind of unique. They have a need for all of their data to be in RAM. In most applications, you can define a working set of data. As long as you can…

Just like most things, it's not that simple. For example... Cassandra is good for 'big data' if you're ok dealing with the repercussions of eventual consistency, and questionable p…

It's also missing a bunch of the conversation, making it rather worthless.

Is there a NoSQL database that claims that? I don't know of one. Rather, they attempt to implement different facets of CAP. Also, the CAP theorem, as it stands, is showing its age,…

No system could prevent it, but there are databases(Oracle and MongoDB off the top of my head, and I'm sure there are others) that implement slave delays specifically to help mitig…

Thanks for pointing that out, it's been fixed.

The idea should be that you are picking the right tool for the job. Just because you could just use Postgres, doesn't mean that another data store wouldn't be better suited for you…

Interesting, I didn't know that priority was given to reads(in theory anyways). Thanks for the tip! As for server durability, yes, it has been beaten to death. Yet, I still talk to…

One of the best things to come out the nosql 'movement' is exactly that, no more silver bullets. As much as I like Mongo, I would never blindly recommend it, or any other data stor…