Cloudant is a distributed database system [http://cloudant.com], where each logical database is represented by a specific number of shards in a cluster (refereed to as Q). Each shard is furthermore stored N times in the cluster, hence each document will be stored on more than one node in the cluster…
Daniel Wertheim
Sitting here, reading the Amazon Dynamo paper [http://s3.amazonaws.com/AllThingsDistributed/sosp/amazon-dynamo-sosp2007.pdf], written in 2007, finding references from way back in 1978 all the way to 2007. If we group them by decades it looks like this: ” (Sadalage &am…
Daniel Wertheim
> The N+1 is evil. I want referential integrity. I want... "Hold it right there Mr!" A document-oriented Db (DOD) is not an RDBMS! If you are having an N+1 scenario or feeling a pain with references, you should probably first have a look at your model and your chosen data-persistence…
Daniel Wertheim
Now it’s time to have a quick peak on this whole “schema-less” thing that NoSQL products offer. We will of course focus on MongoDB when we compare a document-oriented DB against a more traditional, relational DB commonly found in RDBMS like SQL Server. Previous articles are: * Getting started (ag…
Daniel Wertheim