How to make it scale?

[fritzblue]

I've been extremely intrigued by the ideal of using Lambda + Dynamo for a GraphQL-powered backend. However, Dynamo's "scan" operation won't scale. What kind of steps could be taken to take this same model and make it more scalable at the DB layer?

[weitzman]

Many users of this project are likely to run into the same question so a bit more guidance from the app would be ideal. Until then, here is what AWS says on query/scan performance.

[weitzman]

A couple relevant links for pagination+graphql

• https://github.com/dowjones/graphql-dynamodb-connections
• https://facebook.github.io/relay/graphql/connections.htm

[chadkouse]

@user453584 Why doesn't scan scale?

[jes-carr]

@chadkouse From the docs:

A Scan operation always scans the entire table or secondary index, then filters out values to provide the desired result, essentially adding the extra step of removing data from the result set. Avoid using a Scan operation on a large table or index with a filter that removes many results, if possible. Also, as a table or index grows, the Scan operation slows.