"Data Lakes and Streams with S3 and Lambda" by: Justin Garrison You have a data lake in S3 and it is providing great value. But it's formatted specifically for a single application and difficult to reuse. Should you copy the data and reformat it? Will you need to do that nightly as part of your ETL pipeline? How expensive is it for you to use your own data? In this talk, we'll look at options to transform your data on the fly with Lambda and Python.