regularly I have to create a clusters from scratch and test their performances when indices contain data at least from 20 days. The possibility to have a data lake will give me the chance to avoid to wait for that period. So I started to think about Rally usage.
I tried to create a custom track from an already existing index on a test cluster.
Operation was completed correctly but I would like to know if, from your point of view, this could be a good way to create a data lake.