Hi FierceFly22

Hi, does anyone know where trains stores tensorboard data

Tesnorboard data is stored wherever you point your file-writer to 🙂
What trains is doing is while tensorboard writes it's own data to disk, it takes the data (in-flight) and sends it to the trains-server. The trains-server puts everything in the DB, so later everything is viewable & searchable.
Basically you don't need to store your TB files after your experiment is done, you have all the data in the trains-server (accessible through the UI / code).
That said if you need more advanced TB features, like profiling tSNE etc, then you can open your RB protobuf file 🙂
Make sense?