Rolling back Changes in lakeFS ↩️

Our intrepid user (you) merged a change back into the main branch and realised that they had made a mistake 🤦🏻.

The good news for them (you) is that lakeFS can revert changes made, similar to how you would in Git 😅.

From your terminal window run lakectl with the revert command:

docker exec -it lakefs \
    lakectl branch revert \
	    lakefs://quickstart/main \
	    main --parent-number 1 --yes

You should see a confirmation of a successful rollback:

Branch: lakefs://quickstart/main
commit main successfully reverted

Back in the object page and the DuckDB query we can see that the original file is now back to how it was:

Bonus Challenge

And so with that, this quickstart for lakeFS draws to a close. If you’re simply having too much fun to stop then here’s an exercise for you.

Implement the requirement from above correctly, such that you write denmark-lakes.parquet in the respective branch and successfully merge it back into main. Look up how to list the contents of the main branch and verify that it looks like this:

object          2023-03-21 17:33:51 +0000 UTC    20.9 kB         denmark-lakes.parquet
object          2023-03-21 14:45:38 +0000 UTC    916.4 kB        lakes.parquet

Finishing Up

Once you’ve finished the quickstart, shut down your local environment with the following command:

docker-compose down