Also, separate question: how do I control concurrency in an asset backfill job?

Hey Spencer - I just wrote up a short guide on this: https://github.com/dagster-io/dagster/discussions/12251

This is great! Thanks. Is there a list somewhere of the tag key-values that dagster provides by default? https://docs.dagster.io/concepts/ops-jobs-graphs/metadata-tags#dagster-provided-tags lists a bunch that exist, but it isn’t comprehensive, and doesn’t say their format.

Take a look at: https://github.com/dagster-io/dagster/blob/master/python_modules/dagster/dagster/_core/storage/tags.py

Excellent, thanks