FAQΒΆ
Can a DAG have 1 node/Job?
Yes. You can still have the advantages of auto-retry, DAGStatus monitoring, and other DAG options.
What are some cool uses of DAGs?
In addition to the 1-node DAG, you can submit multiple “layers” of processing one go.
For example: say you want to run analysis code over many input files, then hadd the files, and finally delete all the intermediate files.
This is achievable with a DAG that looks like this:
