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Minor gripe - why can I not execute an entire DAG (end to end) from the UI? Also trying to execute single tasks from the UI using the "run" functionality gives a CeleryExecutor requirement error... sorry, I know this isn't the help forums but it sounds like the most trivial tasks were overlooked.

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Actually you can but it is a bit clunky. Go to Browse > Dag Runs and select the 'Create' tab. This pulls up a form where you type in the Dag ID, enter the start time (set to now but keep in mind it is the local time of the web server), and a Run ID.

Totally agree there should be both a simple Start Run and Stop Run button.

What I've been doing when debugging is flipping the DAG switch to off, clearing the first task in the DAG so the whole thing re-runs, then back to on.

Azkaban has this.

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