Dagster: Limiting Sensor Runs Might not Solve your Problem

Roel M. Hogervorst


Categories: blog Tags: dagster 100DaysToOffload TIL queue

We had an issue where we wanted to limit when jobs were kicked off. This is relatively easy, you can add a check in the sensor for current time.

However, that does not completely solve the issue. Because the sensor throws new jobs into the job-queue, but the queue does not care about time, so if your sensor puts a lot of jobs in the queue and the queue slowly empties you still have the jobs running when you don’t want to run them.

I don’t think there is a way to prevent this from happening. If you do want to prevent this from happening, you need to change the way you set up the work, make the jobs run on a schedule in stead of a sensor.

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