I'm getting an error where a downstream task has a TriggerFailed error but the upstream task that it depends on is pending, not failed. This is the error message I am seeing: "Trigger was "all_successful" but some of the upstream tasks failed." Any ideas?

Hey @Andrew Hannigan, I don’t have any ideas yet. Will look into this more tomorrow. Just gonna ask a few questions to get more details. Regarding that pending task, does it really not run? Or does it start but the state doesn’t change? Is it a mapped task? Are you using a DaskExecutor? What RunConfig are you using? Do you see this happen all the time or just sometimes? Are there timeouts or retries on that pending task?

This turned out to be a combination of out of memory issues at the ECS task as well as a difficult to debug API error Ive seen previously. I’ve resolved the immediate issue for now. Im going to try to work on a script replicating the API error message this week. @Zach Angell we had worked on this before, I think I’ll be able to replicate it now that I understand the issue more.

Oh man I remember exactly what you’re talking about with the NULL flow-id or something when running a flow. Yes a way to replicate would be good. Thanks for circling back and providing details.