# ask-community

Sheng Han Lim

03/13/2023, 4:37 PM
How do I find out information about how each run is being triggered? When I materialize all assets in dagit - some assets get materialized twice or more in separate runs. Is there a way in UI or logs to trace how dagster start each runs?


03/13/2023, 10:27 PM
usually it’ll be in the run tags
in each run’s page, you can click the top right to view the tag
if it’s kicked off by sensor, schedule, or backfill, you can tell it from here^

Sheng Han Lim

03/14/2023, 12:26 AM
Thanks @yuhan! In my case I'm triggering a single-run backfill for 6 partitioned assets, but that backfill run triggers or 'spawns off' a separate duplicate run for one of the 6 assets. I'm trying to find out what causes that duplicate run that's not needed - the run tags show the same backfill ID as the main run - so I have no clue why it triggered.
For example, if a particular asset has more than one upstream asset - can we know specifically which upstream asset triggered the materialization?