darenpang commented on issue #42136:
URL: https://github.com/apache/airflow/issues/42136#issuecomment-2466006475
I had the same problem when changing sequentialexecutor to localexecutor.
After some test , I find I must make parallelism equal to CPU core number .
with t3.large(CPU core :2)
parallelism =32 (default) NG
parallelism =4 most of the tasks are NG , but some OK
parallelism =2 all OK
with t3.xlarge(CPU core :4)
parallelism =4 all OK
But is this the expected action ? I'm not sure .
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