Airflow does not run dags - airflow

Question

Context: I successfully installed Airflow on EC2, changed things like executor to LocalExecutor; sql_alchemy_conn to postgresql+psycopg2://postgres#localhost:5432/airflow; max_threads to 10.
My problem is when I create a dag which I indicate to be run everyday everything is fine, but when I create a dag to be run like at 10am on Monday and Wednesday Airflow doesn't does not run it. Does anybody know what could I do wrong and should I do in order to fix this issue?
Dag for script which runs fine and properly:
import airflow
from airflow import DAG
from airflow.operators.bash_operator import BashOperator
from datetime import timedelta
args = {
'owner': 'arseniyy123',
'start_date': airflow.utils.dates.days_ago(1),
'depends_on_past': False,
'email': ['exam#exam.com'],
'email_on_failure': False,
'email_on_retry': False,
'retries': 1,
'retry_delay': timedelta(minutes=1),
}
dag = DAG(
'daily_script',
default_args=args,
description = 'daily_script',
schedule_interval = "0 10 * * *",
)
t1 = BashOperator(
task_id='daily',
bash_command='cd /root/ && python3 DAILY_WORK.py',
dag=dag)
t1
Dag for script which should run on Monday and Wednesday, but it does not run at all:
import airflow
from airflow import DAG
from airflow.operators.bash_operator import BashOperator
from datetime import timedelta
args = {
'owner': 'arseniyy123',
'start_date': airflow.utils.dates.days_ago(1),
'depends_on_past': False,
'email': ['exam#exam.com'],
'email_on_failure': False,
'email_on_retry': False,
'retries': 1,
'retry_delay': timedelta(minutes=1),
}
dag = DAG(
'monday_wednesday',
default_args=args,
description = 'monday_wednesday',
schedule_interval = "0 10 * * 1,3",
)
t1 = BashOperator(
task_id='monday_wednesday',
bash_command='cd /root/ && python3 not_daily_work.py',
dag=dag)
t1
I also have some problems with scheduler, it uses to die after being working more than 10 hours, anybody know why does it happen?
Thank you in advance!

Answer 1

Can you try changing the start_date to a static datetime e.g. datetime.date(2020, 3, 20) instead of using airflow.utils.dates.days_ago(1)
Maybe read through the scheduling examples here, to understand why your code didn't work. From that documentation:
Let’s Repeat That The scheduler runs your job one schedule_interval AFTER the start date, at the END of the period