<p dir="auto">I've setup the default dags that come with the installation. Celery/RabbitMQ is working now and when I run a task, I get this error:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="sqlalchemy.exc.IntegrityError: (sqlite3.IntegrityError) UNIQUE constraint failed: task_instance.task_id, task_instance.dag_id, task_instance.execution_date [SQL: u'INSERT INTO task_instance (task_id, dag_id, execution_date, start_date, end_date, duration, state, try_number, hostname, unixname, job_id, pool, queue, priority_weight) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)'] [parameters: ('print_the_context', 'example_python_operator', '2015-01-01 00:00:00.000000', '2015-07-28 05:27:40.692490', None, None, 'running', 1, 'SRV01', 'root', '8', None, 'celery', 11)]"><pre class="notranslate"><code class="notranslate">sqlalchemy.exc.IntegrityError: (sqlite3.IntegrityError) UNIQUE constraint failed: task_instance.task_id, task_instance.dag_id, task_instance.execution_date [SQL: u'INSERT INTO task_instance (task_id, dag_id, execution_date, start_date, end_date, duration, state, try_number, hostname, unixname, job_id, pool, queue, priority_weight) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)'] [parameters: ('print_the_context', 'example_python_operator', '2015-01-01 00:00:00.000000', '2015-07-28 05:27:40.692490', None, None, 'running', 1, 'SRV01', 'root', '8', None, 'celery', 11)]
</code></pre></div>
<p dir="auto">I have a DAG I want to run at 10:30am and 3:30pm every day, but I'm not sure what the best way to specify this is in Airflow.  I can't just set the schedule interval on a single DAG, because the interval between jobs is not uniform (alternates between 5 and 19 hours).</p>
<p dir="auto">Is there an easy way to make a DAG for the 10:30 case, and then duplicate it with a different name and change the start time to 3:30pm?</p>