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https://issues.apache.org/jira/browse/AIRFLOW-1172?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kengo Seki reassigned AIRFLOW-1172:
-----------------------------------
Assignee: Kengo Seki
This is a limitation of croniter rather than Airflow. [I'd send a PR to
croniter, and now it's merged and released as
0.3.17|https://github.com/taichino/croniter/pull/84]. So just updating croniter
enables this feature.
> CroniterNotAlphaError: [0 20 * * 1#1] is not acceptable
> -------------------------------------------------------
>
> Key: AIRFLOW-1172
> URL: https://issues.apache.org/jira/browse/AIRFLOW-1172
> Project: Apache Airflow
> Issue Type: Bug
> Components: DagRun, scheduler
> Affects Versions: 1.8.0
> Environment: Docker base image: `python:2.7-slim`
> Reporter: Nico Arianto
> Assignee: Kengo Seki
> Labels: scheduling
>
> Based on the
> [dag-runs|https://airflow.incubator.apache.org/scheduler.html#dag-runs]
> documentation that we can refer to [cron
> expression|https://en.wikipedia.org/wiki/Cron#CRON_expression] as a str which
> in `Day of week` allows special character hash (`#`).
> Unfortunately Airflow:1.8.0 doesn't support special character hash which in
> my case we need to specify the DAG run to only triggers every 1st Tuesday of
> the month.
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