I keep receiving an "Internal Server Error" redirect when I click the "Open Airflow UI" link in the Amazon MWAA console; it’s just a blank white screen with "Internal Server Error" in big black text. I was being successfully redirected to the Airflow UI when I set up the environment, but it appeared to break overnight. It then started working again yesterday, then broke again today overnight.
Please let me know if I can provide further details–thank you!
I have tried and confirmed the following:
- Region is correct with us-west-2
- Logging in and back out as root user with access to everything
- VPC setup and permissions are the same as when the Open Airflow UI was successfully redirecting me
- VPC setup is with the standard AWS Cloudformation template that is provided during MWAA setup
- A token is provided after the
login = trueportion of the URL redirect - Maintenance window is set as 7 AM UTC, Sunday, so it shouldn’t be occurring now
I expect to be redirected to the Airflow UI successfully.
2
Answers
This is a bug that I expect to be fixed fairly quickly. As a workaround you can delete your browser’s cookie whose name corresponds to your Airflow UI link, refresh, and you’re good to go.
It is a known issue of MWAA. I am unsure what is the root cause of it, but I’ve seen this issue for a while. I am using MWAA Airflow 2.4.3. It happened when I tried to access MWAA Airflow UI the day after I deployed it.
You have to delete the cookie. I’ll use Chrome to demonstrate it.
Open the
Chrome Developer Toolsand clickApplicationthenCookie:Click
sessionand delete the value.Now go back to AWS console MWAA environment page and click the
Open Airflow UIbutton again, you should be able to access Airflow UI.Hope this helps.