On September 19, 2024, at 06:30 PM to September 20 at 05:30 PM UTC, the SAP LeanIX integration to Signavio was unresponsive and unable to perform actions.
The incident was caused by a malformed URL used by one of our microservices. The faulty behavior was triggered by a DNS change, which rerouted the requests of the microservice through a different backend, with stricter URL handling. The rerouting to the new backend caused the requests to fail due to the malformed URL.
The incident was resolved by rolling back the DNS changes temporarily. The root cause was then addressed by fixing the URL creation process to ensure no malformed URLs are in use.
To prevent a recurrence of similar issues, we have implemented mechanisms that ensure no malformed URLs are used within the affected microservice.
Additionally, we will enhance monitoring and alerting systems to quickly detect and respond to similar issues in the future.