I am getting Failed to submit supervisor: Request failed with status code 502 when I am submitting an ingestion spec using the unified console UI through the router in a 4 node cluster. The ingestion spec works when I am submitting it to a standalone installation when I am running Druid according to instructions of the tutorial.
The complete description is in the following StackOverflow link:
The logs don’t show any error.
What causes this error, and how can I further debug the problem?