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Posted to notifications@superset.apache.org by "dosubot[bot] (via GitHub)" <gi...@apache.org> on 2026/05/02 03:08:46 UTC
Re: [D] superset k8s deployment via helm [superset]
GitHub user dosubot[bot] edited a comment on the discussion: superset k8s deployment via helm
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A 500 error after login in Superset on EKS via Helm with internal cache and external RDS is almost always due to a failure in either the cache or database layer, or a misconfiguration that impacts session or bootstrap data loading. The most common causes are:
- Loss of connectivity to your RDS instance (check DB credentials, network policies, or RDS health).
- Cache backend issues: if Redis (or your cache) is unavailable or misconfigured, Superset may fall back to using the metadata DB for cache, making DB connectivity even more critical. Some users have reported that using AWS Elasticache for Redis caused similar issues, and switching to the Redis Helm chart resolved it [(source)](https://github.com/apache/superset/discussions/33840).
- Configuration drift: changes in secrets, environment variables, or Helm values (especially SECRET_KEY, DB credentials, or cache config) can break authentication/session handling and cause 500s [(source)](https://github.com/apache/superset/issues/33938).
- Missing dependencies: if your bootstrap script or image is missing required Python packages (like psycopg2-binary for PostgreSQL), you can get runtime errors [(source)](https://github.com/apache/superset/issues/33938).
- Readiness/liveness probe failures or pod restarts can disrupt service and trigger 500s.
To troubleshoot:
1. Check Superset pod logs right after reproducing the error (`kubectl logs <pod>`) for stack traces or DB/cache errors.
2. Validate RDS connectivity from your pods (network, credentials, DB health).
3. Validate cache backend connectivity and configuration.
4. Check for recent changes in Helm values, secrets, or environment variables.
5. Make sure your SECRET_KEY is unique and not the default.
If you can share the relevant log lines from the time of the 500 error, it will help pinpoint the root cause.
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GitHub link: https://github.com/apache/superset/discussions/36687#discussioncomment-15275261
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