Document Understanding Server Returned 503 (Service Unavailable)

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Issue with Intelligent Form Extractor: DocumentUnderstanding server returned 503 (Service Unavailable) Additional details: No healthy upstream.

Troubleshooting steps:

  1. kubectl -n monitoring get svc

If grafana is not exposed on NodePort, then edit the service and change the type to "NodePort"

grafana NodePort 10.96.1.240 <none> 3000:30902/TCP 89d

  1. Whitelist the NodePort, in this case 30902 port has to be whitelisted

  1. Open the grafana dashboard via browser http://NodeIP:NodePort

  1. user name and password to login will be found here

kubectl -n monitoring get secret grafana-admin -o yaml

echo -n 'xxxx' | base64 -d

  1. Left Side Pane -> Dashboards -> Manage

See bunch of out of box dashboards here which will assist debugging out of RAM or CPU or disk issues.