Cloudhub 2.0 Error 431

Anypoint platform is not receiving the request???

There can be several issues that should be checked if MuleSoft Anypoint platform is not receiving the request.
Follow below steps to debug and resolve the issue.

  • Check if the API/APP is up in the Anypoint Runtime manager.
  • Go to logs and search for the string “successfully started”, if this is found then the app is running successfully. Follow the attached image of the sample app for more details.
  • Check the Port on which APP is listening. And use the http(s) accordingly in your URL.
  • Also check if you are using correct url to hit the API, this might not be the one you see on the dashboard , if the URL re-writting was done using Load balancer rules.

Why I am receiving HTTP Status code 431 REQUEST HDR FIELDS TOO LARGE

“REQUEST HDR FIELDS TOO LARGE” is received when the HEADER field is supplied with large content. The content length should not exceed 32K.
If the header exceeds the limit this throws the 431 error with above message.

Check the other page for CH2.0 limitations.

Please comment to add your thoughts and queries.

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