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CONTAP-109266: Metrics returning 404 Not Found when timeout happens with busy nodes

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Perf
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Issue

  • When attempting to access metrics via the REST API, a scenario may arise where:
     1. The response incorrectly indicates a status code of 404 "Not Found".
     2. The accompanying error message states "UUID not found."

  • The response often happens during periods of high CPU activity, causing communication delays.
  • Timeouts result from prolonged counter value fetching due to these delays.

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