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This page describes what to do in case of an Icinga alert. For more information you could search the govuk-puppet repo for the source of the alert
Last updated: 21 Apr 2021

Search reranker healthcheck not ok

The Search API uses machine learning to rank search results based on analytics data. If this alert fires, something has gone wrong with that process and we’re serving results as they were ordered by elasticsearch.

Unlike the other healthcheck failures, this does not mean that Search API is serving errors. Only that it is serving potentially worse results.

The machine learning model is hosted in Amazon SageMaker.

How do I investigate this?

Find out why the Search API can’t connect to SageMaker.

  • Look at the error message in the healthcheck response
  • Look at the Search API logs
  • Check the status of the SageMaker endpoint in the AWS console