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  1. OpenShift Bugs
  2. OCPBUGS-54940

Prometheus: Scraping: Bump cache iteration after error to avoid false duplicate detections.

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    • MON Sprint 269
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      Previously, if a scrape failed, Prometheus erroneously considered the samples from the very next scrape as duplicates and dropped them. This issue affected only the scrape immediately following a failure, while subsequent scrapes were processed correctly. With this release, the scrape following a failure is now correctly handled, ensuring that no valid samples are mistakenly dropped.
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      Previously, if a scrape failed, Prometheus erroneously considered the samples from the very next scrape as duplicates and dropped them. This issue affected only the scrape immediately following a failure, while subsequent scrapes were processed correctly. With this release, the scrape following a failure is now correctly handled, ensuring that no valid samples are mistakenly dropped.
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      This is a clone of issue OCPBUGS-53025. The following is the description of the original issue:
      —
      backporting https://github.com/prometheus/prometheus/pull/16174

      release note entry is to be added.

      Description of problem:

      Version-Release number of selected component (if applicable):

      How reproducible:

      Steps to Reproduce:

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      Actual results:

      Expected results:

      Additional info:

              rh-ee-amrini Ayoub Mrini
              openshift-crt-jira-prow OpenShift Prow Bot
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              Junqi Zhao Junqi Zhao
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