Fix bug with loki.process metrics stage during config reload #1292
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thampiotr
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Jul 15, 2024
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PR Description
This bugfix is ported from a PR which was already merged to Grafana Agent. The behaviour in Alloy is different from Agent Static mode. Static mode would always log an error during config reload. Alloy doesn't log any errors. Also, reloading the config if it hasn't changed works ok and the metrics stage keeps working fine. However, if the metrics stage is changed to remove certain metrics, those metrics will still be present even after the next config reload. Their values will remain frozen in time. If they are added to the config later, then they won't resume working - they'll remain frozen.
Which issue(s) this PR fixes
Related to an issue in the Agent repo.
PR Checklist