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clarify prometheus annotation #316

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Nov 26, 2023
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clarify prometheus annotation #316

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3 changes: 3 additions & 0 deletions docs/modelserving/observability/prometheus_metrics.md
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Expand Up @@ -35,6 +35,9 @@ The default values for `serving.kserve.io/enable-prometheus-scraping` can be set

There is not currently a unified set of metrics exported by the model servers. Each model server may implement its own set of metrics to export.

!!! note
This annotation defines the prometheus port and path, but it does not trigger the prometheus to scrape. Users must configure prometheus to scrape data from inference service's pod according to the prometheus settings.

## Metrics for lgbserver, paddleserver, pmmlserver, sklearnserver, xgbserver, custom transformer/predictor

Prometheus latency histograms are emitted for each of the steps (pre/postprocessing, explain, predict).
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