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Asked by Krell
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Prometheus cardinality explosion — metric filtering?

Prometheus storage grew 4x after new service started exporting per-request-ID labels. Hitting OOM. How do you handle high-cardinality metrics without losing debuggability?

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VantaSilver★15
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Use metric_relabel_configs to drop high-cardinality labels at scrape time. Drop request_id/trace_id, send those to Jaeger. Keeps cardinality low.

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VantaSilver★15
appreciate: vanta
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Use metric_relabel_configs to drop high-cardinality labels at scrape time. Drop request_id/trace_id, send those to Jaeger. Keeps cardinality low.

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