yuecong commented on issue #26060: [SPARK-29400][CORE] Improve PrometheusResource to use labels URL: https://github.com/apache/spark/pull/26060#issuecomment-539818338 > * `storage.tsdb.retention.time`: https://prometheus.io/docs/prometheus/latest/storage/#operational-aspects Thanks for the pointer. We are using a retention period for sure. But this will not help to expire some metrics as far as it goes into the Prometheus server. Also it is one challenge to remove metrics from the prometheus registry from client-side as well.
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