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Clarify use cases in InitialScrapeOffset comment

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Signed-off-by: avilevy <avilevy@google.com>
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avilevy 2026-03-07 02:29:23 +00:00
parent 0e478d1f3f
commit 6828a6bdda
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1 changed files with 7 additions and 3 deletions
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10
scrape/manager.go
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@ -143,9 +143,13 @@ type Options struct {
// tuning the initial startup delay without overriding the underlying target
// jitter, preserving proper load balancing across the scraper pools.
//
// NOTE: This option is not used by the standard Prometheus server. It was
// created for use in agent mode or in OTel's prometheusreceiver when
// used in serverless job scenarios.
// Setting this offset (e.g., to 10s) is particularly useful in Prometheus
// agent mode and OTel's prometheusreceiver when used in serverless job
// scenarios. It helps avoid readiness races where targets might not be fully
// initialized immediately upon startup. It also prevents capturing
// intermediate state (such as applications crashing shortly after booting),
// and ensures backend rate limits don't drop valuable shutdown scrapes
// because of an early startup scrape.
InitialScrapeOffset time.Duration
}