Define a metric for capturing pending signals

[thompson-tomo]

Area(s)

area:process

What's missing?

A metric defining how many signals are pending for a process on Linux as needed by host receiver https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/receiver/hostmetricsreceiver/internal/scraper/processscraper/documentation.md

Describe the solution you'd like

A new metric defined which follows semconv in particularly naming. Suggestion would be process.signal.pending but that is just an initial thought.

Tip

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