Configurable measuring interval by counter (instrument)

[dzediar]

Discussed in #2189

^{Originally posted by dzediar December 3, 2021}
Hello,

In my application, I would like measurement intervals specific to each instrument.

In the source of MeterProviderSdk, would it be possible toadd an event / action in MeterProviderSdk.CollectObservableInstruments(), so we could disable some instrument measures if needed ?

Thanks.

[jack-berg]

Possible duplicate of #1432, which was also discussed in #2120.

[jmacd]

This is one of the reasons we require the API for registering callbacks to maintain a mapping to the asynchronous instruments that use it. In #2317 I'm proposing we admit multi-instrument callbacks, so you might have one callback to report several instruments. If you were to configure multi export intervals for those, the callbacks as often as necessary for every one of the associated metrics. I think this is an appropriate outcome.