Does StableMetric intentionally repeatedly sends old data?

[JustasL]

Does StableMetric intentionally repeatedly sends old data?

I've have very simple setup, and calling counter.add(value: 101, attribute: nil) will send 101 value on repeat as long as the app is alive. If I track more events, the old events will be sent with new ones

I found this by inspecting network request and later placing break point here

Here's my setup:

    let otlpHttpMetricExporter = StableOtlpHTTPMetricExporter(
        endpoint: Constants.metricsAPIURL
    )

    OpenTelemetry.registerStableMeterProvider(
        meterProvider: StableMeterProviderBuilder()
            .setResource(resource: Resource(attributes: [
                "service.name": .string("\(clientName)/ios")
            ]))
            .registerView(
                selector: InstrumentSelector.builder()
                    .setInstrument(name: counterInstrumentName)
                    .setInstrument(type: .counter)
                    .build(),
                view: StableView.builder().build()
            )
            .registerMetricReader(
                reader: StablePeriodicMetricReaderBuilder(exporter: otlpHttpMetricExporter)
                    .setInterval(timeInterval: 5)
                    .build()
            )
            .build()
    )

    meter = OpenTelemetry.instance.stableMeterProvider?
        .meterBuilder(name: "Meter")
        .build()

    var counter = meter?.counterBuilder(name: counterInstrumentName).ofDoubles().build()
        
    counter.add(value: 101, attribute: someAttributes)

I am using 1.12.1 version

[bryce-b]

This is an attribute of the AggregationTemporality, which is an option on the exporter initializer. It sounds like you are expecting a delta temporality, and it defaults to cumulative.