[Bug]: PeriodicReader with with_interval not respected

[joseph-henry]

Hello.

I'm trying to change the interval of metrics collection but cannot seem to get the desired effect. I'm doing:

fn init_metrics() -> SdkMeterProvider {
    let exporter = MetricExporter::builder()
        .with_http()
        .with_protocol(Protocol::HttpBinary) //can be changed to `Protocol::HttpJson` to export in JSON format
        .build()
        .expect("Failed to create metric exporter");

    let reader = PeriodicReader::builder(exporter)
        .with_interval(Duration::from_secs(5))
        .build();

    SdkMeterProvider::builder()
        .with_reader(reader)
        .with_resource(get_resource())
        .build()
}

But it's still exporting at 60 seconds.

I can see the following log entry so it appears to be correctly set:

OpenTelemetry.Metrics.PeriodicReader opentelemetry_sdk:  name="PeriodReaderThreadStarted" interval_in_millisecs=5000

Also, I'd like to be able to configure not only the collection frequency but also the export frequency separately. For instance I may want to collect data once a second but only export every 60 seconds, is that possible?

Thanks.

OpenTelemetry API Version (i.e version of opentelemetry crate)

0.28.0

OpenTelemetry SDK Version (i.e version of opentelemetry_sdk crate)

0.28.0

What Exporter(s) are you seeing the problem on?

MetricExporter

Relevant log output

OpenTelemetry.Metrics.PeriodicReader opentelemetry_sdk:  name="PeriodReaderThreadStarted" interval_in_millisecs=5000

[cijothomas]

but cannot seem to get the desired effect

Can you share details on how you are testing and validating? The shared logs just has a the initial log only - if you can share subsequent logs, that should tell how frequently export is triggered.

[cijothomas]

Also, I'd like to be able to configure not only the collection frequency but also the export frequency separately. For instance I may want to collect data once a second but only export every 60 seconds, is that possible?

Not possible today. This is an open issue in the specification also.

[otiv-emiel-vanseveren]

Also having the same issue. Setting a different interval (e.g. 15s), still just pulls every 60s

[cijothomas]

@otiv-emiel-vanseveren Can you share more details ? I was not able to reproduce this....