InfluxDB exporter: histogram records counts are not monotonic

[Kernell]

Component

OpenTelemetry.Exporter.InfluxDB

Package Version

Package Name	Version
OpenTelemetry.Exporter.InfluxDB	1.0.0-alpha.3
OpenTelemetry.Extensions.Hosting	1.9.0
OpenTelemetry.Instrumentation.AspNetCore	1.9.0

Runtime Version

net6.0

Description

I'm trying to display data using InfluxDB UI like in this example that was generated using OpenTelemetry.Instrumentation.AspNetCore but I get an error "histogram records counts are not monotonic"

Other data in my database (imported using Scapers from Prometheus) displays correctly.

Steps to Reproduce

A simple application setup is sufficient:

IConfigurationSection section = configuration.GetSection("Metrics");

services.AddOpenTelemetry()
    .WithMetrics(builder => builder
        .AddAspNetCoreInstrumentation()
        .AddInfluxDBMetricsExporter(options =>
        {
            options.Org = section["Org"];
            options.Bucket = section["Bucket"];
            options.Token = section["Token"];
            options.Endpoint = new Uri(section["Endpoint"]);
            options.MetricsSchema = MetricsSchema.TelegrafPrometheusV2;
            options.MetricExportIntervalMilliseconds = 15000;
        }));

And the query that I send to InfluxDB:

import "experimental/prometheus"

from(bucket: "example-bucket")
  |> range(start: v.timeRangeStart, stop: v.timeRangeStop)
  |> filter(fn: (r) => r["_measurement"] == "prometheus")
  |> filter(fn: (r) => r["_field"] == "http.server.request.duration_bucket")
  |> aggregateWindow(every: 1m, fn: mean, createEmpty: false)
  |> prometheus.histogramQuantile(quantile: 0.90)

Expected Result

I think the problem is in the incorrect saving of data. For example, currently the metrics http.server.request.duration_bucket, http.server.request.duration_sum and http.server.request.duration_count are separate fields, while Scapers in InfluxDB imports sum and count as tags for http_request_duration_seconds

Actual Result

histogram records counts are not monotonic

Additional Context

No response

[Kielek]

@Havret, could you please check?

[Havret]

@Kielek, I will take a look over the weekend.