Histogram Buckets Are Not Cumulative

[yaskinny]

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Problem

Histogram buckets are not cumulative. This is same as this bug i reported in promtail.

Configuration

this is not whole configuration and some parts are reducted but any part related to metrics exist.

transforms:
  logsToMetrics:
    type: log_to_metric
    inputs:
      - this
      - that
    metrics:
      - type: histogram
        field: response_time
        name: edges_requests_response_time
        increment_by_value: true
        tags:
          method: "{{ method }}"
          client_version: "{{ client_version }}"
          status: "{{ status }}"
          cache_status: "{{ cache_status }}"
          namespace: "{{ namespace }}"
          service_name: "{{ service_name }}"
          domain: "{{ domain }}"
          health: "{{ is_health }}"
          host: "{{ host }}"
  aggregateMetrics:
    type: aggregate
    inputs:
      - logsToMetrics
      - internalMetrics
    interval_ms: 5000

sinks:
  exposeMetrics:
    type: prometheus_exporter
    address: 0.0.0.0:9597
    buffer:
      type: memory
      max_events: 200000
    inputs:
      - aggregateMetrics
    buckets:
      - 0.005
      - 0.010
      - 0.015
      - 0.020
      - 0.030
      - 0.050
      - 0.075
      - 0.100
      - 0.150
      - 0.200
      - 0.300
      - 0.500
      - 0.750
      - 1.000
      - 1.500
      - 2.500
      - 4.000
      - 8.000
    flush_period_secs: 3600

Version

vector 0.44.0

Debug Output

Example Data

promql output:

my_metric_bucket{le="0.005",<other lables reducted>} 0
my_metric_bucket{le="0.01",<other lables reducted>} 1
my_metric_bucket{le="0.015",<other lables reducted>} 12
my_metric_bucket{le="0.02",<other lables reducted>} 17
my_metric_bucket{le="0.03",<other lables reducted>} 25
my_metric_bucket{le="0.05",<other lables reducted>} 39
my_metric_bucket{le="0.075",<other lables reducted>} 58
my_metric_bucket{le="0.1",<other lables reducted>} 70
my_metric_bucket{le="0.15",<other lables reducted>} 108
my_metric_bucket{le="0.2",<other lables reducted>} 128
my_metric_bucket{le="0.3",<other lables reducted>} 132
my_metric_bucket{le="0.5",<other lables reducted>} 144
my_metric_bucket{le="0.75",<other lables reducted>} 171
my_metric_bucket{le="1",<other lables reducted>} 176
my_metric_bucket{le="1.5",<other lables reducted>} 180
my_metric_bucket{le="2.5",<other lables reducted>} 180
my_metric_bucket{le="4",<other lables reducted>} 180
my_metric_bucket{le="8",<other lables reducted>} 180
my_metric_bucket{le="+Inf",<other lables reducted>} 182

here bucket 0.005 shouldn't be 0

Additional Context

No response

References

No response