m_exponential_histogram(metricName: string, [filter: bool]?) -> exponential_histogram

Select an OpenTelemetry exponential histogram metric for the align verb.

For other metrics, please use m(), m_tdigest(), or m_histogram() instead.

Domain

This is a scalar function (calculates a single output value for a single input row).

Categories

• Misc

Examples

align 5m, latency: histogram_combine(m_exponential_histogram("response_latency"))

An OpenTelemetry exponential histogram metric response_latency is selected for align using m_exponential_histogram. It is then aggregated into 5min time bins using histogram_combine.