The servergraph component merges metrics from different dimensions

[hongweipeng]

Component(s)

connector/servicegraph

What happened?

Description

In the buildMetricKey function:

func (p *serviceGraphConnector) buildMetricKey(clientName, serverName, connectionType, failed string, edgeDimensions map[string]string) string {
	var metricKey strings.Builder
	metricKey.WriteString(clientName + metricKeySeparator + serverName + metricKeySeparator + connectionType + metricKeySeparator + failed)

	for _, dimName := range p.config.Dimensions {
		dim, ok := edgeDimensions[dimName]
		if !ok {
			continue
		}
		metricKey.WriteString(metricKeySeparator + dim)
	}

	return metricKey.String()
}

The edgeDimensions dimensions all have the client_ or server_ prefix; the dimensions in the function do not take the prefix into consideration. Make this for loop ineffective, Indicators from different dimensions have been merged.

Collector version

v0.108.0

Environment information

Environment

OS: (e.g., "Ubuntu 20.04")
Compiler(if manually compiled): (e.g., "go 14.2")

OpenTelemetry Collector configuration

No response

Log output

No response

Additional context

No response

[github-actions]

Pinging code owners:

• connector/servicegraph: @jpkrohling @mapno @JaredTan95

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