The statsd adapter enables Istio to deliver metric data to a StatsD monitoring backend.

This adapter supports the metric template.


Configuration format for the statsd adapter.

Field Type Description
address string

Address of the statsd server, e.g. localhost:8125

prefix string

Metric prefix, do not specify for no prefix

flushDuration google.protobuf.Duration

FlushDuration controls the maximum amount of time between sending metrics to the statsd collection server. Metrics are reported when either flushbytes is full or flushduration time has elapsed since the last report.

flushBytes int32

Maximum UDP packet size to send; if not specified defaults to 512 bytes. If the statsd server is running on the same (private) network 1432 bytes is recommended for better performance.

samplingRate float

Chance that any particular metric is sampled when incremented; can take the range [0, 1], defaults to 1 if unspecified.

metrics map<string, Params.MetricInfo>

Map of metric name -> info. If a metric’s name is not in the map then the metric will not be exported to statsd.


Describes how to represent this metric in statsd

Field Type Description
type Params.MetricInfo.Type
nameTemplate string

The template will be filled with values from the metric’s labels and the resulting string will be used as the statsd metric name. This allows easier creation of statsd metrics like action_name-response_code. The template strings must conform to go’s text/template syntax. For the example of action_name-response_code, we use the template: {{.apiMethod}}-{{.responseCode}}

If name_template is the empty string the Istio metric name will be used for statsd metric’s name.


The type of metric.

Name Description