New instantiates a KVSubscriber.

NewNoopSubscriber returns a new no-op KVSubscriber.

NewSpanConfigDecoder instantiates a SpanConfigDecoder.

TestingDecoderFn exports the decoding routine for testing purposes.

KVSubscriber is used to subscribe to global span configuration changes.

Metrics are the Metrics associated with an instance of the KVSubscriber.

SpanConfigDecoder decodes rows from system.span_configurations.