group by trace for different spans
group by trace for different spans

varnish/zipnish,varnish/zipnish,varnish/varnish-microservice-monitor,varnish/varnish-microservice-monitor,varnish/zipnish,varnish/zipnish,varnish/zipnish,varnish/varnish-microservice-monitor,varnish/varnish-microservice-monitor,varnish/varnish-microservice-monitor