lib/ddtrace/tracer.rb in ddtrace-0.52.0 vs lib/ddtrace/tracer.rb in ddtrace-0.53.0

@@ -198,10 +198,10 @@
 
       span = Span.new(self, name, span_options)
       if parent.nil?
         # root span
         @sampler.sample!(span)
-        span.set_tag('system.pid', Process.pid)
+        span.set_tag(Datadog::Ext::Runtime::TAG_PID, Process.pid)
         span.set_tag(Datadog::Ext::Runtime::TAG_ID, Datadog::Core::Environment::Identity.id)
 
         if ctx && ctx.trace_id
           span.trace_id = ctx.trace_id
           span.parent_id = ctx.span_id unless ctx.span_id.nil?