docs/examples/http: Remove duplicated call to set_tracer_provider (open-telemetry#560)

mauriciovasquezbernal · web-flow · commit 2e5c1cbe4eee · 2020-04-07T12:03:17.000-07:00
set_tracer_provider() was called twice using different TracerProvider objects.
It caused that the "parent" span wasn't exported because it was created with a
tracer from the first call to set_tracer_provider that didn't have a configured
span processor.
diff --git a/docs/examples/http/server.py b/docs/examples/http/server.py
@@ -35,7 +35,6 @@
 
 exporter = ConsoleSpanExporter()
 span_processor = BatchExportSpanProcessor(exporter)
-trace.set_tracer_provider(TracerProvider())
 trace.get_tracer_provider().add_span_processor(span_processor)
 
 # Integrations are the glue that binds the OpenTelemetry API and the
