tracing: enable retrying otlp requests when using http

tracing/tracing.go

@@ -335,6 +335,13 @@ func newOLTPExporter(ctx context.Context, cfg *TracerConfig) (sdktrace.SpanExpor
 			opts = append(opts, otlptracehttp.WithEndpointURL(cfg.EndpointURL))
 		}
 
+		opts = append(opts, otlptracehttp.WithRetry(otlptracehttp.RetryConfig{
+			Enabled:         true,
+			InitialInterval: 3 * time.Second,
+			MaxInterval:     60 * time.Second,
+			MaxElapsedTime:  5 * time.Minute,
+		}))
+
 		client = otlptracehttp.NewClient(opts...)
 	default:
 		return nil, errInvalidOTLPProtocol