Use reasonable interval in sdktrace.WithBatchTimeout (#1621)

* Use reasonable interval in sdktrace.WithBatchTimeout

This patch resolves #1564.

* Add pull request ID to CHANGELOG.md

CHANGELOG.md

@@ -14,6 +14,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - AttributePerEventCountLimit and AttributePerLinkCountLimit for SpanLimits. (#1535)
 - Added `Keys()` method to `propagation.TextMapCarrier` and `propagation.HeaderCarrier` to adapt `http.Header` to this interface. (#1544)
 - Added `code` attributes to `go.opentelemetry.io/otel/semconv` package. (#1558)
+- Changed all examples to use `WithBatchTimeout(5 * time.Second)` rather than `WithBatchTimeout(5)` (#1621)
 
 ### Changed
 

exporters/otlp/internal/otlptest/otlptest.go

@@ -44,7 +44,7 @@ func RunEndToEndTest(ctx context.Context, t *testing.T, exp *otlp.Exporter, mcTr
 		sdktrace.WithBatcher(
 			exp,
 			// add following two options to ensure flush
-			sdktrace.WithBatchTimeout(5),
+			sdktrace.WithBatchTimeout(5*time.Second),
 			sdktrace.WithMaxExportBatchSize(10),
 		),
 	}

exporters/otlp/otlpgrpc/example_test.go

@@ -53,7 +53,7 @@ func Example_insecure() {
 		sdktrace.WithBatcher(
 			exp,
 			// add following two options to ensure flush
-			sdktrace.WithBatchTimeout(5),
+			sdktrace.WithBatchTimeout(5*time.Second),
 			sdktrace.WithMaxExportBatchSize(10),
 		),
 	)
@@ -106,7 +106,7 @@ func Example_withTLS() {
 		sdktrace.WithBatcher(
 			exp,
 			// add following two options to ensure flush
-			sdktrace.WithBatchTimeout(5),
+			sdktrace.WithBatchTimeout(5*time.Second),
 			sdktrace.WithMaxExportBatchSize(10),
 		),
 	)
@@ -167,7 +167,7 @@ func Example_withDifferentSignalCollectors() {
 		sdktrace.WithBatcher(
 			exp,
 			// add following two options to ensure flush
-			sdktrace.WithBatchTimeout(5),
+			sdktrace.WithBatchTimeout(5*time.Second),
 			sdktrace.WithMaxExportBatchSize(10),
 		),
 	)

exporters/otlp/otlpgrpc/otlp_integration_test.go

@@ -337,7 +337,7 @@ func TestNewExporter_withMultipleAttributeTypes(t *testing.T) {
 		sdktrace.WithBatcher(
 			exp,
 			// add following two options to ensure flush
-			sdktrace.WithBatchTimeout(5),
+			sdktrace.WithBatchTimeout(5*time.Second),
 			sdktrace.WithMaxExportBatchSize(10),
 		),
 	)