Use BatchSpanProcessor
MODIFY
instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/OpenTelemetryAutoConfiguration.java
instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/OpenTelemetryAutoConfiguration.java
@@ -11,7 +11,7 @@ import io.opentelemetry.context.propagation.ContextPropagators;
import io.opentelemetry.sdk.OpenTelemetrySdk;
import io.opentelemetry.sdk.trace.SdkTracerProvider;
import io.opentelemetry.sdk.trace.SdkTracerProviderBuilder;
-import io.opentelemetry.sdk.trace.export.SimpleSpanProcessor;
+import io.opentelemetry.sdk.trace.export.BatchSpanProcessor;
import io.opentelemetry.sdk.trace.export.SpanExporter;
import io.opentelemetry.sdk.trace.samplers.Sampler;
import java.util.Collections;
@@ -45,8 +45,7 @@ public class OpenTelemetryAutoConfiguration {
SdkTracerProviderBuilder tracerProviderBuilder = SdkTracerProvider.builder();
spanExportersProvider.getIfAvailable(Collections::emptyList).stream()
- // todo SimpleSpanProcessor...is that really what we want here?
- .map(SimpleSpanProcessor::create)
+ .map(spanExporter -> BatchSpanProcessor.builder(spanExporter).build())
.forEach(tracerProviderBuilder::addSpanProcessor);
return tracerProviderBuilder

Use BatchSpanProcessor (#5275)