我按照 Google Cloud 的 Java 和 OpenTelemetry 站点 ( https://cloud.google.com/trace/docs/setup/java-ot ) 上的步骤,在本地制作了一个简单的 hello world Java 应用程序,并试图让我的踪迹显示出来使用他们的跟踪导出器在 Google Cloud Trace 上运行。
所有设置代码都是一样的,程序编译运行成功。但是,我在 Trace 仪表板上看不到任何内容。我知道这不是 IAM 或我的服务帐户密钥的问题,因为我运行了 Python 示例,它很好地显示在 Cloud Trace 仪表板中。
任何人都对为什么 Java 版本可能会默默失败有任何指导吗?
谢谢
package hello;
import org.joda.time.LocalTime;
import io.opentelemetry.api.GlobalOpenTelemetry;
import io.opentelemetry.api.trace.Span;
import io.opentelemetry.api.trace.Tracer;
import io.opentelemetry.context.Scope;
import io.opentelemetry.api.OpenTelemetry;
import io.opentelemetry.api.common.AttributeKey;
import io.opentelemetry.api.common.Attributes;
import io.opentelemetry.api.trace.Span;
import io.opentelemetry.api.trace.StatusCode;
import io.opentelemetry.api.trace.Tracer;
import io.opentelemetry.context.Scope;
import io.opentelemetry.sdk.OpenTelemetrySdk;
import io.opentelemetry.sdk.trace.SdkTracerProvider;
import io.opentelemetry.sdk.trace.export.BatchSpanProcessor;
import io.opentelemetry.exporter.logging.LoggingSpanExporter;
import io.opentelemetry.sdk.trace.export.SimpleSpanProcessor;
import io.opentelemetry.context.Context;
import io.opentelemetry.context.propagation.ContextPropagators;
import io.opentelemetry.api.metrics.LongCounter;
import io.opentelemetry.api.metrics.Meter;
import io.opentelemetry.sdk.metrics.SdkMeterProvider;
import io.opentelemetry.sdk.metrics.export.IntervalMetricReader;
import java.io.IOException;
import java.util.Random;
import com.google.cloud.opentelemetry.trace.TraceConfiguration;
import com.google.cloud.opentelemetry.trace.TraceExporter;
import java.util.Collections;
import static java.util.Collections.singleton;
import java.time.Duration;
public class HelloWorld {
private static final Random random = new Random();
private static OpenTelemetry setupTraceExporter() {
try {
TraceExporter traceExporter = TraceExporter.createWithConfiguration(
TraceConfiguration.builder().setProjectId("my-test-id").build());
// Register the TraceExporter with OpenTelemetry
return OpenTelemetrySdk.builder()
.setTracerProvider(
SdkTracerProvider.builder()
.addSpanProcessor(BatchSpanProcessor.builder(traceExporter).build())
.build())
.buildAndRegisterGlobal();
} catch (IOException e) {
System.out.println("Uncaught Exception");
System.out.println(e);
return null;
}
}
public static void main(String[] args) {
System.out.println("Starting the example application");
/* SET UP */
OpenTelemetry otel = setupTraceExporter();
/* Creating tracer */
Tracer tracer =
otel.getTracer("java foo");
Span span = tracer.spanBuilder("my span").startSpan();
// put the span into the current Context
try (Scope scope = span.makeCurrent()) {
System.out.println("Hello");
Thread.sleep(4000);
} catch (Throwable t) {
span.setStatus(StatusCode.ERROR, "error");
System.out.println(t);
} finally {
span.end();
}
System.out.println("Closing");
//otel.getSdkTracerProvider().shutdown();
}
}