使用 Apache Skywalking 做分布式跟踪

package org.apache.skywalking.demo.interfaces;

public interface HelloService {
	String sayHello(String name);
}

package org.apache.skywalking.demo.provider;

@Service(version = "${demo.service.version}",
	application = "${dubbo.application.id}",
	protocol = "${dubbo.protocol.id}",
	registry = "${dubbo.registry.id}", timeout = 60000)
public class HelloServiceImpl implements HelloService {

	public String sayHello(String name) {
		LockSupport.parkNanos(TimeUnit.SECONDS.toNanos(1));
		return "Hello, " + name;
	}

}

package org.apache.skywalking.demo.consumer;

@RestController
public class ConsumerController {

	private static int COUNT = 0;

	@Reference(version = "${demo.service.version}",
		application = "${dubbo.application.id}",
		url = "dubbo://localhost:20880", timeout = 60000)
	private HelloService helloService;

	@GetMapping("/sayHello/{name}")
	public String sayHello(@PathVariable(name = "name") String name) {
		if ((COUNT++) % 3 == 0){
			throw new RuntimeException();
		}
		LockSupport.parkNanos(TimeUnit.SECONDS.toNanos(2));
		return helloService.sayHello(name);
	}
}

./mvnw clean package

java -jar -javaagent:$AGENT_PATH/skywalking-agent.jar -Dskywalking.agent.application_code=dubbo-provider -Dskywalking.collector.servers=localhost:10800 dubbo-provider/target/dubbo-provider.jar

java -jar -javaagent:$AGENT_PATH/skywalking-agent.jar -Dskywalking.agent.application_code=dubbo-consumer -Dskywalking.collector.servers=localhost:10800 dubbo-consumer/target/dubbo-consumer.jar 

curl http://localhost:8080/sayHello/test