@Override
    protected void doInAfterTrace(SpanEventRecorder recorder, Object target, Object[] args, Object result, Throwable throwable) {
        recorder.recordServiceType(HystrixPluginConstants.HYSTRIX_INTERNAL_SERVICE_TYPE);
        recorder.recordApi(methodDescriptor);
        recorder.recordAttribute(HystrixPluginConstants.HYSTRIX_COMMAND_EXECUTION_ANNOTATION_KEY, getExecutionType());
        recorder.recordException(throwable);
    }
for hystrix-core above 1.4

Created by jack on 4/21/16.
agent-module/plugins/hystrix/src/main/java/com/navercorp/pinpoint/plugin/hystrix/interceptor/HystrixObservableCallInterceptor.java