Merge branch 'master' into asf-site
diff --git a/_posts/cn/2019-01-23-customized-tracing-with-servicecomb.md b/_posts/cn/2019-01-23-customized-tracing-with-servicecomb.md
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@@ -65,9 +65,9 @@
使用限制：自定义跟踪仅支持注解请求线程中的方法调用，且带有`@Span`的类必须是spring管理的bean。
## 快速演示
下面使用java-chassis/samples/bmi 程序演示，如何使用自定义追踪功能定位应用程序中的问题？
-1. 正常运行bmi程序，结果如下
- 
- 
+1. 正常运行bmi程序，结果如下
+ 
+ 
2. 在bmi程序的calculator服务的calculate方法处，增加一块进程休眠代码（模拟实际工作中调用当前线程处理其他业务的情景），如下
```java
public double calculate(double height, double weight) {
@@ -87,13 +87,13 @@
}
```
-3. 运行bmi程序，出现如下异常结果。查看zipkin追踪情况和程序报错信息，可以初步确定问题由 bmi/calculator 服务超时未响应导致
- 
- 
- 
+3. 运行bmi程序，出现如下异常结果。查看zipkin追踪情况和程序报错信息，可以初步确定问题由 bmi/calculator 服务超时未响应导致
+ 
+ 
+ 
4. 使用自定义追踪功能，定位问题具体位置
在calculator服务中配置自定义追踪功能，添加注解 `@Span`在calculator服务的方法上 。运行bmi程序，zipkin追踪耗时情况如下。根据span占用的时间戳，可以确定延时问题出现在calculate方法处，点击span，可查看call.path 获取calculate方法的具体位置。
- 
- 
+ 
+ 
## 总结
从上面的示例可以看出，通过配置ServiceComb的自定义追踪功能，可以实现对服务中调用方法、接口的追踪，实现更细力度化的追踪。这对于我们监控服务内部调用、定位服务中的延时问题等非常有帮助。
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