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Posted to dev@dubbo.apache.org by GitBox <gi...@apache.org> on 2018/04/02 13:28:20 UTC

[GitHub] LinGoWei opened a new issue #1539: ������ mock ���������������������������������������������

LinGoWei opened a new issue #1539: 使用 mock 时，调用生产者异常堆栈无法打印
URL: https://github.com/apache/incubator-dubbo/issues/1539
 
 
   在使用dubbo mock 时发现调用第三方服务的异常堆栈没打印，导致排查问题难度提高，debug 发现在调用FailoverClusterInvoker.doInvoke() 方法后，抛出的异常堆栈信息将会在com/alibaba/dubbo/rpc/cluster/support/wrapper/MockClusterInvoker.java:80 抛出，并被catch，
   ![image](https://user-images.githubusercontent.com/6905006/38197721-3d7ba2f4-36bc-11e8-9bb1-3ca39e2eadc4.png)
   同时，在判断 logger.isWarnEnabled() 后将会使用 info 方式打印堆栈日志。
   但是，在排查jar 中的 dubbo-common/logback.xml 时发现，
       <logger name="com.alibaba.dubbo.common.utils.DubboLogger" additivity="false">
           <level value="warn"/>
           <appender-ref ref="dubbo"/>
       </logger>
   
   使用warn 级别打印日志，并且additivity = false 即为只打印一次，
   warn 级别并不打印 info日志，导致调用 dubbo 生产者时抛出的异常堆栈无法打印。

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