Zhenhao Li created YARN-8057:
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Summary: Inadequate information for handling catch clauses
Key: YARN-8057
URL: https://issues.apache.org/jira/browse/YARN-8057
Project: Hadoop YARN
Issue Type: Improvement
Components: api, yarn
Affects Versions: 3.0.0
Reporter: Zhenhao Li
Their are some situations that different exception types are caught, but the
handling of those exceptions can not show the differences of those types. Here
are the code snippet we found which have this problem:
*org/apache/hadoop/yarn/client/api/impl/NMClientImpl.java*
[https://github.com/apache/hadoop/blob/c02d2ba50db8a355ea03081c3984b2ea0c375a3f/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/api/impl/NMClientImpl.java]
At Line *125* and Line *129.* We can see that two exception types are caught,
but the logging statements here can not show the exception type at all. It may
cause confusions to the person who are reading the log, the person can not know
what exception happened here.
Maybe adding stack trace information to these two logging statements is a
simple way to improve it.
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