Haohui Mai created HADOOP-10015:
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Summary: UserGroupInformation prints out excessive ERROR warnings
Key: HADOOP-10015
URL: https://issues.apache.org/jira/browse/HADOOP-10015
Project: Hadoop Common
Issue Type: Bug
Reporter: Haohui Mai
Assignee: Haohui Mai
In UserGroupInformation::doAs(), it prints out a log at ERROR level whenever it
catches an exception.
However, in some cases IOExceptions are expected -- For example, the upp
(e.g., calling exists() in filesystem). As a result, these error logs are
benign but they are printed at the ERROR level, which confuses the operators.
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