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From "Brandon Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-10015) UserGroupInformation prints out excessive ERROR warnings
Date Mon, 07 Oct 2013 23:16:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-10015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brandon Li updated HADOOP-10015:
--------------------------------

    Description: 
In UserGroupInformation::doAs(), it prints out a log at ERROR level whenever it catches an
exception.

However, it prints benign warnings in the following paradigms:

{noformat}

{noformat}

in some cases IOExceptions are expected by the upper level users (e.g., FileSystem#exists()
in filesystem). As a result, these error logs are benign but they are printed at the ERROR
level, which confuses the operators.

  was:
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.


> 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
>         Attachments: HADOOP-10015.000.patch, HADOOP-10015.001.patch
>
>
> In UserGroupInformation::doAs(), it prints out a log at ERROR level whenever it catches
an exception.
> However, it prints benign warnings in the following paradigms:
> {noformat}
> {noformat}
> in some cases IOExceptions are expected by the upper level users (e.g., FileSystem#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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