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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2016/02/25 13:21:18 UTC

[jira] [Created] (HADOOP-12840) UGI to log@ debug stack traces when failing to find groups for a user

Steve Loughran created HADOOP-12840:
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             Summary: UGI to log@ debug stack traces when failing to find groups for a user
                 Key: HADOOP-12840
                 URL: https://issues.apache.org/jira/browse/HADOOP-12840
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: security
    Affects Versions: 2.8.0
            Reporter: Steve Loughran
            Priority: Minor


If {{UGI.getGroupNames()}} catches an IOE raised by {{groups.getGroups(getShortUserName())}} then it simply logs @ debug "No groups available for user". The text from the caught exception and stack trace are not printed.

One IOException raised is the explicit "user not in groups" exception, but there could be other causes too —if that happens the entire problem will be missed.



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