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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12450) UserGroupInformation should not log at WARN level if no groups are found
Date Sun, 18 Oct 2015 12:53:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14962346#comment-14962346
] 

Hudson commented on HADOOP-12450:
---------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #561 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/561/])
HADOOP-12450. UserGroupInformation should not log at WARN level if no (stevel: rev e286512a7143427f2975ec92cdc4fad0a093a456)
* hadoop-common-project/hadoop-common/CHANGES.txt
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java


> UserGroupInformation should not log at WARN level if no groups are found
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-12450
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12450
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>            Priority: Minor
>             Fix For: 2.8.0
>
>         Attachments: HADOOP-12450-v1.patch, HADOOP-12450-v2.patch
>
>
> HBase tries to get the groups of a user on every request. That user may or may not exist
on the box running Hadoop/HBase.
> If that user doesn't exist currently Hadoop will log at the WARN level everytime. This
leads to gigs of log spam and serious GC issues.



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