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