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https://issues.apache.org/jira/browse/HADOOP-12450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Elliott Clark updated HADOOP-12450:
-----------------------------------
Attachment: HADOOP-12450-v1.patch
> 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: Bug
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HADOOP-12450-v1.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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