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https://issues.apache.org/jira/browse/HCATALOG-10?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13169898#comment-13169898
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Ashutosh Chauhan commented on HCATALOG-10:
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But, UserGroupInformation is in same package in both 0.20.x 
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20/src/core/org/apache/hadoop/security/UserGroupInformation.java
 and 0.20.2xx 
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20-security-205/src/core/org/apache/hadoop/security/UserGroupInformation.java
 So, I am not sure if this if will work. Safer is to check for 
UnixUserGroupInformation which has been deleted in 0.20.2xx but still exists in 
0.20.x.
                
> Shouldn't assume the secure hadoop installation
> -----------------------------------------------
>
>                 Key: HCATALOG-10
>                 URL: https://issues.apache.org/jira/browse/HCATALOG-10
>             Project: HCatalog
>          Issue Type: Bug
>    Affects Versions: 0.1
>            Reporter: Devaraj Das
>            Assignee: Julien Le Dem
>         Attachments: HCAT-10.patch
>
>
> HCatalog currently only builds against Hadoop 20S. It should successfully 
> build against hadoop-0.20 as well. 

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