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From "Gary Helmling (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3194) HBase should run on both secure and vanilla versions of Hadoop 0.20
Date Tue, 09 Nov 2010 05:31:22 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12929965#action_12929965

Gary Helmling commented on HBASE-3194:

Thanks for the review, Stack.

Yeah, what Todd says.  We'll need something like this to work on either CDH3b3 or Y! secure
Hadoop 0.20.  This issue came up from two different people simultaneously on IRC last week,
so we should definitely get something into 0.90.

> HBase should run on both secure and vanilla versions of Hadoop 0.20
> -------------------------------------------------------------------
>                 Key: HBASE-3194
>                 URL: https://issues.apache.org/jira/browse/HBASE-3194
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Gary Helmling
> There have been a couple cases recently of folks trying to run HBase trunk (or 0.89 DRs)
on CDH3b3 or secure Hadoop.    While HBase security is in the works, it currently only runs
on secure Hadoop versions.  Meanwhile HBase trunk won't compile on secure Hadoop due to backward
incompatible changes in org.apache.hadoop.security.UserGroupInformation.
> This issue is to work out the minimal set of changes necessary to allow HBase to build
and run on both secure and non-secure versions of Hadoop.  Though, with secure Hadoop, I don't
even think it's important to target running with HDFS security enabled (and krb authentication).
 Just allow HBase to build and run in both versions.
> I think mainly this amounts to abstracting usage of UserGroupInformation and UnixUserGroupInformation.

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