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From "stack (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4680) FSUtils.isInSafeMode() requires superuser privileges when HDFS permissions checking enabled
Date Thu, 27 Oct 2011 23:22:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13137721#comment-13137721
] 

stack commented on HBASE-4680:
------------------------------

+1
                
> FSUtils.isInSafeMode() requires superuser privileges when HDFS permissions checking enabled
> -------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4680
>                 URL: https://issues.apache.org/jira/browse/HBASE-4680
>             Project: HBase
>          Issue Type: Bug
>          Components: util
>    Affects Versions: 0.92.0
>            Reporter: Gary Helmling
>            Priority: Critical
>             Fix For: 0.92.0
>
>         Attachments: HBASE-4680.patch
>
>
> The HDFS safe mode check workaround introduced by HBASE-4510 performs a {{FileSystem.setPermission()}}
operation on the root directory ("/") when attempting to trigger a {{SafeModeException}}.
 As a result, it requires superuser privileges when running with DFS permission checking enabled.
 Changing the operations to act on the HBase root directory should be safe, since the master
process must have write access to it.

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