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Date: Sun, 19 Aug 2012 07:01:39 +1100 (NCT)
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Subject: [jira] [Commented] (HBASE-5714) Add write permissions check before
 any hbck run that modifies hdfs.
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    [ https://issues.apache.org/jira/browse/HBASE-5714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13437399#comment-13437399 ] 

stack commented on HBASE-5714:
------------------------------

Patch looks good to me.  Nice one Lliang.  Jon or Jimmy want to take a look?
                
> Add write permissions check before any hbck run that modifies hdfs.
> -------------------------------------------------------------------
>
>                 Key: HBASE-5714
>                 URL: https://issues.apache.org/jira/browse/HBASE-5714
>             Project: HBase
>          Issue Type: Sub-task
>          Components: hbck
>    Affects Versions: 0.90.6, 0.92.2, 0.94.0, 0.96.0
>            Reporter: Jonathan Hsieh
>         Attachments: HBASE-5628.patch
>
>
> We encoutered a situation where hbck was run by an under-privileged user that was unable to write/modify/merge regions due to hdfs perms.  Unfortunately, this user was alerted of this  after several minutes of read-only operations.  hbck should fail early by having a write perm check and providing actionable advice to the hbase admin.
> Maybe something like: "Current user yy does not have write perms to <hbase home>. Please run hbck as hdfs user xxx"

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