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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5498) Secure Bulk Load
Date Thu, 27 Sep 2012 20:23:08 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13465042#comment-13465042
] 

stack commented on HBASE-5498:
------------------------------

Can we have review of Francis's last patch set?  [~ram_krish], or [~lakshman], or [~andrew.purtell@gmail.com]
 Thanks.
                
> Secure Bulk Load
> ----------------
>
>                 Key: HBASE-5498
>                 URL: https://issues.apache.org/jira/browse/HBASE-5498
>             Project: HBase
>          Issue Type: Improvement
>          Components: security
>            Reporter: Francis Liu
>            Assignee: Francis Liu
>             Fix For: 0.94.3, 0.96.0
>
>         Attachments: HBASE-5498_94.patch, HBASE-5498_94.patch, HBASE-5498_draft_94.patch,
HBASE-5498_draft.patch, HBASE-5498_trunk.patch
>
>
> Design doc: https://cwiki.apache.org/confluence/display/HCATALOG/HBase+Secure+Bulk+Load
> Short summary:
> Security as it stands does not cover the bulkLoadHFiles() feature. Users calling this
method will bypass ACLs. Also loading is made more cumbersome in a secure setting because
of hdfs privileges. bulkLoadHFiles() moves the data from user's directory to the hbase directory,
which would require certain write access privileges set.
> Our solution is to create a coprocessor which makes use of AuthManager to verify if a
user has write access to the table. If so, launches a MR job as the hbase user to do the importing
(ie rewrite from text to hfiles). One tricky part this job will have to do is impersonate
the calling user when reading the input files. We can do this by expecting the user to pass
an hdfs delegation token as part of the secureBulkLoad() coprocessor call and extend an inputformat
to make use of that token. The output is written to a temporary directory accessible only
by hbase and then bulkloadHFiles() is called.

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