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https://issues.apache.org/jira/browse/HBASE-5498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13466993#comment-13466993
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Gary Helmling commented on HBASE-5498:
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Re: SecureBulkLoadEndpoint and CoprocessorService
Yes the plan is to remove CoprocessorProtocol support (the old Writable
implementations) for 0.96 -- see HBASE-6895. If this patch is otherwise ready
(haven't reviewed it myself), I'd suggest opening a new issue to deal with
converting SecureBulkLoadEndpoint to a PB/CoprocessorService implementation,
and link that to HBASE-6895 as a blocker for 0.96. That way the 0.94 and 0.96
versions of this patch don't diverge and the PB conversion only needs to be
addressed for 0.96.
> 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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