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https://issues.apache.org/jira/browse/HIVE-2764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13235106#comment-13235106
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Phabricator commented on HIVE-2764:
-----------------------------------

ashutoshc has requested changes to the revision "HIVE-2764 [jira] Obtain 
delegation tokens for MR jobs in secure hbase setup".

  Added comments. Also, patch needs to be rebased.

INLINE COMMENTS
  
hbase-handler/src/java/org/apache/hadoop/hive/hbase/HiveHBaseTableOutputFormat.java:104
 I understand from this patch that checkOutputSpecs() is never called. But, see 
an existing impl here. So, then before this patch, this code was never getting 
invoked ?
  
hbase-handler/src/java/org/apache/hadoop/hive/hbase/HiveHFileOutputFormat.java:214
 I don't think you want to override this function and leave a no-op here. I 
think you still want super-class checkOS to be called. Isn't it ?
  ql/src/java/org/apache/hadoop/hive/ql/io/HiveOutputFormatImpl.java:53 This is 
not supposed to get called, right ? In that case this should throw exception, 
instead of creating object and returning it.
  ql/src/java/org/apache/hadoop/hive/ql/io/HiveOutputFormatImpl.java:45-49 I 
dont' see any use of this, you can as well keep it in local variable in 
checkOS()
  ql/src/java/org/apache/hadoop/hive/ql/io/HiveOutputFormatImpl.java:75 Instead 
of throwing Runtime, you should throw IOException which method signature allows 
you to do.
  ql/src/java/org/apache/hadoop/hive/ql/exec/ExecDriver.java:268 This results 
in setting of NullOF in all the shims. We should no longer do that, since we 
are resetting it again in following line.
  ql/src/java/org/apache/hadoop/hive/ql/exec/FileSinkOperator.java:769 Is this 
null check necessary? At the time, checkOS is called, hiveOF would already have 
been initialized, no?
  
ql/src/java/org/apache/hadoop/hive/ql/io/HiveNullValueSequenceFileOutputFormat.java:27
 Looks like this import statement inadvertently got added.
  ql/src/java/org/apache/hadoop/hive/ql/exec/FileSinkOperator.java:781 To 
maintain backward-compat you should first check whether hiveOF has the method 
checkOS, and call it only if it has.

REVISION DETAIL
  https://reviews.facebook.net/D2205

BRANCH
  hbase-dt-of

                
> Obtain delegation tokens for MR jobs in secure hbase setup  
> ------------------------------------------------------------
>
>                 Key: HIVE-2764
>                 URL: https://issues.apache.org/jira/browse/HIVE-2764
>             Project: Hive
>          Issue Type: Improvement
>          Components: HBase Handler, Security
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>         Attachments: HIVE-2764.D2205.1.patch, HIVE-2764.D2205.2.patch, 
> HIVE-2764_v0.patch
>
>
> As discussed in HCATALOG-244, in a secure hbase setup with 0.92, we need to 
> obtain delegation tokens for hbase and save it in jobconf, so that tasks can 
> access region servers. 

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