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https://issues.apache.org/jira/browse/HADOOP-2508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563311#action_12563311
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Bryan Duxbury commented on HADOOP-2508:
---------------------------------------

It seems ugly to expose the special delete bytes constant. People outside of MR 
will get use a reasonable put/delete interface, but inside MR, you have to use 
a magic constant?

Likewise, emitting HStoreKeys seems clunky. I know that you can emit multiple 
keys per map, but then you run the risk of your updates being done 
individually, not in batches, and hurting performance. Also, are HStoreKeys 
actually exposed to the user via the public api elsewhere?

> [Hbase] TableOutputFormat could not assign a timestamp
> ------------------------------------------------------
>
>                 Key: HADOOP-2508
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2508
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>         Attachments: 2508.patch
>
>
> When i use the TableOutputFormat, It is impossible to assign an specified 
> timestamp to the row.
> We may want to assign an specified timestamp.

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