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From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-1346) deleterows should take a -r option
Date Fri, 10 May 2013 03:07:15 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-1346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13653500#comment-13653500
] 

Eric Newton commented on ACCUMULO-1346:
---------------------------------------

Stepping back a bit... deleterows is about aging off a time-based row.

It can be used for other things... like maybe you need to delete some giant section of a table.
 It adds a split, and it does unspeakable METADATA table gyrations.

It's not a subtle tool.

"Ooops, I created a single row that holds half my table's data" is not a use case. Deleting
a single row with a billion entries is not a use case.  Accumulo can delete a billion entries
in one hour on a silly 10 node cluster while randomly killing servers every few minutes.

Delete rows is for hacking away whole tablets.  It's a meat cleaver.  Finesse and precision
is not it's purpose.

                
> deleterows should take a -r option
> ----------------------------------
>
>                 Key: ACCUMULO-1346
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1346
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: shell
>    Affects Versions: 1.4.2
>            Reporter: Mike Drob
>            Assignee: Drew Farris
>            Priority: Minor
>              Labels: hackathon, hackation-5-2013
>
> deleterows only allows an exclusive begin row and an inclusive end row. This is difficult
to use for deleting a single (large) row. It would be nice if a user could specify -r, similar
to scan.

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