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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-4344) MapReduce Delete Support
Date Fri, 03 Nov 2017 01:06:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-4344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16236914#comment-16236914
] 

James Taylor commented on PHOENIX-4344:
---------------------------------------

I see - yes, you're right - that would work. It'd do a point scan for each row if there was
a non PK column as it'd need to look up that value to maintain the index. It'd work, it'd
just be slow.

> MapReduce Delete Support
> ------------------------
>
>                 Key: PHOENIX-4344
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4344
>             Project: Phoenix
>          Issue Type: New Feature
>    Affects Versions: 4.12.0
>            Reporter: Geoffrey Jacoby
>            Assignee: Geoffrey Jacoby
>            Priority: Major
>
> Phoenix already has the ability to use MapReduce for asynchronous handling of long-running
SELECTs. It would be really useful to have this capability for long-running DELETEs, particularly
of tables with indexes where using HBase's own MapReduce integration would be prohibitively
complicated. 



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