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From "Gabriel Reid (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-1609) MR job to populate index tables
Date Sun, 08 Mar 2015 19:18:38 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-1609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14352209#comment-14352209
] 

Gabriel Reid commented on PHOENIX-1609:
---------------------------------------

Looks ready to go as far as I'm concerned, nice work [~maghamravikiran@gmail.com].

> MR job to populate index tables 
> --------------------------------
>
>                 Key: PHOENIX-1609
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1609
>             Project: Phoenix
>          Issue Type: New Feature
>            Reporter: maghamravikiran
>            Assignee: maghamravikiran
>         Attachments: 0001-PHOENIX-1609-4.0.patch, 0001-PHOENIX-1609-4.0.patch, 0001-PHOENIX-1609-wip.patch,
0001-PHOENIX_1609.patch
>
>
> Often, we need to create new indexes on master tables way after the data exists on the
master tables.  It would be good to have a simple MR job given by the phoenix code that users
can call to have indexes in sync with the master table. 
> Users can invoke the MR job using the following command 
> hadoop jar org.apache.phoenix.mapreduce.Index -st MASTER_TABLE -tt INDEX_TABLE -columns
a,b,c
> Is this ideal? 



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