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https://issues.apache.org/jira/browse/PHOENIX-1609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14333676#comment-14333676
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James Taylor commented on PHOENIX-1609:
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Patch looks really good, [~maghamraviki...@gmail.com]. Please make sure to 
include tests for the functional index case too. One question: would it be 
possible to cancel the MR job if the index state goes to DISABLE (or the index 
is dropped) so that the user has a SQL way to cancel the job? If not, then I 
suppose there's a MR way to cancel the job as well.

> 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-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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