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https://issues.apache.org/jira/browse/PHOENIX-2771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15201792#comment-15201792
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Sergey Soldatov commented on PHOENIX-2771:
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Hm. I will check the IT tests.
> Improve the performance of IndexTool by building the index mutations at
> reducer side
> ------------------------------------------------------------------------------------
>
> Key: PHOENIX-2771
> URL: https://issues.apache.org/jira/browse/PHOENIX-2771
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Rajeshbabu Chintaguntla
> Assignee: Sergey Soldatov
> Fix For: 4.8.0
>
> Attachments: PHOENIX-2771-1.patch
>
>
> Instead of writing the full index mutations to map output at mapper we can
> just write combined value of indexed column values and prepare proper key
> values at reducer same as PHOENIX-1973.
> [~sergey.soldatov] can you take up this?
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