[jira] [Resolved] (PHOENIX-2635) Partial index rebuild doesn't work for mutable data

["James Taylor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-2635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Taylor resolved PHOENIX-2635.
-----------------------------------
    Resolution: Fixed

> Partial index rebuild doesn't work for mutable data
> ---------------------------------------------------
>
>                 Key: PHOENIX-2635
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2635
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>            Assignee: James Taylor
>             Fix For: 4.7.0
>
>         Attachments: PHOENIX-2635.patch, PHOENIX-2635_v2.patch, PHOENIX-2635_v3.patch
>
>
> The partial rebuild index feature for mutable secondary indexes does not do the correct index maintenance. We currently only insert the new index rows based on the current data row values which would not correctly remove the previous index row (thus leading to an invalid index). Instead, we should replay the data row mutations so that the coprocessors generate the correct deletes and updates.
> Also, instead of *every* region running the partial index rebuild, we should have each region only replay their own data mutations so that we're not duplicating work.
> A third (and perhaps most serious) issue is that the partial index rebuild could trigger the upgrade code before a cluster is ready to be upgraded. We'll definitely want to prevent that.



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