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From "Christine Feng (Jira)" <j...@apache.org>
Subject [jira] [Assigned] (PHOENIX-5682) IndexTool can just update empty_column with verified if rest of index row matches
Date Tue, 25 Feb 2020 21:56:00 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-5682?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Christine Feng reassigned PHOENIX-5682:
---------------------------------------

    Assignee: Christine Feng

> IndexTool can just update empty_column with verified if rest of index row matches
> ---------------------------------------------------------------------------------
>
>                 Key: PHOENIX-5682
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5682
>             Project: Phoenix
>          Issue Type: Improvement
>    Affects Versions: 4.15.1, 4.14.3
>            Reporter: Priyank Porwal
>            Assignee: Christine Feng
>            Priority: Minor
>             Fix For: 4.15.1, 4.14.4, 4.16.0
>
>
> When upgrading from old indexing design to new consistent indexing, IndexUpgradeTool
kicks off IndexTool to rebuild the index. This index rebuild rewrites all index rows. If any
index row was already consistent, it is rewritten + empty_column is updated with verified
flag. 
> IndexTool could potentially just update empty_column if rest of the index row matches
with data rows. This would save the massive writes to the underlying dfs, as well as other
side effects of these writes to replication.



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