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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-3858) Index maintenance not required for local indexes of table with immutable rows
Date Wed, 17 May 2017 06:28:07 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-3858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16013611#comment-16013611
] 

James Taylor commented on PHOENIX-3858:
---------------------------------------

[~mujtabachohan] can you test with mutable tables for writes to confirm the 2x cost is due
to the lose of this optimization?

> Index maintenance not required for local indexes of table with immutable rows
> -----------------------------------------------------------------------------
>
>                 Key: PHOENIX-3858
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3858
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Rajeshbabu Chintaguntla
>            Assignee: Rajeshbabu Chintaguntla
>             Fix For: 4.11.0
>
>
> While preparing index mutations we are are scanning data region for index maintenance
which is not required in case of immutable rows. This optimisation is very helpful for local
indexes which got removed in the recent changes.
> FYI [~jamestaylor] [~mujtabachohan] Found this while checking PHOENIX-3853. 



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