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From "Suma Shivaprasad (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (ATLAS-1060) Add composite indexes for exact match performance improvements for selected/all attributes
Date Wed, 27 Jul 2016 03:26:20 GMT

    [ https://issues.apache.org/jira/browse/ATLAS-1060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15394996#comment-15394996
] 

Suma Shivaprasad edited comment on ATLAS-1060 at 7/27/16 3:25 AM:
------------------------------------------------------------------

The other choice is to enable composite indexes for all attributes. Have attached patch ATLAS-1060-all-attributes.patch
with this approach. Based on perf impact and numbers, could decide on which option to choose.
But inituitively , enabling for all attributes would definitely increase write latency for
entities and hence we need to evaluate this carefully.


was (Author: suma.shivaprasad):
The other choice is to enable composite indexes for all attributes. Have attached patch ATLAS-1060-all-attributes.patch
with this approach. Based on perf impact and numbers, could decide on which option to choose.


> Add composite indexes for exact match performance improvements for selected/all attributes
> ------------------------------------------------------------------------------------------
>
>                 Key: ATLAS-1060
>                 URL: https://issues.apache.org/jira/browse/ATLAS-1060
>             Project: Atlas
>          Issue Type: Bug
>    Affects Versions: 0.7-incubating, 0.8-incubating
>            Reporter: Suma Shivaprasad
>            Assignee: Suma Shivaprasad
>             Fix For: 0.8-incubating
>
>         Attachments: ATLAS-1060-all-attributes.patch, ATLAS-1060.patch
>
>
> Proposal is to add a flag for each attribute which is by default 'false' for creating
exact match indexes (titan composite indexes). By default mixed idexes are created but not
used for exact matches. The proposal is to add them for selected attributes.



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