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Posted to issues@carbondata.apache.org by "Ravindra Pesala (JIRA)" <ji...@apache.org> on 2019/03/22 05:58:00 UTC

[jira] [Resolved] (CARBONDATA-3321) Improve Single/Concurrent query performance

     [ https://issues.apache.org/jira/browse/CARBONDATA-3321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ravindra Pesala resolved CARBONDATA-3321.
-----------------------------------------
       Resolution: Fixed
    Fix Version/s: 1.5.3

> Improve Single/Concurrent query performance 
> --------------------------------------------
>
>                 Key: CARBONDATA-3321
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-3321
>             Project: CarbonData
>          Issue Type: Improvement
>            Reporter: kumar vishal
>            Priority: Major
>             Fix For: 1.5.3
>
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> When number of Segments are high Single/Concurrent query is slow. because of below reason 
>  # Memory footprint is more because of this gc is more and reducing query performance
>  # Converting to Unsafe data map row to safe data map during pruning 
>  # Multi threaded pruning in case of non filter query is not supported 
>  # Retrieval from unsafe data map row is slower 



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