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Posted to dev@tajo.apache.org by "Jihoon Son (JIRA)" <ji...@apache.org> on 2013/10/29 14:56:30 UTC

[jira] [Commented] (TAJO-292) Too many intermediate partition files

    [ https://issues.apache.org/jira/browse/TAJO-292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13807991#comment-13807991 ] 

Jihoon Son commented on TAJO-292:
---------------------------------

+1 for this issue. 
This will improve the performance significantly. 

> Too many intermediate partition files
> -------------------------------------
>
>                 Key: TAJO-292
>                 URL: https://issues.apache.org/jira/browse/TAJO-292
>             Project: Tajo
>          Issue Type: Bug
>          Components: repartitioning
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>            Priority: Critical
>             Fix For: 0.8-incubating
>
>
> Unlike the before, the number of partitions are being currently determined by the volume size and the number of distinct keys. It can cause unnecessary overheads. We need to improve the partition number determiner to consider the number of cluster nodes.



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