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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4880) Rearrange explain order of stages simpler
Date Wed, 24 Jul 2013 05:59:50 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13718022#comment-13718022
] 

Gunther Hagleitner commented on HIVE-4880:
------------------------------------------

[~ashutoshc], [~brocknoland], [~appodictic] - there's a question on how to best order stages
of the execution plan for user to understand and follow along... Same order as hive executes
the plan, depth first (except that all the parents have to show first), something else? Do
you guys have an opinion?
                
> Rearrange explain order of stages simpler
> -----------------------------------------
>
>                 Key: HIVE-4880
>                 URL: https://issues.apache.org/jira/browse/HIVE-4880
>             Project: Hive
>          Issue Type: Improvement
>          Components: Diagnosability
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Trivial
>         Attachments: HIVE-4880.D11733.1.patch
>
>
> Current explain order of stages is not best form to read (and to debug)
> {noformat}
> Before:
> STAGE DEPENDENCIES:
>   Stage-1 is a root stage
>   Stage-7 depends on stages: Stage-1 , consists of Stage-4, Stage-3, Stage-5
>   Stage-4
>   Stage-0 depends on stages: Stage-4, Stage-3, Stage-6
>   Stage-9 depends on stages: Stage-0
>   Stage-2 depends on stages: Stage-9
>   Stage-3
>   Stage-5
>   Stage-6 depends on stages: Stage-5
> After:
> STAGE DEPENDENCIES:
>   Stage-1 is a root stage
>   Stage-2 depends on stages: Stage-1 , consists of Stage-3, Stage-4, Stage-5
>   Stage-3
>   Stage-4
>   Stage-5
>   Stage-6 depends on stages: Stage-5
>   Stage-7 depends on stages: Stage-3, Stage-4, Stage-6
>   Stage-8 depends on stages: Stage-7
>   Stage-9 depends on stages: Stage-8
> {noformat}

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