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https://issues.apache.org/jira/browse/HIVE-24688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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László Bodor updated HIVE-24688:
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Description:
It's necessarily copyToStandardObject which should be optimized, but we need to
consider some optimization on the attached codepath.
In a customer case, 3 reducer tasks run forever (handling skewed keys) and most
of the time is spent on this code path
, utilizing GC heavily. At the moment I'm open to any kind of optimization.
!Screen Shot 2021-01-27 at 9.52.32 AM.png|width=652,height=280!
was:
It's necessarily copyToStandardObject which should be optimized, but we need to
consider some optimization on the attached codepath.
In a customer case, 3 reducer tasks run forever (handling skewed keys) and most
of the time is spent on this code path
, utilizing GC heavily. At the moment I'm open to any kind of optimization.
!Screen Shot 2021-01-27 at 9.52.32 AM.png!
> Optimise ObjectInspectorUtils.copyToStandardObject
> --------------------------------------------------
>
> Key: HIVE-24688
> URL: https://issues.apache.org/jira/browse/HIVE-24688
> Project: Hive
> Issue Type: Improvement
> Reporter: László Bodor
> Assignee: László Bodor
> Priority: Major
> Attachments: Screen Shot 2021-01-27 at 9.52.32 AM.png
>
>
> It's necessarily copyToStandardObject which should be optimized, but we need
> to consider some optimization on the attached codepath.
> In a customer case, 3 reducer tasks run forever (handling skewed keys) and
> most of the time is spent on this code path
> , utilizing GC heavily. At the moment I'm open to any kind of optimization.
> !Screen Shot 2021-01-27 at 9.52.32 AM.png|width=652,height=280!
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