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https://issues.apache.org/jira/browse/ORC-638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lei Sun reassigned ORC-638:
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> ORCMapredRecordWriter enlarge columnVector with factors when child array size
> is not large enough
> -------------------------------------------------------------------------------------------------
>
> Key: ORC-638
> URL: https://issues.apache.org/jira/browse/ORC-638
> Project: ORC
> Issue Type: Improvement
> Reporter: Lei Sun
> Assignee: Lei Sun
> Priority: Major
>
> Currently the ensureSize() method is called with the targetSize being current
> childCount. The downside of it: It could keep triggering resize everytime
> when new list-as-a-row being added and slow down the write throughput.
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