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https://issues.apache.org/jira/browse/HIVE-17754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mithun Radhakrishnan updated HIVE-17754:
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Attachment: HIVE-17754.2-branch-2.patch
> InputJobInfo in Pig UDFContext is heavyweight, and causes OOMs in Tez AMs
> -------------------------------------------------------------------------
>
> Key: HIVE-17754
> URL: https://issues.apache.org/jira/browse/HIVE-17754
> Project: Hive
> Issue Type: Bug
> Components: HCatalog
> Affects Versions: 2.2.0, 3.0.0
> Reporter: Mithun Radhakrishnan
> Assignee: Mithun Radhakrishnan
> Attachments: HIVE-17754.1.patch, HIVE-17754.2-branch-2.patch,
> HIVE-17754.2.patch
>
>
> HIVE-9845 dealt with reducing the size of HCat split-info, to improve
> job-launch times for Pig/HCat jobs.
> For large Pig queries that scan a large number of Hive partitions, it was
> found that the Pig {{UDFContext}} stored full-fat HCat {{InputJobInfo}}
> objects, thus blowing out the Pig Tez AM. Since this information is already
> stored in the {{HCatSplit}}, the serialization of {{InputJobInfo}} can be
> spared.
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