[jira] [Assigned] (HIVE-17754) InputJobInfo in Pig UDFContext is heavyweight, and causes OOMs in Tez AMs

["Mithun Radhakrishnan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-17754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mithun Radhakrishnan reassigned HIVE-17754:
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> 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
>
> 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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