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Posted to issues@hive.apache.org by "Mithun Radhakrishnan (JIRA)" <ji...@apache.org> on 2017/10/10 17:00:10 UTC
[jira] [Comment Edited] (HIVE-17754) InputJobInfo in Pig UDFContext
is heavyweight, and causes OOMs in Tez AMs
[ https://issues.apache.org/jira/browse/HIVE-17754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16198244#comment-16198244 ]
Mithun Radhakrishnan edited comment on HIVE-17754 at 10/10/17 4:59 PM:
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This fix depends on HIVE-11548. The attached patch contains both the fix for HIVE-11548 and the one for HIVE-17754. Submitting for tests...
was (Author: mithun):
This fix depends on HIVE-11548. The attached patch contains both the fix for HIVE-11548 and HIVE-17754. Submitting for tests...
> 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-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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