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https://issues.apache.org/jira/browse/HIVE-7975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wilbur Yang updated HIVE-7975:
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Attachment: HIVE-7975.2.patch
Updated patch.
> HS2 memory optimization: Internalizing instance fields of Thrift-generated
> metastore API classes
> ------------------------------------------------------------------------------------------------
>
> Key: HIVE-7975
> URL: https://issues.apache.org/jira/browse/HIVE-7975
> Project: Hive
> Issue Type: Improvement
> Reporter: Wilbur Yang
> Assignee: Wilbur Yang
> Fix For: 0.14.0
>
> Attachments: HIVE-7975-doc.pdf, HIVE-7975.1.patch, HIVE-7975.2.patch
>
>
> We should internalize the String-based instance fields of the metastore API
> classes FieldSchema, Partition, SerDeInfo, and StorageDescriptor in order to
> save memory. In a test environment with data consisting of about 1800
> partitions, the proposed changes are able to save about 24% of old generation
> memory during a complex query. See details in the attached document.
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