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https://issues.apache.org/jira/browse/HIVE-19041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16462854#comment-16462854
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Sahil Takiar commented on HIVE-19041:
-------------------------------------
Few comments:
* In {{Partition}} doesn't look like we properly intern the {{catName}} in
{{setCatName}}
* Some of the optional parameters in {{SerDeInfo}} don't look properly interned
when they get set
* Some of the calls to {{readString}} in {{FieldSchema}} don't seem to be fully
covered. It's only interning the {{name}} parameter, but not {{type}} or
{{comment}}.
> Thrift deserialization of Partition objects should intern fields
> ----------------------------------------------------------------
>
> Key: HIVE-19041
> URL: https://issues.apache.org/jira/browse/HIVE-19041
> Project: Hive
> Issue Type: Improvement
> Components: Metastore
> Affects Versions: 3.0.0, 2.3.2
> Reporter: Vihang Karajgaonkar
> Assignee: Vihang Karajgaonkar
> Priority: Major
> Attachments: HIVE-19041.01.patch
>
>
> When a client is creating large number of partitions, the thrift objects are
> deserialized into Partition objects. The read method of these objects does
> not intern the inputformat, location, outputformat which cause large number
> of duplicate Strings in the HMS memory. We should intern these objects while
> deserialization to reduce memory pressure.
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