Wilbur Yang created HIVE-7975:
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Summary: 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
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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