Pindikura Ravindra created ARROW-5482:
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Summary: reduce heap footprint of ValueVectors
Key: ARROW-5482
URL: https://issues.apache.org/jira/browse/ARROW-5482
Project: Apache Arrow
Issue Type: Task
Components: Java
Reporter: Pindikura Ravindra
Assignee: Pindikura Ravindra
In some scenarios, we hold lots of value vectors in memory eg. during join,
aggregation. The heap analysis shows that the costs are as follows for a simple
IntVector (used VisualVM on mac) :
IntVector : 80 bytes
vector.types.pojo.FieldType : 41 bytes
vector.types.pojo.Field : 40 bytes
IntReaderImpl : 28 bytes
I'll use this Jira to track ways to reduce the heap usage.
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