KnightChess created HUDI-4214:
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Summary: repeat init writeSchema in every ExpressionPayload cause
FGC frequent
Key: HUDI-4214
URL: https://issues.apache.org/jira/browse/HUDI-4214
Project: Apache Hudi
Issue Type: Improvement
Reporter: KnightChess
Attachments: image-2022-06-09-22-29-38-176.png,
image-2022-06-09-22-32-19-753.png
spark sql merge into a large amount of data, the executors fgc frequent when
use ExpressionPayload
Default ExternallSpillMap memory size is 1G
!image-2022-06-09-22-29-38-176.png!
far more than 1g in fact when running the task, ObjectSizeCalculator can't
calculate the null size, writeSchema will repeat init in every income record
when use
!image-2022-06-09-22-32-19-753.png!
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