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https://issues.apache.org/jira/browse/HUDI-4214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17555002#comment-17555002
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Danny Chen commented on HUDI-4214:
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Fixed via master branch: 0ff34b697416fc697dfa96a80496b74598a95263
> 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
> Assignee: KnightChess
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.12.0
>
> 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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