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Posted to commits@hudi.apache.org by "KnightChess (Jira)" <ji...@apache.org> on 2022/06/09 14:38:00 UTC

[jira] [Created] (HUDI-4214) repeat init writeSchema in every ExpressionPayload cause FGC frequent

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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