[GitHub] [doris] englefly opened a new pull request, #10395: Cir234 yk

[GitBox <gi...@apache.org>]

englefly opened a new pull request, #10395:
URL: https://github.com/apache/doris/pull/10395

   # Proposed changes
   SegmentIterator adjust the row number of a batch according to the row bytes and max_block_size(64M). 
   The default row number of a batch is 4096, which is not friendly for big-wide table.
   
   5 concurrent execution of "insert into big_wide-table select...", mem peak decreased from 44G to 33G with the same speed.
   
   
   Issue Number: close #xxx
   
   ## Problem Summary:
   
   Describe the overview of changes.
   
   ## Checklist(Required)
   
   1. Does it affect the original behavior: (Yes/No/I Don't know)
   2. Has unit tests been added: (Yes/No/No Need)
   3. Has document been added or modified: (Yes/No/No Need)
   4. Does it need to update dependencies: (Yes/No)
   5. Are there any changes that cannot be rolled back: (Yes/No)
   
   ## Further comments
   
   If this is a relatively large or complex change, kick off the discussion at [dev@doris.apache.org](mailto:dev@doris.apache.org) by explaining why you chose the solution you did and what alternatives you considered, etc...
   


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[GitHub] [doris] englefly closed pull request #10395: Cir234 yk

[GitBox <gi...@apache.org>]

englefly closed pull request #10395: Cir234 yk
URL: https://github.com/apache/doris/pull/10395


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