jonvex opened a new pull request, #9409:
URL: https://github.com/apache/hudi/pull/9409

   ### Change Logs
   
   Remove the broadcast when sending the file slices.
   
   ### Impact
   
   1 TB tpcds bootstrap queries 1-14 performance gap between new file format 
and fast bootstrap went from 2.23x to 1.01x. Similar performance gains expected 
for MOR table where many file slices have log files
   
   
   ### Risk level (write none, low medium or high below)
   
   low
   
   ### Documentation Update
   
   N/A
   
   ### Contributor's checklist
   
   - [ ] Read through [contributor's 
guide](https://hudi.apache.org/contribute/how-to-contribute)
   - [ ] Change Logs and Impact were stated clearly
   - [ ] Adequate tests were added if applicable
   - [ ] CI passed
   


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