kevinjqliu commented on issue #1305:
URL: 
https://github.com/apache/iceberg-python/issues/1305#issuecomment-2466466411

   > pyiceberg.exceptions.CommitFailedException
   
   This is not a thread issue. This is expected when you have concurrent 
writers. The writer should retry the commit. See #1084 for a similar issue. And 
#269 as the issue to track this feature. 
   See 
https://github.com/apache/iceberg-python/issues/269#issuecomment-2402969232 for 
a workaround. 
   
   > i have too many rows to write to the same iceberg table.... how to speed 
it up?
   
   You can try writing batches as parquet files, and then collect them all in 
the main method. Use the `add_files` method to commit all parquet files to the 
iceberg table, this will commit only once to the table. 
   


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