[v3] The Parquet file generation is abnormal and results in multiple files

By default, Parquet should generate a file every 10 minutes, but I have observed that it has generated hundreds of files. What is the reason for this, because the data insertion is too large?

No source file, test, or entry point is named. Start by reproducing Parquet generation with the reported insertion volume and trace the v3 path around the 10-minute rotation setting; done means identifying why hundreds of files are produced and documenting or testing the expected behavior.

Written by the indexing model from the issue text.