inspect why flink batch write rollback

[马阳阳]

Hi community，
I used Flink (1.12.0) to write to hudi (0.9.0-SNAPSHOT, self-packaged) in batch 
mode. The writing job finished without any errors. But I could not get any data 
from the written table. After some writes, there is a .rollback file under 
.hoodie directory. 
So my question is: is there a way for me to inspect why the writing is rolled 
back?