zhtaoxiang opened a new pull request, #10335:
URL: https://github.com/apache/pinot/pull/10335

   In SegmentGenerationAndPushTask, the SEQUENCE_ID used to identify each 
segment is only unique to each round of task generation. Across multiple rounds 
of task generation, the SEQUENCE_ID can be the same.
   
   This may lead to segment name collision, and existing segments will be 
overridden. Since old segments are overridden, corresponding files become 
un-ingested, the generator will generate new tasks, which generates segments 
with same names, and override existing segments again... It becomes an endless 
loop
   
   We add uuid to segment name to avoid segment collision across multiple 
rounds of task generation to solve the problem.


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