rseetham commented on PR #18560:
URL: https://github.com/apache/pinot/pull/18560#issuecomment-4528993502

   > I see, let's try to root cause this then, basically apart from topic 
deletion, any other failure could cause the entire table stopped ingestion.
   
   This is still a valid fix. All topics in the table stopped ingesting. This 
process tried to restart ingestion and could not because 1 topic was deleted. I 
saw the RuntimeException from kafka in the logs. I don't know the initial 
reason the other topic stopped ingestion and I root cause and find it. But this 
is still a valid fix. This would've restarted the ingestion for the non-deleted 
topic.
   
   More context on the table. We had kafka offset reset enabled. In theory, all 
the backfill topics should be paused when they are done ingesting which means 
this restart process would work because it skips paused topics. The backfill 
topic was deleted. The other main topic stopped ingesting when the backfill 
topic was deleted. I think it was because the backfill topic was not paused. I 
will recreate it and see.
   We have over 300 tables with the same kafka offset reset setup where the 
backfill topic is in the config but and this issue happened to only 1 table. I 
will fix the kafka offset reset feature. This feature is the first time we're 
using the multi topic features so extensively so I'm discovering a lot of edge 
cases with multi topics where they don't work as expected  which I will fix. 
This is one of them. 
   


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