Jackie-Jiang commented on issue #10788:
URL: https://github.com/apache/pinot/issues/10788#issuecomment-1557589266

   Allowing committing segment without persisting it to deep store is risky 
because there is always possibility that we lost all the servers. I think we 
should avoid doing downtime rebalance when segments are not guaranteed to be 
persisted in deep store. We don't want to always check download url though 
because that might be costly. We can check that only when peer download is 
enabled. We can also consider adding a flag to skip this check in case the 
cluster runs into a weird state and we have to perform a downtime rebalance 
even though it can cause data loss


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