[GitHub] [pinot] Jackie-Jiang commented on issue #10788: Rebalance with Downtime Can Cause Data Loss

["Jackie-Jiang (via GitHub)" <gi...@apache.org>]

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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