I have two clusters, but small dev clusters, and I loaded the same dataset into both of them. The data size on disk is within 2000 Bytes. Both are ORC, one is Hive 11 and one is Hive 12. One is allocating about 8 more mappers to the exact same query. I am just curious what settings would change that. I checked through all my setting, but can't see what would cause the discrepancy. Is this an ORC v11 vs v12 thing?
I'd be curious on the thoughts of the group.
