davidrabinowitz opened a new pull request #1027:
URL: https://github.com/apache/hive/pull/1027


   At start-up, HiveServer2 will do a full DB & Table scan. For large Hive 
Metastores, this operation could take 10+ minutes to complete. The goal of this 
task is to make this “verification” optional if possible.
   
   It seems that <= Hive 2.3.x && >= Hive 3.0 *does not* have this behavior.
   
   This changes introduces a new flag, 
`hive.server2.materializedviews.cache.at.startup` that by setting it to false 
the cache warmup is disabled. 
   


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