a quick walk-thru of how minor and major compactions occur for hive transactional tables; ensuring all the delta files eventually roll into base ones
Monthly Archives: December 2019
hive acid transactions with partitions (a behind the scenes perspective)
let’s take a deeper look at what happens under the hood of hive on these “acid” activities such as insert, update and delete — including look at the actual directories and orc files created
viewing the content of ORC files (using the Java ORC tool jar)
a quick tutorial about finding and using the orc java tool jar for peering into the contents of the otherwise non humanly readable orc file format