[KYLIN-2004] Make the creating intermediate hive table steps configurable (two options)

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: v1.5.3
• Fix Version/s: v1.5.4
• Component/s: Job Engine
• Assignee: Shao Feng Shi
• Reporter: Shao Feng Shi
• Created: 09/Sep/16 05:35
• Updated: 15/Sep/16 03:35
• Resolved: 11/Sep/16 06:58

Description

In 1.5.3 for KYLIN-1677, Kylin changed the steps when pull data from hive as: 1) count the source table 2) create intermediate flat table with redistribution (reducer number is determined by step1)

This works good for many cases, but may not benefit for case like a view (which joins several tables) as the fact table.

So it is better to keep the other option: 1) create intermediate flat table 2) count the intermediate table 3) redistribute it based on the output of step 2)

Plan to make this configurable (system level & cube level).