[jira] [Created] (KYLIN-2004) Make the create hive steps configurable (two options)

["Shaofeng SHI (JIRA)" <ji...@apache.org>]

Shaofeng SHI created KYLIN-2004:
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             Summary: Make the create hive steps configurable (two options)
                 Key: KYLIN-2004
                 URL: https://issues.apache.org/jira/browse/KYLIN-2004
             Project: Kylin
          Issue Type: Improvement
          Components: Job Engine
    Affects Versions: v1.5.3
            Reporter: Shaofeng SHI
            Assignee: Shaofeng SHI
             Fix For: v1.5.4


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).



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