hongbin ma created KYLIN-1136:
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             Summary: Distinguish fast build mode and complete build mode
                 Key: KYLIN-1136
                 URL: https://issues.apache.org/jira/browse/KYLIN-1136
             Project: Kylin
          Issue Type: Improvement
    Affects Versions: 2.0
            Reporter: hongbin ma
            Assignee: hongbin ma


currently BuildCubeWithEngineTest is responsible for building 4 test cubes for 
other test cases to use. we intend to build the cubes by stages(use incremental 
cube building and cube merging, this meaning multiple rounds of MR jobs) so 
that we can make sure to cover both job engine's cube building and merging 
functions

On the other hand, sometimes when we're working on other modules, we don't care 
how a cube is built, we only need a queryable cube(like when we're developing 
query engine). This is when fast mode would be help full. In 
BuildCubeWithEngineTest fast mode, every test cube will be built with a single 
segment, this means only a single round of MR is required for each cube, this 
will make BuildCubeWithEngineTest much faster.




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