hit-lacus edited a comment on issue #1166: Prepare DebugTomcat and Integration 
Test in Hadoop3 Env
URL: https://github.com/apache/kylin/pull/1166#issuecomment-604206291
 
 
   # Discussion
   > A lot of things have been changed, let me explained it here. Reply me if 
you have any concerns.
   
   
   ----
   ### Why use docker other than vm?
   
   ----
   ### Why choosing this HDP3 docker image, why not use a small and custom one?
   
   Following is the pros and cons of why I choose this HDP3 docker image:
   
   #### Pros
   - It is the only all-in-one official(for official, I means **hortonworks** 
and **cloudera**) Hadoop3 docker image I could find, I think it should be 
well-test by **hortonworks** teams.
   - Custom hadoop docker may lack (compared to HDP image):
       - Easy service monitor
       - Easy configuration modify
       - Standard hadoop layout (meet the convention) 
       - More mature combination
   
   #### Cons
   - The image is really big(27 GB), it not easy to download or 
distribute/share it.
   - Docker may has some unexpected problems which is annoying, but I will do 
my best to document them.
   
   #### Plan 
   I will try reduce its size after everything is done.
   
     
   ----
   ### Why choose macvlan as network?

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