Github user Leemoonsoo commented on the issue:

    https://github.com/apache/zeppelin/pull/1660
  
    @jongyoul Could you describe more about the personalized mode?  I don't 
think current implementation is anywhere close to personalized mode discussed 
in https://issues.apache.org/jira/browse/ZEPPELIN-1236.
    
    I think Personalized mode should be
    
    * Keep boardcast every changes to every users who open the same note
    * Zeppelin personalize parts of the Note, which is
        - paragraph.result (output)
        - paragraph.config.graph (graph selections)
        - paragraph.settings (dynamic form)
    
    So, every changes, like paragraph addition, deletion, change the code, 
change width, 
    everything is broadcasted, but only result / graph selection / dynamic form 
is personalized.
    
    Current implementation will have following limitations
      - Once user refresh the page, user will see the other result.
      - Once two users changes note at the same time (i.e. update paragraph 
code, change paragraph order,  etc), the result is undefined.
      - Chart selection, dynamic form value is not personalized, which is major 
pain point that personalized mode try to resolve, i think.
    
    What do you think?


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