[GitHub] zeppelin issue #1339: [ZEPPELIN-1332] Remove spark-dependencies & suggest ne...

[AhyoungRyu <gi...@git.apache.org>]

Github user AhyoungRyu commented on the issue:

    https://github.com/apache/zeppelin/pull/1339
  
    @bzz @Leemoonsoo 
    Sorry for my late response. I spent some time to test various cases on the different OS.
    I think it's ready for review(CI is green at last!). 
    I updated the PR description accordingly. Hope it helps you to remind the purpose of this PR :)
    
    Here is the list of changes after my initial commits
    
     - Directory of Spark bin
    I changed the dir of Spark bin from `interpreter/spark/` to `local-spark`. Since `mvn clean` will remove `interpreter/`, users will see \u201cDo you want to download local Spark?\u201d whenever they re-build and restart Zeppelin. So I think creating a new dir(`local-spark`) would be better in this case.
    
     - Supporting Windows users
    I wanted to create `download-spark.cmd` for Windows. But sadly we can\u2019t use many shell commands such as `curl`, `tar` and `sed` in the batch script. It was hard to find 100% compatible commands for Windows. Maybe we can guide the Windows users to install those commands by themselves, but it\u2019s a bit overdoing i think. Actually `download-spark` script is only for downloading the latest version of Spark and set `SPARK_HOME`. So I updated some docs to explain this as a alternative way. 
    
     - Documentations
    I think it\u2019s quite big change that ppl need to enter \u201cYes/No\u201d when they start Zeppelin. Even though it\u2019s only one time. So I updated `README.md`, `install.md` and `spark.md`. The below screenshot is `spark.md`. 
    ![screen shot 2016-09-13 at 8 22 34 pm](https://cloud.githubusercontent.com/assets/10060731/18516345/8b0820ac-7ad3-11e6-8581-11e3cb12c57a.png)
    
    
    And as @bzz said before, 
    >How about EMR\Dataproc\Juju\BigTop users, will the proposed change affect them? 
    
    Do we need to provide this local Spark mode for them? Actually it's my question.. :D
    And please feel free to point me for anything if it's needed.


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