Github user jerryshao commented on the pull request:

    https://github.com/apache/spark/pull/8669#issuecomment-150223128
  
    Hi @srowen , I admitted currently solution is quite ugly, but like what you 
mentioned, it is a chicken-and-egg problem, hard to remove the duplication. 
Another solution is by setting `SPARK_HOME` to manually support symlink, but it 
still needs to change the current executables, currently we don't honor 
`SPARK_HOME`. Take `beeline` as a example, even `SPARK_HOME` is set, still we 
could not execute from symlink.
    
    So if setting `SPARK_HOME` as a compromise solution agreed by you guys, I 
could update the codes.
    
    What's your opinion?


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