[GitHub] spark pull request: [SPARK-4475] change "localhost" to "127.0.0.1"...

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

Github user srowen commented on the pull request:

    https://github.com/apache/spark/pull/3425#issuecomment-73737787
  
    What was the outcome here? I can't claim to be an expert, but, obviously `localhost` is a symbolic name and that's generally the right thing to use to mean "the local machine", whereas `127.0.0.1` always means an IPv4 endpoint reached by TCP. The potential extra name resolution time isn't an issue here. When would `localhost` not resolve?
    
    FWIW the SocketServer example in Python docs uses `localhost` (https://docs.python.org/2/library/socketserver.html). Most of Spark does too, but, I see an example in the Python code in `daemon.py` where a process listens on `127.0.0.1`.
    
    Leave it unless there is a problem?


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