[GitHub] spark pull request: [Spark-8426] [scheduler] enhance blacklist mec...

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

Github user squito commented on the pull request:

    https://github.com/apache/spark/pull/8760#issuecomment-220069649
  
    Hi everyone, sorry this has sat around for so long, but this is a super important feature, so I'd like to finish up the missing pieces and get this in (with credit to @mwws still, of course).  Other than just fixing merge conflicts, it seems there are two things which need to be addressed: (1) addressing performance concerns with some profiling and (2) investigating a lock-free implementation (think this can be done but need to look more carefully).  I'll also build on the tests introduced here https://github.com/apache/spark/pull/8559.
    
    I'll open a WIP pr in the next day or two at least, but please let me know if I'm missing any major concern.


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