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

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

Github user mwws commented on the pull request:

    https://github.com/apache/spark/pull/8760#issuecomment-147064097
  
    @squito , I have add the unit test and fix several bug, could you help to review and help merge into Spark?
    
    About the important case you described above, it make sense, the question would be who and when "relaying" bad executors information to allocator. YarnSchedulerBackend might be a good info sender, it can  periodically check if *(totalRegisteredExecutors - blackliskExecutors.size < minExpectedExecuors)*. Let's open another JIRA to discuss more details.


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