Github user jerryshao commented on the pull request:
https://github.com/apache/spark/pull/6870#issuecomment-117867140
Hi @squito , thanks a lot for your comments, greatly appreciate it. I think
the total blacklist executor number is controlled by
`spark.scheduler.blacklist.maxBlacklistFraction`, which is 0.5 by default,
means the number of blacklisted executors should not be more than half of the
whole cluster.
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