Github user li-zhihui commented on the pull request:
https://github.com/apache/spark/pull/900#issuecomment-46657630
@tgravescs @mridulm
In my test case(4 nodes, 128 executors), it need 25 seconds to register all
executors.
Now maxRegisteredWaitingTime = 10 senconds, I think it's not enough.
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