Github user markgrover commented on the pull request:
https://github.com/apache/spark/pull/8093#issuecomment-130865695
Thanks @vanzin. I looked at #8007 and some pieces of it are definitely very
relevant. So, I will use some of the ideas from there.
In full disclosure, I did do a quick hack to see what I could do about the
race and I was able to get the UI to update. The code for that is at
https://github.com/markgrover/spark/compare/nm2...race
The semantics are - in the cases where onDisconnected wins the race, we
send a new message down the listener bus with the updated reason received from
the RemoveExecutor message when it arrives later on, which updates the UI.
However, I am going to try a second approach with some ideas from #8007 to
see if that can be used instead.
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