Github user colorant commented on the pull request:
https://github.com/apache/incubator-spark/pull/611#discussion_r9852391
Yes, I think we could if no other possible LeaderElectionAgent will need
it. And it will need to change the program flow say create some method to
replace prestart/poststop etc. So I just keep it untouched in this pull
request. Or you think we should do away it right now?
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