Github user lirui-intel commented on the pull request:
https://github.com/apache/spark/pull/892#issuecomment-45397685
@mateiz - I added this waiting time into every TaskSetManager because with
dynamic resizing clusters (as you suggested earlier), we may add new executors
when new task sets are added. Sorry if I misunderstand though. But yes, we can
have a separate JIRA to deal with the delay scheduling of
pendingTasksWithNoPrefs.
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