Hi, I have a Spark resource scheduling order question when I read this code:
github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/deploy/master/Master.scala In function schedule(), spark start drivers first, then start executors. I’m wondering why we schedule in this order? Will the resource be wasted if a driver has been started but no resource for its executor? Why don’t we start executors for the drivers have already running first? Thanks, Linfeng
