-Running multiple application from the same Application Master
I was reading on this link
that we can implement an Application Master to manage multiple
applications. The text reads like this:
*It’s useful to remember that, in reality, every application has its own
instance of an ApplicationMaster. However, it’s completely feasible to
implement an ApplicationMaster to manage a set of applications (e.g.
ApplicationMaster for Pig or Hive to manage a set of MapReduce jobs). *
How is it possible? Do they have different application IDs and are they
treated as different applications on the cluster? What are the
positive/negative implications of it? Is it a recommended way?