tree cb3913bb73e4e4ec99a39998d903c203b35e07ed
parent c6d9386cfae0686c49d69e474494b750907e1117
author Ian <imaxon@uci.edu> 1403666078 -0700
committer Ian Maxon <imaxon@uci.edu> 1403916906 -0800

Add Shutdown via API to Hyracks

This change adds a method to HyracksConnection called stopCluster().
When the CC recieves a message from this, it asks all NC tasks to close
and acknowledge that they have recieved the message and are closing.
If all NCs have closed, or a 10 second timeout elapses, the CC then
exits with a 0 return code if all NCs closed, or a 1 if some did
not acknowledge the shutdown request.

Change-Id: Iaf3d395dc7964e114d4929830f40063f58e0d5da
Reviewed-on: http://fulliautomatix.ics.uci.edu:8443/76
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Vinayak Borkar <vinayakb@gmail.com>